KPSA3-45J28 is a plastic spur gear in the KPSA series with a module of 3, 28 teeth, and a bore size of 8 mm, fitted with a keyway of 8 mm width by 3.3 mm depth. The gear is made of MC901 nylon, has a pressure angle of 20°, and conforms to JIS Grade N9 (JIS B1702-1:1998) precision standards. The pitch diameter is 84 mm, the outside diameter is 90 mm, and the face width is 30 mm. The allowable torque is 46.3 N·mm, and the weight is 0.48 kg. The keyway follows JIS B1301 Js9 tolerance. For high-load, high-temperature, or reverse-motion applications, a steel hub is recommended for secure shaft attachment.
Module 3, 45 Tooth Nylon Hubless Spur Gear with 28mm Finished Bore
Our plastic spur gears are available in a variety of materials, including:
With a variety of fastening styles, including:
You May Also Need:
Shafts
Bearings
Couplings
For custom components or modifications to a standard part, call us or submit an RFQ.
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Design of Plastic Gears and General Considerations of Plastic Gearing
How to Achieve Optimum Performance in a Miniature Gear Train
| QTC METRIC GEARS | Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|---|
| Product Category | Gears | Gears |
| Product Number | KPSA3-45J28 | KPSA3-45J28 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 45 Tooth Nylon Hubless Spur Gear with 28mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 45 | 45 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / No Insert |
