KNSU2.5-28 is a plastic spur gear with a steel core, module 2.5, 28 teeth, and a 40 mm bore diameter. It has a pitch diameter of 70 mm, outside diameter of 75 mm, face width of 25 mm, and total length of 40 mm. The gear is made of MC602ST nylon fused to an S45C steel core using a diamond-knurled surface technique for high holding strength. It meets JIS grade N9 precision standards (JIS B1702-1:1998), has a 20° pressure angle, and standard full-depth teeth. The allowable torque is 17.7 N·m (1.80 kgf·m), with radial backlash of 0~0.44 mm and weight of 0.44 kg. Dimensional stability is maintained across temperature ranges up to 140°C, and the design eliminates the need for mechanical fasteners.
Module 2.5, 28 Tooth Nylon Steel Core Spur Gear with Finished 16mm 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 | KNSU2.5-28J16 | KNSU2.5-28J16 |
| Product Name | Plastic Spur Gears (metric) | Module 2.5, 28 Tooth Nylon Steel Core Spur Gear with Finished 16mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 28 | 28 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
