Spur Gears
Helical Gears
Internal Gears
Racks
CP Racks & Pinion
Miter Gears
Bevel Gears
Screw Gears
Worm Gears
Gearbox
Other Products
Ground Spur Gears
(MSGA·MSGB)
Have excellent strength and wear resistance which allow your designs to be more compact.
Ground Spur Pinion Shafts
(SSGS)
Ground shaft pinions that allow modification of shafts to fit your bearings.
Ground Spur Gears
(SSG)
Although it has quenching treatment on tooth area, secondary operation can be added. Completed products for J series are also available.
[NOTE1] Tooth areas, where size is less than 0.8 module, without quenching treatment.
Ground Spur Gears
(SSAG)
Spur Pinion Shafts
(SSS)
For SS series, Shaft-Integrated Gears with a small number of teeth(10 to 13 teeth) are available.
[NOTE1] SA-shaped products with module of 0.5 to 1.0, without material thermal refinement treatment.
[NOTE2] Product accuracy class having a module less than 0.8 corresponds to 'equivalent' as shown in the table.
Steel.spur Gears
(SS)
We have a wide range of applicable products at reasonable price, in selection of modules and tooth numbers etc. Completed products for J series are also available.
[NOTE1] Product accuracy class having a module less than 0.8 corresponds to 'equivalent' as shown in the table.
Steel, Hubless Spur Gears
(SSA)
Hubless gears for lighter and more compact applications. Completed products for J series are also available.
Steel, Thin Face Spur Gears
(SSY)
Narrower face gears for light-duty applications.
[NOTE1] Product accuracy class having a module less than 0.8 corresponds to 'equivalent' as shown in the table.
Steel, Hubless, Thin Face
Spur Gears (SSAY)
Hubless gears for lighter and more compact applications.
Sintered Metal Spur Gears
(LS)
Low cost due to elimination of machining and reduction in wasted material.
[NOTE1] Product accuracy class having a module less than 0.8 corresponds to 'equivalent' as shown in the table.
Stainless, Steel, Spur Gears
(SUS SUSA)
Stainless steel gears for more rust-resistant gears.Completed products for J series are also available.
F-loc Hub Gears
(SUSF)
Smaller module gears which clamp to the shafts without any keys or set screws.
[NOTE1] Product accuracy class having a module less than 0.8 corresponds to 'equivalent' as shown in the table.
F-loc Hub Acetai
Spur Gears (DSF)
These rust-resistant gears can be clamped to the shafts without any keys or set screws.
[NOTE1] Product accuracy class having a module less than 0.8 corresponds to 'equivalent' as shown in the table.
Plastic Spur Gears
with Steel Core (NSU)
Nylon teeth with steel hubs that can have keyways and set screws added. Completed products for J series are also available.
Plastic Spur with Stainless
Stainless Steel Core (PU)
Nylon teeth with stainless steel hubs for rust-resistance. Completed products for J series are also available.
Plastic Spur Gears
(PS PSA)
Possible to operate without lubrication. Suitable for food processing machines.Completed products for J series are also available.
Injection Molded Spur Gears
(DS)
Low cost, mass-produced products suitable for light duty office machines.
[NOTE1] Product accuracy class having a module less than 0.8 corresponds to 'equivalent' as shown in the table.
Brass Spur Gears
(BSS)
Secondary Operations
[NOTE1] Product accuracy class having a module less than 0.8 corresponds to 'equivalent' as shown in the table.
Steel Ring Gears
(Spur Gears) (SSR)
Allows large gear ratios. Can also be used as segment gears and corner racks.
KHK Stock Gears [Spur Gears]
List
Characteristics
   precaution    
 
KHK Technical Information

Catalog No. Module Material Heat treatment Tooth surface finish Precision
JIS B 1702-1:1998
Secondary
Operations
NOTE 4
Features
MSGA・MSGB 1~4 SCM415 Carburized Ground N5 × Have excellent strength and wear resistance which allow your designs to be more compact.
SSGS 1.5~3 S45C Thermal refining and teeth induction hardened Ground N7 Ground shaft pinions that allow modification of shafts to fit your bearings.
SSG 0.5~6 S45C Teeth Induction Hardened
NOTE 1
GroundN7 Although it has quenching treatment on tooth area, secondary operation can be added. Finished products for J series are also available.
SSS 0.5~3 S45C Thermal refining
NOTE 2
Hobbed N8 NOTE 3 For SS series, Shaft-Integrated Gears with a small number of teeth(10 to 13 teeth) are available.
SS 0.5~10 S45C Hobbed N8 NOTE 3 We have a wide range of applicable products at reasonable price, in selection of modules and tooth numbers etc. Completed products for J series are also available.
SSA 1~5 S45C Hobbed N8 Hubless gears for lighter and more compact applications.
SSY 0.8~1 S45C Hobbed N8 NOTE 3 Narrower face gears for light-duty applications.
SSAY 1 S45C Hobbed N8 Hubless gears for lighter and more compact applications.
SSAY/K 0.8~1 S45C Hobbed N8 NOTE 3 Compact sized gears that can be easily attached on a shaft without a hub.
LS 0.5~0.8 SMF5040(Equiv. to S45C) Sintered N8 NOTE 3 Low cost due to elimination of machining and reduction in wasted material.
SUS・SUSA 1~4 SUS303 Hobbed N8 Stainless steel gears for more rust-resistant gears. Finished products for J series are also available.
SUSL 0.5~1 SUS303 Hobbed N8 NOTE 3 Fine-pitch gears, with rust resistance, enabled to clamp to the shafts without any keys or set screws.
DSL 0.5~1 Acetal(SUS303) Hobbed N10 NOTE 3 Fine-pitch gears can be used without lubrication, easily clamped to the shafts without any keys or set screws.
NSU 1~3 MC602ST(S45C) Hobbed N9 Nylon teeth with steel hubs that can have keyways and set screws added.
PU 1~2 MC901(SUS303) Hobbed N9 Nylon teeth with stainless steel hubs for rust-resistance.
PS・PSA 1~3 MC901 Hobbed N9 Possible to operate without lubrication. Suitable for food processing machines. Finished products for J series are also available.
DS 0.5~1 Duracon
(M90-44)
Injection molded N12 NOTE 3 Low cost, mass-produced products suitable for light duty office machines.
BSS 0.5~1 Free-cutting Brass
(C3604)
Hobbed N8 NOTE 3 Small module brass spur gears suitable for mating with DS gears.
SSR 2~3 S45C Hobbed N9 Allows large gear ratios. Can also be used as segment gears and corner racks.
【NOTE1】 Tooth areas, where size is less than 0.8 module, without quenching treatment.Hardness level of gear surface ranges from 225HB to 260HB.
【NOTE2】 SA-shaped products with module of 0.5 to 1.0, without material thermal refinement treatment.
【NOTE3】 Product accuracy class having a module less than 0.8 corresponds to 'equivalent' as shown in the table.
【NOTE4】 ○Possible    △Partly possible ×Not possible

By chamfering the corners of the top land, gear noise is reduced, and the chances of damage due to handling and transportation are decreased. All KHK gears larger than m1.5 have their teeth chamfered.
Black colored products are KHK stock gears that have black oxide coating for rust resistance; this ‘blackness’ is a product characteristic of KHK stock gears.




Copyright (C) 1996 KOHARA GEAR INDUSTRY CO.,LTD.
All Rights Reserved.