KNSU2-68 is a plastic spur gear with a steel core, featuring a module of 2, 68 teeth, a pitch diameter of 136 mm, an outside diameter of 140 mm, a face width of 20 mm, and a hub bore diameter of 60 mm. The gear is made of MC602ST nylon fused to an S45C steel core using a diamond-knurled surface process for enhanced adhesion. It has a pressure angle of 20°, follows JIS grade N9 precision (JIS B1702-1: 1998), and has an allowable torque of 26.8 N·m. The total length is 100 mm, and the weight is 1.66 kg. The gear exhibits dimensional stability across temperature ranges up to 140°C and maintains low backlash, specified as 0~0.46 mm. Secondary operations may reduce holding strength at the metal-plastic interface.
Module 2, 68 Tooth Nylon Steel Core Spur Gear with Finished 28mm 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 | KNSU2-68J28 | KNSU2-68J28 |
| Product Name | Plastic Spur Gears (metric) | Module 2, 68 Tooth Nylon Steel Core Spur Gear with Finished 28mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 68 | 68 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
