KNSU3-25 is a plastic spur gear with a steel core, module 3, 25 teeth, and a 45 mm bore diameter. It has a pitch diameter of 75 mm, outside diameter of 81 mm, face width of 30 mm, hub width of 17 mm, and total length of 47 mm. The gear is made of MC602ST nylon fused to an S45C steel core using a diamond-knurled surface for superior holding strength, with a precision grade of JIS N9 (JIS B1702-1:1998) and a 20° pressure angle. The allowable torque is 2.70 N·m (0.275 kgf·m) and backlash is 0~0.54 mm. The design ensures dimensional stability and operates in a wide temperature range, with no bolts or nuts required for assembly.
Module 3, 25 Tooth Nylon Steel Core Spur Gear with Finished 12mm 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 | KNSU3-25J12 | KNSU3-25J12 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 25 Tooth Nylon Steel Core Spur Gear with Finished 12mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 25 | 25 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
