Plastic spur gears with a steel core, module 3, 56 teeth, 168 mm pitch diameter, 174 mm outside diameter, 30 mm face width, and a 70 mm hub diameter. The gear has a 25 mm bore, matching the KNSU3-56 variant. It features a JIS grade N9 precision rating, 20° pressure angle, and is made of MC602ST nylon with an S45C steel core. Allowable torque is 72.7 N·m (7.42 kgf·m), with backlash of 0~0.56 mm. The design uses a diamond-knurled metal core for fusion with nylon, ensuring dimensional stability and high holding strength. Operating temperature range extends to 140°C.
Module 3, 56 Tooth Nylon Steel Core Spur Gear with Finished 25mm 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 | KNSU3-56J25 | KNSU3-56J25 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 56 Tooth Nylon Steel Core Spur Gear with Finished 25mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 56 | 56 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
