KNSU2.5-25 is a plastic spur gear with a steel core, module 2.5, 25 teeth, and a plain bore. It has a pitch diameter of 62.5 mm, outside diameter of 67.5 mm, face width of 25 mm, hub width of 15 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 process for high bonding strength. It conforms to JIS grade N9 precision (JIS B1702-1: 1998) with a 20° pressure angle and standard full-depth teeth. The allowable torque is 15.3 N·m (1.56 kgf·m), with a backlash range of 0 to 0.46 mm and a weight of 0.33 kg. The design provides dimensional stability across wide temperature ranges, including operation up to 140°C.
Module 2.5, 25 Tooth Nylon Steel Core Spur Gear with Plain 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 | KNSU2.5-25 | KNSU2.5-25 |
| Product Name | Plastic Spur Gears (metric) | Module 2.5, 25 Tooth Nylon Steel Core Spur Gear with Plain Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 25 | 25 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
