Introduction - Quality Transmission Components

Quality Transmission Components
125 Railroad Avenue • Garden City Park • New York 11040 USA
Phone: 516.437.6700 • FAX: 516.328.3343
www.qtcgears.com • E-mail: qtcsupport@qtcgears.com
Handbook of Metric Gears Q420
This catalog is published in cooperation with Kohara Gear
Industr y Co. Ltd. located at 13-15 Naka-cho, KawaguchiShi, Saitama-Ken 332-0022 Japan. Their web address is:
h t t p : / / w w w. k h k g e a r s . c o . j p / e n g l i s h / i n d e x . h t m l .
Note: We reser ve the right to make changes & corrections
without notice. Every effort has been made to provide accurate
technical and product information. The company disclaims any
responsibility for any errors or omissions regarding the technical
and product information published. Please consult our online
catalog for the most up-to-date listing of products and specifications.
© 2007 Quality Transmission Components.
All rights reser ved herein and no por tion of this catalog
may be reproduced without prior consent in writing
from the company.
I
Company History
Started in 1993, Quality Transmission Components is an
operating division of Designatronics, Inc. Since its inception
in 1960, Designatronics serves a worldwide customer base in
excess of 15,000 firms ranging from Fortune 100 companies
to individual inventors. The company occupies 139,000 sq.
ft. of warehouse and manufacturing space on Long Island,
New York.
In 1993, the combination of an ever-increasing demand
for metric gears and a strong growth in demand for power
transmission products spawned Quality Transmission
Components. Designatronics capitalized on its relationship
with Kohara Gear (KHK), and Quality Transmission
Components became the exclusive North American distributor
of their complete product line. In 2006, Quality Transmission
Components shipped over 30,000 metric gears to users,
making us the largest supplier of stock metric gears in the
United States.
In 2000, Quality Transmission Components saw the
opportunity to expand our product line. We added the
Zetasassi line of belt and chain tensioners. We then added
neoprene timing belts, aluminum, steel and nylon timing
pulleys, roller chain and planetary gearheads. We also
became a distributor of Davall Stock Gears representing
their inch gear line in the North American marketplace. All
of these products are marketed under the Econobelt™ brand
name.
Quality Transmission Components' selection of off-the-shelf
power transmission components now includes almost 13,000
items including:
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Metric
Metric
Metric
Metric
Metric
Metric
Metric
Metric
Metric
Metric
Metric
Metric
Spur Gears
Helical Gears
Ring Gears (Internal & External)
Racks (Straight, Helical & Flexible)
Miter Gears (Straight & Spiral)
Bevel Gears (Straight & Spiral)
Screw Gears
Worms & Worm Wheels (Standard & Duplex)
Ratchets & Pawls
Gear Couplings
Involute Splines (Internal & External)
Gearboxes
II
Company History
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MXL Timing Belts (Neoprene)
XL Timing Belts (Neoprene)
L Timing Belts (Neoprene)
HTD3 Timing Belts (Neoprene)
HTD5 Timing Belts (Neoprene)
HTD8 Timing Belts (Neoprene)
AT5 Timing Belts (Neoprene)
AT10 Timing Belts (Neoprene)
T2.5 Timing Belts (Neoprene)
T5 Timing Belts (Neoprene)
T10 Timing Belts (Neoprene)
MXL Timing Pulleys (Steel & Aluminum)
XL Timing Pulleys (Steel, Nylon & Aluminum)
L Timing Pulleys (Steel, Nylon & Aluminum)
HTD3 Timing Pulleys (Steel, Nylon & Aluminum)
HTD5 Timing Pulleys (Steel, Nylon & Aluminum)
HTD8 Timing Pulleys (Steel, Nylon & Aluminum)
AT5 Timing Pulleys (Steel & Aluminum)
AT10 Timing Pulleys (Steel & Aluminum)
T2.5 Timing Pulleys (Steel & Aluminum)
T5 Timing Pulleys (Steel & Aluminum)
T10 Timing Pulleys (Steel & Aluminum)
Tensioner Arms
Belt Tensioners
Chain Tensioners
Idlers
Rollers
Sprockets (ISO Class)
Roller Chains (ANSI & ISO Class)
Diametral Pitch Spur Gears
Diametral Pitch Racks
Diametral Pitch Miter Gears (Straight & Spiral)
Diametral Pitch Bevel Gears (Straight & Spiral)
Diametral Pitch Worms & Worm Wheels
Planetary Gearheads
Belt Tension Meters
All of the products listed in bold are available from this
catalog. The other products are detailed on our Web site,
www.econobelt.com and the print catalog Q460.
QTC PART NUMBERS
For internal processing purposes, QTC part numbers, listed in
this catalog, will have a "K" prefix listed on all paperwork.
This "K" does not appear in the catalog, but will appear in
our online eStore and on all of our 3D CAD drawings.
III
Table of Contents
Page
1 • Spur Gears........................................................................... 25
2 • Helical Gears...................................................................... 129
3 • Internal Gears..................................................................... 147
4 • Racks.................................................................................. 153
5 • CP Racks & Pinions........................................................... 179
6 • Miter Gears......................................................................... 193
7 • Bevel Gears . ..................................................................... 227
8 • Screw Gears....................................................................... 277
9 • Worm Gear Pairs................................................................ 291
10 • Other Products................................................................... 349
Elements of Metric Gear Technology . ........................................T1
Appendix......................................................................................A1
IV
Terms and Conditions of Sale
CREDIT:
Bank and three trade references are required for
new accounts. Until the account is approved, the
Seller may require cash in advance, payment by
approved credit card or C.O.D.; C.O.D. orders
are subject to an additional handling charge.
As used herein, "Seller" means Quality
Transmission Components. "Buyer" means any
person ordering goods from Seller after March
31, 2006; and "person" means any individual,
corporation, company or other entity.
ORDERING: Goods may be ordered by:
(a) Telephone to: (516) 437-6700
(b) Fax to: (516) 328-3343
(c) Mail to: 125 Railroad Avenue, Garden City Park, NY 11040-5016
(d) UPS/other courier to: same as above
(e)E-mail to: qtcsupport@qtcgears.com
TERMS:
For open accounts, terms are net 30 days,
F.O.B. our plant. Open accounts are invoiced
for goods/freight when shipped. Seller accepts
VISA®, Master Card ®, American Express ®, and
Discover ®. Buyers paying by credit card are
charged for goods/freight when shipped, subject
to credit card approval. All past due amounts
shall bear interest at one and one-half percent
(1.5%) per month or the highest legal rate,
whichever is less; and Seller may recover all costs,
including attorneys' fees, incurred to collect any
past due amount.
Office hours are 9am – 5pm, EST, Monday –
Friday. You may fax (516) 328-3343 or E-mail
to: qtcsuppor t@gears.com at any time.
When ordering, specify part numbers, quantities,
desired delivery date and shipping method. For
larger production quantities, Seller will provide
written quote of price and delivery on request.
Seller will provide current price/stock status on
any catalog item by telephone or fax request.
Quotes for modified catalog parts or custommade parts are available on request. Please send
sketches or prints.
SHIPMENT; RISK OF LOSS:
Seller will ship goods as directed by the Buyer
or determined by the Seller, usually UPS, DHL or
FedEx; in any case at the Buyer's expense. Seller
will endeavor to meet promised delivery dates.
Buyer shall bear all risk of loss and damage after
goods are delivered to carrier, including any loss
or damage in transit.
MINIMUM ORDER:
Orders shipping to addresses within the USA,
$50 + freight. Orders shipping outside of the
USA, $75 + freight. There is an additional
charge of $10.00 for orders below the minimum.
There is no minimum order size for eStore online
orders.
RETURNS; EXCHANGES; SHORTAGES:
Buyer must get return authorization in writing.
Seller must approve returns and exchanges in
writing. Returns must be requested within 15 days
after receipt of goods. Returned goods will be
inspected and a restocking charge may be made.
No credit will be allowed on custom-made,
used or modified parts or parts purchased on a
quantity basis. Shortages must be reported within
10 days after receipt; and if so reported, Seller
will make up shortages at its cost.
PRICES:
Prices shall be as in effect at time of purchase
order or as agreed to in writing by Seller. Prices
listed in its catalog or elsewhere are subject to
change without notice. Please contact Seller
to confirm price. Prices do not include freight,
duties, special handling, certification, insurance
or taxes, which are all the Buyer's responsibility.
V
Terms and Conditions of Sale
it designates. BUYER SHALL HAVE NO
OTHER REMEDY AGAINST THE SELLER,
AND ALL OTHER REMEDIES ARE WAIVED,
INCLUDING ANY RIGHT TO RECOVER
C O N S E Q U E N T I A L O R I N C I D E N TA L
DAMAGES. The limited warranty set forth above
and these remedies shall extend only to Buyer
and not to any subsequent buyer or user of the
goods. In no event shall Seller's liability for
breach exceed the price paid for by the goods by
Buyer.
TECHNICAL & PRODUCT INFORMATION:
Seller disclaims responsibility for errors or
omissions in any technical or product information
contained in its catalogs or other sales materials.
Buyer is solely responsible for determining if
goods are suitable for purposes intended by
Buyer and its customers and future users.
LIMITED WARRANTY:
Seller warrants that all goods it sells will be
free from material defects in manufacturing and
workmanship by Seller: PROVIDED THIS
LIMITED WARRANTY SHALL EXPIRE ONE
(1) YEAR AFTER SHIPMENT F.O.B. OUR
PLANT (the "Warranty Period") AND
SHALL NOT APPLY:
GOVERNING LAW; EXCLUSIVE
JURISDICTION:
This contract shall be governed by the substantive
laws of New York, without regard to choice
of law principles. The State and Federal
Courts in Nassau County, New York,
shall have the exclusive jurisdiction and
venue to adjudicate rights and duties
under this contract.
(a) unless Seller receives written notice of
the breach of warranty within 30 days after
discovery of the defect or nonconformance and
in any event within the one (1) year Warranty
Period; and
(b) to any goods which have been (i) repaired,
altered or improperly installed, (ii) subject to
improper storage, (iii) damaged during or after
transit, (iv) used or incorporated with or into any
other product, machine or equipment after Buyer
or anyone using the goods has, or reasonably
should have, knowledge of the defect or nonconformance, or (v) manufactured, fabricated to
assembled by anyone other than Seller.
PERIOD OF LIMITATIONS:
An action for breach of this contract, including
breach of the limited warranty set forth above,
or any other action relating to goods shipped by
Seller or ordered by Buyer, must be commenced
within one (1) year after the cause of action
accrued.
MISCELLANEOUS:
All orders placed with Seller after March 31,
2006, constitutes acceptance of these Terms
and Conditions. All conflicting, inconsistent and
additional terms and conditions are rejected
unless contained in writing and signed by an
officer of Seller. Buyer may not assign any rights
or remedies under this contract without Seller's
prior written consent. If any part or provision of
these Terms and Conditions is held to be invalid
or unenforceable, such part or provision shall
be deemed omitted, and that shall not affect the
validity or enforceability of any other part or
provision hereof. These Terms and Conditions
may be found at:
ALL OTHER WARRANTIES, EXPRESSED
OR IMPLIED, INCLUDING IMPLIED
WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR PARTICULAR PURPOSE, ARE
DISCLAIMED.
BUYER'S REMEDIES:
At Sellers option, if it breaches the warranty set
forth above, it may either (a) repair or replace
defective or nonconforming goods or parts or (b)
repay the price it received for goods, whichever
it elects. As a condition precedent to either
remedy, Buyer shall have paid the price of the
goods and made them available for inspection
at Buyer's place or business or returned them
at Seller's request and cost and by the carrier
www.qtcgears.com/eStore/termsofuse.aspx.
VI
Part Number Index
AG0
AG1AG2
AG3AG4AG5AG6AGDL2AGDL2.5AGDL3AGDL3.5AGDL4AGF2
AGF3AGF4AGF5AGF6AN
ARLBB
BG0.8BG1BG1.25BG1.5BG2BG2.5BG3BG4BG5BG6BSR
BSS0
CBXCG1CG1.5CG2CG2.5CG3CG4CG5CG6DB
DM
DR
DS0
DS1DSL0.5DSL0.8DSL1FRCP5GC
KBXKHG1KHG1.5KHG2KHG2.5KHG3KRCPF
KRF
KRG
KRGCP
310
312, 320
322
324
324
326
326
300
302
304
306
308
314
316
316
318
318
286
174
226, 266
328
328
330
330
332
334
336
338
340
342
172
126
364
328
330
332
334
336
338
340
342
266
226
174
122
124
104
106
106
192
352
360
134
136
138
140
142
188
165
162
184
KRGCPD
KRGCPF
KRGD
KRGF
KRHG
KRHGF
KSP
KTSCP
KWG0
KWG1
KWG2
KWG3KWG4KWG5KWG6KWGDL2KWGDL2.5KWGDL3KWGDL3.5KWGDL4KWGDLS2KWGDLS2.5KWGDLS3KWGDLS3.5KWGDLS4LM
LS0
MBSA
MBSB
MBSG
MHP1
MM
MMS
MMSA
MMSB
MMSG
MSGA1MSGA1.5MSGA2MSGA2.5MSGA3MSGA4MSGB1MSGB1.5MSGB2MSGB2.5MSGB3MSGB4NSU1NSU1.5NSU2NSU2.5NSU3PB
PBXPG1
PG2
PG3PM
PN
PR
PRF
PS1PS1.5PS2PS2.5PS3PSA2PSA2.5PSA3PU
SAM
SB
SBS
SBSG
SBY5SBY6SBY8SH
SI
SIR
SM
SMA
SMB
SMC
SMS
SMSG
SN1SN2SN2.5SN3SN4SR
SRCP
SRCPF
SRCPFD
SRF
SRFD
SRGF
SRH
SRO
SROCP
SROS
SRSSRT
SRTB
SS1SS1.5SS10SS2SS2.5SS3SS4SS5SS6SS8SSA1
SSA2
SSA3SSA4SSA5SSAY0.8-../K..
184
184
162
162
176
176
270-275
182
310
312
314
316
316
318
318
300
302
304
306
308
300
302
304
306
308
216
92
240-246
240-246
236
234
216
206
204
204
200
34
36
38
40
42
44
34
36
38
40
42
44
108
110
110
112
112
264
368
344
346
346
224
288
173
VII
173
116
118
118
120
120
118
120
120
114
220
252-260
248, 250
238
258
258
254, 256
144
150
151,169
218
212, 214
212, 214
212
208, 210
202
280
280
282
282
282
166
188
188
188
167
168
164
178
175
192
175
174
350
350
60
62
74
64
66
68
70
72
74
74
76
78
80
80
80
88
SSAY1
SSAY1-../K..
SSCP
SSCPG
SSCPGS
SSG1SSG1.5SSG2SSG2.5SSG3SSG4SSGS
SSR
SSR
SSY0.8SSY1SSY1.25STRCPF
SUB
SUM
SUN
SUR
SURCPF
SURCPFD
SURF
SURFD
SURO
SUS1
SUS2
SUS3SUS4SUSA2
SUSA3SUSA4SUSCP
SUSL0.5SUSL0.8SUSL1SUW1
SUW2
SUW3SV
SVI
SW0.8SW1SW1.25SW1.5SW2SW2.5SW3SW4SW5SW6SWG1
SWG2
SWG3SWG4SWG5SWG6-
86
90
186
184
184
46
48
50
52
54
56
58
127
168
82
82
84
182
262
222
284
170
190
190
170
170
175
94
96
98
98
96
98
98
190
100
102
102
344
346
346
354
355
328
328
330
330
332
334
336
338
340
342
320
322
324
324
326
326
Q420 INDEX 1.
Parallel Axes Gears
PICTORIAL INDEX OF SPUR, HELICAL AND INTERNAL GEARS
MSGA(B) Ground Spur
Gears
SPUR GEARS
SSA Steel Hubless
Spur Gears
m1~4
Page 34
SSY Steel Thin Face Spur
Gears
SSG Ground Spur Gears
Page 46
m1~4
SSAY Steel Hubless,
Thin Face Spur Gears
SSGS Ground Spur
Pinion Shafts
m1.5~3
Page 58
SSAY/K Spur Gears with
Built-In Clamps
SS Steel Spur Gears
m1~10
Page 60
LS Sintered Metal
Spur Gears
New Products
m1~5
Page 76
SUS . SUSA Stainless
Steel Spur Gears
m1~4
Page 94
PS and PSA Plastic Spur
Gears
m1~3
Page 116
m0.8~1.25
Page 82
SUSL Stainless Steel
Fairloc Hub Spur Gears
m0.5~1
Page 100
DS Injection Molded Spur
Gears
m0.5~1
Page 122
KHG Ground Helical
Gears
HELICAL GEARS
INTERNAL GEARS
m1~3
Page 134
m1~1.25
Page 86
DSL Acetal Fairloc Hub
Spur Gears
Page 104
m0.5~1
Page 88
NSU Plastic Spur Gears
with Steel Core
m1~3
Page 108
BB Sintered Metal
Bushings
BSS Brass Spur Gears
Ø 5~8
m0.5~0.8
Page 124
SH Helical Gears
Page 144
m2~3
SI Internal Gears
SIR Ring Gears (Internal)
m1~3
m2~3
Page 150
m0.8~1
Page 151
VIII
Page 126
m0.5~0.8
Page 92
PU Plastic Spur Gears
with Stainless Steel Core
m1~2
Page 114
SSR Steel Ring Gears
(External)
m2~3
Page 127
Contents
Parallel Axes Gears
PICTORIAL INDEX OF RACKS AND CP RACKS
Please request catalogs by e-mail or fax.
KRG(F) Ground Racks
KRGD Ground Racks
SRGF Ground Racks
KRF Racks with
Machined Ends
New Products
RACKS
SR(F) Racks
m1~10
m1~3
Page 162
SRFD Racks with
Bolt Holes
Page 166
m1.5~6
Page 168
SURFD Stainless Steel
Racks
New Products
BSR Brass Racks
m1.5~4
m0.5~1.25
Page 170
SRO Round Racks
m1~6
Page 175
Page 172
SROS Round Racks
m1~3
Page 175
KTSCP Tapered Pinions
STRCPF Tapered Racks
CP RACKS & PINIONS
SRCP(F)(D) CP Racks
CP2.5~20
Page 188
CP5,CP10
Page 182
KRCPF CP Thermal
Refined Racks
CP5,CP10
Page 188
Page 162
m1~3
SSR Corner Racks
(External)
Page 168
m2~3
PR(F) Plastic Racks
Page 173
m1~3
SURO Stainless Steel
Round Racks
Page 175
m1~3
SSCPG(S) CP Ground
Spur Gears
Page 184
CP5,CP10
SUSCP CP Stainless Spur Gears
SURCPF(D) CP Stainless Steels
Racks
New Products
Page 190
CP5,CP10
IX
m1.5~4
Page 164
SIR Corner Racks
(Internal)
m2~3
Page 169
DR Molded Flexible
Racks
m0.8~2
Page 174
KRHG(F) Ground Helical
Racks
m1~3
Page 176
KRGCP(F)(D) CP Ground
Racks
CP5,CP10
Page 184
SROCP CP Round Racks
CP2.5~10
Page 192
m1.5~5
Page 165
SUR(F) Stainless Steel
Racks
m1~4
Page 170
ARL Rack Guide Rails
SRS Rack Clamps
m0.8~2
Page 174
SRH Helical Racks
m2~3
Page 178
SSCP CP Spur Gears
CP2.5~CP20
Page 186
FRCP CP Metal Flexible
Racks
CP5
Page 192
Q420 INDEX 2.
Intersecting Axes Gears
PICTORIAL INDEX OF MITER AND BEVEL GEARS
Nissei KSP Ground Spiral
Miter Gears
MMSG Ground Spiral
Miter Gears
SMSG Ground Spiral
Miter Gears
MMSA(B) Finished Bore
Spiral Miter Gears
New Products
MITER GEARS
MMS Spiral Miter Gears
m2~5
Page 206
SM Miter Gears
m1~8
Page 218
m1.5~6
Page 270
SMS Spiral Miter Gears
m1~8
Page 208
SAM Angular Miter
Gears
m1.5~3
Page 220
MHP High Ratio Hypoid
Gears
Page 200
m2~4
SMA(B)(C) Finished Bore
Miter Gears
Page 212
m1~8
SUM Stainless Steel Miter
Gears
Page 222
m1~3
Nissei KSP Ground
Spiral Bevel Gears
m2~5
Page 202
MM Carburized &
Hardened Miter Gears
m2~5
Page 216
PM Plastic Miter Gears
m1~4
Page 224
m1~10
Page 204
LM Sintered Metal
Miter Gears
m0.8~1.5
Page 216
DM Injection Molded
Miter Gears
m0.5~1.5
Page 226
MBSG Ground Spiral
Bevel Gears
SBSG Ground Spiral
Bevel Gears
m2~4
Gear Ratio 2
m2~4
Gear Ratio 1.5~3
New Products
BEVEL GEARS
m1~1.5
Gear Ratio 15~200 Page 234
m2~5
Gear Ratio1.5~2
MBSA(B) Finished Bore
Spiral Bevel Gears
SBS Spiral Bevel Gears
SB Bevel Gears
m1~6
Gear Ratio 1.5~3
m1~5
Gear Ratio 1.5~4
Page 240
Page 272
Page 236
SB.CB Bevel Gears
Page 238
SBY Bevel Gears
New Products
Page 248
m1~6
Gear Ratio 1.5~4
Page 252
m1~8
Gear Ratio 1.5~4
Page 254
m5~8
Gear Ratio 2~4
Page 254
SB
Bevel Gears & Pinion
■SUBステンレスかさ歯車
Shafts
SUB Stainless Steel
Bevel Gears
PB Plastic Bevel Gears
DB Injection Molded
Bevel Gears
BB Sintered Metal
Bushings
m1.5~3
m1/1.5〜1/3
Gear
Ratio 5
歯数比1/1.5〜1/3
m1.5~3
Gear Ratio 1.5~3
m1~3
Gear Ratio 1.5~3
m 0.5~1
Gear Ratio 2
φ 5~8
Page 260
00頁
Page 262
X
Page 264
Page 266
Page 266
Contents
PICTORIAL INDEX OF SCREW GEARS, WORMS, WORM GEARS
Nonparallel & Nonintersecting
Axes Gears
AND OTHER MISCELLANEOUS PRODUCTS
Please request catalogs by e-mail or fax.
SN Steel Screw Gears
SCREW GEARS
m1~4
Page 280
SUN Stainless Steel
Screw Gears
Page 284
m1~3
AN Aluminum-Bronze
Screw Gears
m1~4
Page 286
PN Plastic Screw Gears
m1.5~3
Page 288
KWGDL, AGDL Duplex
Worms & Worm Wheels
KWGDLS, AGDL
Duplex Worm Shafts &
Worm Wheels
KWG, AG Ground Worm
Shafts & Worm Wheels
KWG, AGF Ground Worm
Shafts & Worm Wheels
WORM GEAR PAIR
m2~4
Reduction Ratio 1/20~1/60
m2~4
Reduction Ratio 1/20~1/60
m0.5~1.5
Reduction Ratio 1/10~1/60
m2~6
Reduction Ratio 1/10~1/60
SWG, AG Ground Worms
& Worm Wheels
SW, BG Worms & Bronze
Worm Wheels
SW, CG Worms & Gray
Iron Worm Wheels
SUW, PG Worms &
Plastic Worm Wheels
m1~6
Reduction Ratio 1/10~1/60
m0.8~6
Reduction Ratio 1/10~1/50
m0.8~6
Reduction Ratio 1/10~1/120
m1~3
Reduction Ratio 1/10~1/50
Page 320
Page 300
Page 328
SRT(B) Pawls & Ratchets
Page 300
Page 328
GC Gear Couplings
Page 310
Page 314
Page 344
SV Involute Spline Shafts
SVI Spline Bushings
KBX Bevel Gearboxes
Model L
OTHER PRODUCTS
CBX Bevel Gearboxes
New Products
Model L
Model T
P2.09~12.56
Page 350
Page 352
m2~2.5
PBX Miniature Bevel
Gearboxes
New Products
Model T
Model L
Speed Ratio 1/1~1/2
Page 362
Speed Ratio 1/1
Model T
Page 366
XI
m1.667
Page 354
Speed Ratio 1/1~1/2
Page 358
How to Use This Catalog
Every page contains all the data necessary for you to select the proper gears.
Contents
This catalog contains the following
information:
● Tabulated dimensions of KHK Standard Stock Gears
● Data for selecting gears and warnings when applicable
● Basic theories of gearing and associated data
● How to order KHK Gears
● Introduction to Kohara Gear Industry Co. Ltd.
<Selection Hints>
● Caution in selecting the mating gears
● Caution in selecting gears based on gear strength
● Unique characteristics of products (such as
availability to perform secondary operations)
● Other points to consider in the selection process.
<Application Hints>
● Caution in performing secondary operations
● Caution in assembling
● Notes on starting operations
● Other points to consider in applications
<Contents of Products Pages>
KHK Stock Gears are categorized into 10 groups
as shown below. At the beginning of each group,
we present an explanation of part numbers,
selection and application hints and other useful
technical data. As a rule, each product series
consists of two facing pages containing product
name, part numbers, dimensions, photograph,
mechanical drawings, cautionary notes if
applicable and helpful hints.
PRODUCT GROUP ICON
6. Miter Gears
2. Helical Gears
7. Bevel Gears
3. Internal Gears
8. Screw Gears
4. Racks
9. Worm gear pair
5. CP Racks & Pinions
PRODUCT NAME
MODULE
LEFT PAGE
Drawing & Configuration
PRODUCT PHOTOGRAPH
It is a representative photograph
of the series. Actual shape may
be different for a particular item.
Please confirm the drawing and
shape as specified in the table.
SUBCATEGORY OF THE SERIES
Module, Pitch, Number of teeth,
Gear ratio, etc.
DIMENSIONAL TABLE
<Catalog numbers>
Please order KHK gears by
specifying their catalog numbers
<Bore>
The bore tolerances are indicated
in the column headings.
INDEX
Tabs are color coded, and series
designations are shown.
■ Product Groups of KHK Stock Gears
1. Spur Gears
SERIES DESIGNATION
TECHNICAL REFERENCES
Some technical information is
introduced at various points in the
catalog.
10. Other Products
XII
NOTES
Contains additional information to
augment the products table. Please read
them before making the final selection
of the products.
Contents of the Q420 Catalog
DRAWINGS, SHAPES
When there is more than
one configuration for the
series, please confirm the
desired shape by checking
the shape column in the
table.
SPECIFICATIONS
Shape
B4
B3
B4
B3
Specifications for spur and helical gears
follow the new JIS standard.
PRODUCT NAME
RIGHT PAGE
The datum reference for secondary
operations.
Shows if secondary operations are possible.
(Red box indicates items on which
secondary operations are not possible.)
—
DIMENSIONAL TABLE
<Backlash>
Indicates the circular linear backlash when the gears are set to the
center distance.
There are some pages where certain dimensions are written below the table.
(e.g., miter, bevel and worm gears)
Calculation of Allowable
torque
The allowable torques shown in the table are
the calculated values according to JGMA.
The calculations assume certain operating
conditions. Therefore, the values should only be
used as a reference.
The assumed conditions are shown on the first
page of each product group (for example, page
27 for spur gears).
TECHNICAL REFERENCES
Significant technical information
is presented at various points in
the catalog.
● KHK Co. reserves the right to make changes in specifications and dimensions without notice.
● The company disclaims responsibility for any error or omission regarding technical and product information published.
● All rights reserved herein and no portion of this catalog may be reproduced without the prior consent in writing of the company.
We post any changes and corrections to the catalog on our Web site(s):
URL http://www.khkgears.co.jp/
URL http://www.qtcgears.com
XIII
QTC Stock Gear Selection Methods
Please refer to this page when you are selecting gears.
Selecting Gears Based on Gear Strength
Step 1
Approximate the type of gear, strength and torque load.
Definition of Bending Strength
Definition of Surface Durability
The allowable bending strength of a gear
is defined as the allowable tangential force
at the pitch circle based on the mutually
allowable root stress of two meshing gears
under load.
The surface durability of a gear is defined as
the allowable tangential force at the pitch circle,
which permits the force to be transmitted safely
without incurring surface failure.
Step 2
Example of the defacement
due to insufficient surface
Make a tentative selection based on the torque load using the KHK catalog or the Web catalog. durability.
Example of the failure due to
insufficient bending strength.
■ The KHK catalog is used for the tentative selection.
Step 3
■ The Web catalog is used for the tentative selection.
After calculating the required strength using the actual conditions of usage, examine the selection made in Step 2.
The formal strength calculation can be performed using the various
formulas.
If the Web catalog is used, the strength can be
easily confirmed.
(2) Equation - Bending Strength
In order to confirm an acceptable safe bending strength, it is
necessary to analyze the applied tangential force at the working
pitch circle, Ft, vs. allowable force, Ftlim. This is stated as:
Ft ≤ Ftlim
(1.4)
It should be noted that the greatest bending stress is at the root of
the flank or base of the dedendum.
Then Equation (1.4) becomes Equation (1.5)
Ft≤ sFlim
(1.5)
Equation (1.6) presents the calculation of Ftlim:
mnb KLKFX 1
Ftlim = sFlim ––––––– (––––––) –––
(kgf) (1.6)
YFYeYb KVKO SF
Equation (1.6) can be converted into stress by Equation (1.7):
YFYeYb KVKO
sF = Ft –––––– (––––––) SF
(kgf/mm2) (1.7)
mn b
KLKFX
XIV
QTC Stock Gear Selection
There are many ways to select gears depending on which parameters are more
important than others such as the strength, size, precision, and speed ratio. As
a guide, we have introduced "Selecting Gears Based on Strength" and "Selecting
Gears Based on Use".
Selecting Gears Based on Use
Example 5: Cost performance
Example 1: High Speed Rotation
For applications requiring noise and vibration reductions in high speed gear
drives, we recommend the ground gears (items with letter G in catalog
numbers). Using helical gears will increase the contact ratio, leading to smoother
transmission.
Example
The more production steps, the higher the cost. For example, the SS series which
goes thru steps of - raw material, turning, gear cutting, and black oxide - has
excellent cost-performance ratio. The Injection Molded Gears and Sintered Gears are
also products with high cost-performance figures due to mass production.
■ MSGA Ground Spur Gears
JIS N5 Class (OLD JIS1)
Overall carburizing
Example
■ SS Steel Spur Gears
■ DS Injection Molded Spur Gears
■ LS Sintered Metal Spur Gears
■ SSG Ground Spur Gears
JIS N7 Class (OLD JIS3)
Tooth surface induction
hardened
Example 2: High Strength (compact design)
Example 6: Availability of Secondary Operations
Generally, the size of gears is proportional to load capacity. To make the design
compact requires the use of alloys (SCM415, SCM440) with heat treating. We
recommend catalog parts that start with letter M or K.
Please note that heat treated items have hard surfaces. While they gain the strength,
they lose the ability of secondary operations to be performed.
Example
■ MSGA Ground Spur Gears
Overall carburizing (Secondary operations
not possible)
■ SSG Ground Spur Gears
Tooth surface Induction hardened
(Secondary operations possible except the
tooth)
■ SS Steel Spur Gears
No heat treatment (Secondary operations
possible)
Example
■ MSGA Ground Spur Gears
SCM415 overall carburizing
■ KHG Ground Helical Gears
Tooth surface induction
hardened
Example 7: High Reduction Ratios
Example 3: Backlash Considerations
In order to minimize the backlash, use high precision parts with ability to adjust center
distances. KHK carries, as standard products, items with ability to adjust backlash such
as Tapered Racks and Pinions and Duplex Worms and Worm Wheels.
We recommend the use of Worm Gear Pair or High Ratio Hypoid Gears.
It is also possible to obtain high reduction ratios by forming planetary gear
systems using spur and internal gears.
Example
■ Worm Gear Reduction Ratios
1/10、1/15、1/20、1/30、1/40
1/50、1/60、1/80、1/100、1/120
Example
■ Tapered Racks & Pinions
KTSCP, STRCPF
■ High Ratio Hypoid Gear Reduction Ratios
1/15、1/20、1/30、1/45、1/60
1/90、1/120、1/180、1/200
■ Duplex Worms, Worm Wheels
KWGDL(S), AGDL
Example 4: Calculating and Positioning
Example 8: Rust Prevention
It is very convenient to use CP Racks and Pinions for positioning applications. We
recommend using ground gears for use in calculating to reduce pitch errors.
Stainless steel and plastic material are suitable where rust will cause problems such
as in food and chemical processing equipment. KHK uses these materials in the
manufacture of many kinds of spur, rack, miter, bevel, screw and worm gears.
Example
■ SSCPG CP Ground Spur Pinions
SSCPG10-20
JIS N7 Class (JIS B1702-1;1998)
■ KRGCP CP Ground Racks
KRGCP10-500
KHK R 001 Grade 1
XV
Quality Transmission Components
125 Railroad Avenue • Garden City Park • New York 11040 USA www.qtcgears.com • E-mail: qtcsupport@qtcgears.com
The following pages detail KHK's commitment to
supplying the world with the highest quality metric
gearing. These pages detail their devotion to quality
and to the environment as well as showcase their
production capacity and their commitment to innovation.
370
KHK Information
We are working hard to upgrade our technological prowess
to enable us to produce highly reliable products.
We are waging a group-wide effort to provide our customers with quality products.
With this in mind, we have obtained two different ISO quality management certifications, both ISO 9001 and ISO 14001.
Through effective use of the ISO system we are trying hard to develop our technological skills and increase our productivity,
while minimizing the adverse impact on the environment.
We sincerely hope that our business relationship with our customers will continue well into the future.
Company profile
Our line of business
● Manufacture and sale of KHK stock gears
● Manufacture of high-precision custom gears
Name of Co.:
Founded:
Capital:
President:
Kohara Gear Industry Co., Ltd.
May, 1935
99,000,000 Yen
Toshiharu Kohara
Number of employees :
200 persons
Our bankers:
Our membership status
● Japan Gear Manufacturers Association
Saitama Resona Bank, Limited Kawaguchi Branch
● Saitama-ken Keiei Gorika Kyokai
Scope of
business:
● Ultra-high precision gear cutting
Sumitomo Mitsui Banking Corporation Kawaguchi Branch
Designing, manufacturing and selling KHK stock gears
(Saitama prefecture Industrial Rationalization Association)
● Kawaguchi-shi Kikai Kogyo Kyodo Kumiai
Manufacturing and selling of custom gears
(Kawaguchi Industrial Machinery Association)
Other business incidental to the above two.
● Kawaguchi Shoko Kaigisho
Address:
Head office / factory 13-17 Nakacho, Kawaguchi-shi
Postal code: 332-0022
Tel No.: 048(255)4871 Fax No.: 048(256)2269
Osaka office Tanimachi Yuetsukan building, 6-22 Tanimachi
5-chome, Chuo-ku, Osaka
Postal code 540-0012
Tel No.06-6763-0641 Fax No.06-6764-7445
Nagoya office
Louvre Building, 3-96 Issha, Meito-ku, Nagoya
Postal code 465-0093
Tel No.052-704-1681 Fax No.052-704-1803
(Kawaguchi Chamber of Commerce & Industry)
Affiliated companies
KHK CO., LTD.
● Export of gears and transmission components
KHK NODA CO., LTD.
● Production of Gears
● Production of Transmission Components
E:mail:kohara@khkgears.co.jp
URL http://www.khkgears.co.jp/
371
KHK integrated management system
We are focusing all our energies on supplying highly reliable products to our customers.
Under this system we are moving ahead to manufacture top quality products to meet our customers’ demands. We take care to carry out environmentally sound practices. Also,
“Kaizen” or “continual improvement” is being used to help achieve these goals.
*The processes V P D C appearing here are in accordance with methodology known as “Vision – Plan – Do – Check” cycle.
We are working hard to provide quality products to all of our customers. With this in mind, we have obtained two
quality management certifications, ISO 9001 and ISO 14001. We employ the methodology “Vision-Plan-Do-Check”
cycle so that we can continue our improvement and satisfy our customers’ demands.
372
KHK’s policy toward environmental issues
We are taking every possible measure to minimize any adverse impact on the environment.
We have MSDS or Material Safety
Data Sheets available for all
materials used by KHK. Copies are
available upon request.
Every detail concerning the materials used by
KHK is recorded in MSDS Data Base. These
materials include metals, rust-prevention oil,
packing materials etc.
MSDS = Material Safety Data Sheets
Press ahead with employing “dry-cut” gear
cutting methods.
At each stage of KHK operation including designing,
manufacturing and selling, we make every effort to reduce the
impact on the environment. And we take care in our activities
to promote industrial safety, quality improvement and cost
effectiveness.
Put a cover on each machine.
Results: Prevents the scattering of cutting oil.
Reduces air and soil pollution. Minimizes equipment
maintenance. Reduces the consumption of oil. Cuts
the cost of cleaning. Reduces the risk of slipping and
falling.
Use of electrostatic liquid cleaner to clean
gear cutting oil.
Results: Reduces the consumption of
lubricants. Prevents machinery failure.
Results: Reduces air pollution due to
vaporized cutting oils. Saves natural
resources. Cuts production time.
Reuse corrugated plastic board.
Results: Recycling of resources.
Development of special tooth profile for
racks.
Results: Reduction of noise.
When gears and packing materials have served their purpose and become scrap, please dispose of them in an ecologically satisfactory manner.
■ Metals
■ Nylon
■ Corrugated cardboard
■ Carton boxes
■ Vinyl / Plastic materials
Recycling
Industrial waste
Recycling
Recycling
Industrial waste
373
KHK nationwide network for customer services
We insist on high standards for customer service.
Raising the quality of service to our customers is our goal.
To achieve customer satisfaction, our Kawaguchi head office, together with our sales offices in Osaka and Nagoya, are
trying to listen to the voice of our customers to get feedback on what changes or improvements should be made to our
products.
KHK Osaka sales office
We are exhibiting our products at
many major trade shows.
In an attempt to facilitate communication between our
customers/users and ourselves, we are trying to show
our products wherever possible at World Trade Shows
and/or major exhibitions worldwide.
KHK Nagoya sales office.
*Please visit our website for information
concerning our exhibition schedule.
URL http://www.khkgears.co.jp/
To ensure delivery in good condition
our products are individually
packaged.
We provide many items as tools for sales promotion.
Our integrated catalog KHK3009 contains up-to-date
information including exceptional technical support.
Our website also offers the same information as the
print catalog KHK3009.
In order to purchase KHK stock gears, please contact the local distributor in your area.
Please note that all of KHK products are sold through our distributors.
374
KHK global network
Our products are available at various places in the world through our overseas representatives.
To meet the growing demand of our customers and with the increasing globalization of the world economy, we have expanded our sales network in major cities around the world.
TURKEY
PURGON ENGINEERING PTY LTD.
50 Potter Street, P.O.Box 126 Craigieburn 3064 Melbourne Australia
PHONE:61-3-93056199 FAX:61-3-93056588
E-mail:engineering@purgon.com.au
URL:http://www.purgon.com.au /
久米商事株式會社
KUME SHOJI CO., LTD.
Shanghai branch
中国上海市九江路 333 号金融廣場 2707 室 200001
Room No.2707, Finance Square, No.333 JiuJiand Road, Shanghai, China
PHONE:021-63741680~63741682 FAX:021-63741679
E-mail:sales@kume-shoji.com
URL:http://www.kume-shoji.com/
Beijing branch
中國北京市朝陽區延靜裏中街3號院嘉泰國際大廈428 室
Room No.428, Jiatai Guoji Daxia, No.3 Gate, Yanjingli Zhongjie
Chaoyang District, Beijing, China
東莞市源發傳動器材有限公司
DongGuan City Yuen Fat Steel Gear Co.,Ltd.
中國廣東省東莞市長安鎮上沙 S358 省道 1238 號
No.1238,S358 ShangSha First Industrial Zone, Chang'An
Town, DongGuanCity, GuangDong, China 523701
PHONE:86-769-82284991 FAX:86-769-82284992
E-mail:sales@yfgears.cn
URL:http://www.yfgears.cn/
BONDY LMT A/S
Hassellunden 14 DK-2765 Smorum Denmark
PHONE:+45-7015-1414 FAX:+45-4464-1416
E-mail:lmttransmission@lmttransmission.dk
URL:http://www.lmttransmision.dk/
R.A.RODRIGUEZ (U.K.) LTD.
28 Campus Five, Letchworth Business Park,
Letchworth, Herts. SG6 2JF England
PHONE:44-1462-670044 FAX:44-1462-670880
E-mail:info@raruk.com
URL:http://www.rarodriguez.co.uk/
OY MEKANEX AB Eesti filiaal
Peterburi tee 46 EE11415 TALLINN Estonia
PHONE:+372-6139844 FAX:+372-6139866
E-mail:info@mekanex.ee
URL: http://www.mekanex.ee/
OY MEKANEX AB
PL 30 Fin-08501 Lohja Finland
PHONE:+358-19-32831 FAX:+358-19-383803
E-mail:info@mekanex.fi
URL:http://www.mekanex.fi/
Rodriguez GmbH
Ernst-Abbe-Str.20 D-52249 Eschweiler Germany
PHONE:4902403-780-0 FAX:4902403-780-50
E-mail:info@rodriguez.de
URL:http://www.rodriguez.de/
源發鋼牙有限公司
YUEN FAT STEEL GEAR CO., LTD.
香港九龍旺角廣東道 979 號地下
Ground Floor, 979 Canton Road, Mongkok, Kowloon, Hong Kong
PHONE:852-2782-0963 FAX:852-2782-0961
E-mail:info@yuenfatgears.com
URL:http://www.yuenfatgears.com/
AMCATS PVT., LTD.
C-111A, Punit Industrial Estate,D-10/11, Thane Belapur Road,
Turbhe, Navi Mumbai, India - 400705
PHONE:91-22-27635005 FAX:91-22-27635007
E-mail:mailbox@amcats.com
URL:http://www.amcats.com/
MEDITAL HI-TECH (1992) LTD.
7, Leshem St., P.O.B. 7772 PETACH-TIKVA Israel
PHONE:972-3-9233323 FAX:972-3-9231666
E-mail:medital@medital.co.il
URL:http://www.medital.co.il/
CHIA HIAP SENG HARDWARE CO.
50 Ubi Ave. 3, FRONTIER, #01-22 Singapore 408866
PHONE:65-6547-8851 FAX:65-6547-8853
E-mail: chiahiapsenghardware@yahoo.com.sg
URL: http://www.chiahiapsenghardware.com/
Lindis, s.l.
Polígono Golparc parcela 34-38, 25241 Golmés (Lleida) Spain
PHONE:34-973-71-18-84 FAX:34-973-71-18-09
E-mail: lindis@lindis.com
URL: http://www.lindis.com/
MEKANEX MASKIN AB
Box 2208 SE-169 02 solna Dalvägen Sweden
PHONE:46-8-7059660 FAX:46-8-270687
E-mail:info@mekanex.se
URL:http://www.mekanex.se/
H.FROHLICH AG.
Zurichstrasse 148 CH-8700 Kusnacht, Switzerland
PHONE:41-1-9101622 FAX:41-1-9106344
E-mail:info@h-froehlich-ag.ch
URL:http://www.h-froehlich-ag.ch/
昭源企業有限公司
ALL MERIT ENTERPRISE CO., LTD.
台北縣汐止市福德一路 392 巷 42 弄 2 號
No.2, Alley42, Lane392, Fude 1st Rd. Shijr City, Taipei, Taiwan 221
PHONE:886-2-2694-0062 FAX:886-2-2694-7061
E-mail:mail@amx.com.tw
URL:http://www.amx.com.tw/
PHONE:86-10-6586-2841 FAX:86-10-6586-3538
TOHO KOREA CO., LTD.
Room No.206 Hanra Sigma Park, 276-1 Seohyun-dong
Bundang-ku, Seongnam-shi, Kyoungki-do, 463-824 Korea
PHONE:82-31-781-8856 FAX:82-31-781-8850
E-mail:kjlim@tohokorea.co.kr
URL:http://www.tohokorea.co.kr/
SAECO BEARINGS & TRANSMISSION LTD.
88 Hastie Ave., Mangere P.O. Box 22256 Otahuhu, New Zealand,
GST 78-6366-53
PHONE:0064-9-634-7540 FAX:0064-9-634-7552
E-mail:cameron.caesar@saeco.co.nz
URL:http://www.saeco.co.nz/
NAMSAE MILLENNIUM CO., LTD.
95/57 Moo.8 Nakniwas Road, Khwaeng Ladprao, Khet Ladprao BKK.
Thailand, 10230
PHONE:02-530-3777 FAX:02-530-0777
E-mail:namsae@namsaemillennium.com
URL:http://www.namsaemillennium.com/
POLYMAK
Perpa Ticaret Merkezi A-Blok, Kat:11 NO:1425 Sisli-ISTANBUL Turkey
PHONE:90-212-210-43-46 FAX:90-212-210-43-46
E-mail:polymak@superonline.com
URL:http://polymak.com/
QUALITY TRANSMISSION COMPONENTS
125 Railroad Avenue, Garden City Park, New York 11040-5016, U.S.A.
PHONE:516-437-6700 FAX:516-328-3343
E-mail:qtcsupport@qtcgears.com
URL:http://www.qtcgears.com/
To find information on distributors in each
country, please visit our web site.
http://www.khkgears.co.jp/en/
375
※ Countries are listed in alphabetical order.
KHK production system
It is our intention that we stay at the leading edge of gear technology.
We are always trying to adopt cutting
edge gear manufacturing systems in
order to make quality products and to
satisfy the demands of our customers.
CNC Rack Grinding Machine (NRG-100)
A view of KHK Noda
CNC Rack Cutting Machine (NR-18S)
376
KHK production system
At KHK Noda all the manufacturing processes are computerized, which allows for the timely
and economical procurement of materials and scheduling of all manufacturing steps.
Quality assurance
At KHK Noda, the leading measuring instruments
such as a Carl Zeiss 3-D Coordinate Measuring
Machine and a Klingelnberg Single Flank Worm
Gear Rolling Tester are used to test our products
to ensure that they meet our customers’ quality
requirements.
The KHK Noda quality control system includes the
requirement that at each step in the manufacturing
process, the part is inspected to verify that it meets
CNC Lathe Line (MW-200G)
CNC Straight Bevel Coniflex Generator (No.104CNC)
CNC Worm Grinding Machine (HSS-350)
CNC Dry Cut Gear Hobbing Machine (KN-151)
CNC Dry Cut Gear Hobbing Machine (N60)
Precision CNC Lathe (J24G)
Compact CNC Vertical Grinding Machine (IGV-3NT)
377
all of specifications detailed on the production
drawing.
Stainless Steel Fairloc Hub Spur Gears
SSAY Spur Gears with Built-In Clamps
How does the K-Clamp work ?
Hexagonal Socket Head Screw
Crescent Shaped
Pressure Wedge
Shaft
Acetal Fairloc Hub Spur Gears
KHG Ground Helical Gears
Normal module
Transverse module
Tapered Pinion
Moving the pinion axially by 1mm
changes the backlash by 0.05mm.
Tapered
Rack
KWGDL(S).AGDL
Duplex Worms and Worm Wheels
Reference tooth
Moving the worm in the direction of the arrow causes the
backlash to decrease.
CP Racks & Pinions
Movement of one cycle of CP10-30 pinion on
Cp rack vs. SS3-30 (m3) on m3 rack
One turn
CP10=300mm
m 3=282.74mm
1/2 turn
CP10=150mm
m 3=141.37mm
Difference between
CP10 and m3
Pitch
CP10=10mm
m 3=9.425mm
SSR/SIR Corner Racks
DR Molded Flexible Racks
MHP High Ratio Hypoid Gears
SRT (B) Pawls and Ratchets
GC Gear Couplings
KBX Bevel Boxes
CBX Bevel Boxes
New Products
PBX Mini-Bevel Gear Boxes
New Products