KNSU3-25 is a plastic spur gear with a steel core, designed for power transmission applications. It has a module of 3, 25 teeth, a pitch diameter of 75 mm, an outside diameter of 81 mm, a face width of 30 mm, and a hub width of 17 mm. The gear is made of MC602ST nylon fused to an S45C steel core, with a JIS grade N9 precision rating. The bore diameter is 45 mm, and the total length is 47 mm. The allowable torque is 26.5 N·m (2.70 kgf·m), with a theoretical backlash range of 0 to 0.54 mm. The weight is 0.65 kg. The gear features a diamond-knurled metal core for superior bonding, ensuring dimensional stability across a wide temperature range and eliminating the need for mechanical fasteners.
Module 3, 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 | KNSU3-25 | KNSU3-25 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 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 |
