KPSA3-48J40 is a plastic spur gear in the KPSA series, with a module of 3, 40 teeth, and a bore diameter of 12 mm, designed for metric applications. It is manufactured from MC901 nylon, features a standard full-depth tooth profile with a 20° pressure angle, and meets JIS grade N9 precision standards (JIS B1702-1:1998). The gear has a face width of 30 mm, an outside diameter of 150 mm, and a keyway of 12 mm wide by 3.3 mm deep, per JIS B1301 Js9 tolerance. The allowable torque is 0.53 N·m, and the mass is 0.53 kg. It requires a steel hub for secure mounting under high load or temperature conditions.
Module 3, 48 Tooth Nylon Hubless Spur Gear with 40mm 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 | KPSA3-48J40 | KPSA3-48J40 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 48 Tooth Nylon Hubless Spur Gear with 40mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 48 | 48 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / No Insert |
