KPSA2.5-55J28 is a plastic spur gear with a module of 2.5, 28 teeth, and a 28 mm bore, featuring a keyway of 8 mm width by 3.3 mm depth. It is made of MC901 material, meets JIS grade N9 precision (JIS B1702-1:1998), and has a pressure angle of 20°. The gear has a pitch diameter of 70 mm, an outside diameter of 75 mm, a face width of 25 mm, and an allowable torque of 0.42 N·m. Backlash is specified as 0 to 0.48 mm, and the weight is 0.42 kg. The gear design requires a steel hub for secure shaft attachment under high temperature, high load, or reversing torque conditions.
Module 2.5, 55 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 | KPSA2.5-55J28 | KPSA2.5-55J28 |
| Product Name | Plastic Spur Gears (metric) | Module 2.5, 55 Tooth Nylon Hubless Spur Gear with 28mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 55 | 55 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / No Insert |
