KPSA3-40J25 is a plastic spur gear in the KPSA series, module 3, with 25 teeth, a 25 mm bore, and a 10 mm face width. It is made of MC901 nylon, has a 20° pressure angle, standard full-depth teeth, and JIS grade N9 precision. The gear includes a keyway sized 8 mm wide by 3.3 mm deep, per JIS B1301 Js9 tolerance. The allowable torque is 30.1 N·mm (3.07 kgf·mm). Dimensional stability is affected by temperature and humidity, and operation without lubrication is not recommended. Steel hubs are recommended for secure shaft mounting under high load, temperature variability, or reverse impact conditions.
Module 3, 40 Tooth Nylon Hubless Spur Gear with 25mm 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 | KPSA3-40J25 | KPSA3-40J25 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 40 Tooth Nylon Hubless Spur Gear with 25mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 40 | 40 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / No Insert |
