KSS2-40J25 is a module 2, 40-tooth steel spur gear with a 25 mm finished bore, designed for use with metric shafts. The gear has a pressure angle of 20°, standard full-depth teeth, and is made of S45C steel with a tooth hardness of less than 194 HB. It meets JIS grade N8 precision standards (JIS B1702-1:1998). The part includes a 2.8 mm keyway according to JIS B1301, Js 9 tolerance, and uses a 5 mm set screw. Backlash is specified as 0.18 to 0.36 mm. The gear has a width of 5 mm and weighs 0.85 kg. Secondary operations that reduce tooth width are not recommended, as they affect precision and strength.
Module 2, 40 Tooth Mild Steel Spur Gear with 25mm 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 | KSS2-40J25 | KSS2-40J25 |
| Product Name | Metal Spur Gears (metric) | Module 2, 40 Tooth Mild Steel Spur Gear with 25mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 40 | 40 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Carbon Steel |
