KSSG3-40J32 is a ground spur gear in the J Series, module 3, with 40 teeth and a 32 mm finished bore diameter. It features a 20° pressure angle, standard full-depth teeth, and is made from S45C steel with induction-hardened tooth surfaces hardened to 50~60 HRC. The gear meets JIS grade N7 (JIS B1702-1:1998) precision standards. It has a pitch diameter of 120 mm, outside diameter of 126 mm, face width of 30 mm, and total length of 50 mm. The keyway is 10 mm wide by 3.3 mm deep, sized for an M8 set screw. Backlash is specified as 0.14~0.24 mm. Secondary operations on the tooth area are prohibited due to induction hardening. A set screw is included with all variants featuring a tapped hole.
Module 3, 40 Tooth Ground Steel Spur Gear with 32mm Finished Bore
Inch Gears: AGMA 12, 10, 9, and 8
Available Pitches: 120 thru 16
Pressure Angles: 20° and 14.5°
Metric Gears: ISO 5 thru 9
Available Modules: 0.3 thru 3
Pressure Angles: 20° and 14.5°
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Elements of Metric Gear Technology
How to Achieve Optimum Performance in a Miniature Gear Train
You May Also Need:
Shafts
Bearings
Couplings
Our metal spur gears are available in a variety of materials, including:
With a variety of fastening styles, including:
| QTC METRIC GEARS | Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|---|
| Product Category | Gears | Gears |
| Product Number | KSSG3-40J32 | KSSG3-40J32 |
| Product Name | Metal Spur Gears (metric) | Module 3, 40 Tooth Ground Steel Spur Gear with 32mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 40 | 40 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Hardened; Hardened Carbon Steel |
