Plastic spur gears with a steel core, available in module 2.5 and 3, feature a JIS grade N9 precision rating, 20° pressure angle, and are molded from MC602ST nylon onto an S45C steel core using a diamond knurling process for strong bonding. The KNSU2.5-56 variant has 56 teeth, a pitch diameter of 140 mm, an outside diameter of 145 mm, a face width of 25 mm, a hub width of 15 mm, and a total length of 105 mm. It has an allowable torque of 42.1 N·m (4.29 kgf·m) and a backlash of 0~0.48 mm. The hub bore diameter is 65 mm. The gear is rated for operation across a wide temperature range and demonstrates good dimensional stability due to full surface fusion of nylon to the metal core.
Module 2.5, 56 Tooth Nylon Steel Core Spur Gear with Finished 20mm 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 | KNSU2.5-56J20 | KNSU2.5-56J20 |
| Product Name | Plastic Spur Gears (metric) | Module 2.5, 56 Tooth Nylon Steel Core Spur Gear with Finished 20mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 56 | 56 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
