KPSA3-40J20 is a plastic spur gear from the KPSA3 series with a module of 3, 20 teeth, a pitch diameter of 60 mm, an outside diameter of 66 mm, a face width of 30 mm, and a keyway of 6 mm width by 2.8 mm depth. The gear is made of MC901 nylon, has a 20° pressure angle, and meets JIS grade N9 precision (JIS B1702-1:1998). The allowable torque is 0.39 N·m (0.39 kgf·m). It is designed for light-load applications and may require a steel hub for secure shaft mounting. Dimensional stability is affected by temperature and humidity variations. Keyways comply with JIS B1301, Js9 tolerance.
Module 3, 40 Tooth Nylon Hubless Spur Gear with 20mm 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.
Request for Quote
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 | KPSA3-40J20 | KPSA3-40J20 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 40 Tooth Nylon Hubless Spur Gear with 20mm 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 |
