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"Easy" Gear Selection Screen

- Choose a gear by pitch, # of teeth, or bore size.
- 2D/3D Drawings Available
- PDF Catalog Available
- Strength Calculation Available

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Ring Gears

Ring Gears

ring gears

As the name implies these gears have ring shapes.
When making ring gears, it is important to properly control the deformation caused by their shapes in order to maintain appropriate gear accuracy.

As standard catalog gears, KHK produces and markets ring gears with outer gears (spur gears) and ring gears with inner gears which are often used in planetary gear mechanisms.
In addition, we also produce custom gears to meet user requirements.

As shown below, KHK carries, as the standard catalog items, ring gears in S45C, module 0.5-3, number of teeth 50-200.
It is possible to apply secondary operations on all these ring gears.

Steel Ring Gears (Spur Gears)

SSR

Steel Ring Gears (Spur Gears)

Module : 2 – 3
Material : S45C
Hardening : None
Tooth finish : Cut (non-ground)
Grade : JIS N9

Available in large gear ratios – can be used as segment gear by cutting

Click Here to Select Spur Gears
SI internal gear

SI

Steel Internal Gears

Module : 0.5 – 3
Material : S45C
Hardening : None
Tooth finish : Cut (no grinding)
Grade : JIS N8

A popular type of internal gear, low cost and suitable for many applications.

Click Here to Select Internal Gears
SIR internal gear

SIR

Internal Ring Gears

Module : 2 – 3
Material : S45C
Hardening : None
Tooth finish : Cut (no grinding)
Grade : JIS N9

Large in size and number of teeth. Can be used as segment gears by cutting.

Click Here to Select Internal Gears
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