KSS3-40J45 is a steel spur gear in the KSS3 series with a module of 3, 45 teeth, and a 14 mm x 3.8 mm keyway, designed for metric applications. It has a 20° pressure angle, standard full-depth teeth, and is made from S45C steel with a hardness of less than 194HB. Precision complies with JIS grade N8 (JIS B1702-1:1998). The gear has a bore of 45 mm, an outside diameter of 141 mm, and a thickness of 30 mm. The allowable torque is 2.66 N·m under assumed usage conditions, with a theoretical backlash range of 0.20~0.44 mm. The product includes a set screw for the tapped hole and is marked with ▲ due to counterboring. Secondary operations that narrow tooth width are discouraged to preserve strength and precision.
Module 3, 40 Tooth Mild Steel Spur Gear with 45mm 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 | KSS3-40J45 | KSS3-40J45 |
| Product Name | Metal Spur Gears (metric) | Module 3, 40 Tooth Mild Steel Spur Gear with 45mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 40 | 40 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Carbon Steel |
