Plastic spur gears with a steel core, manufactured in module 3, feature a 68-tooth configuration, a 70 mm bore, and a 204 mm pitch diameter with a 210 mm outside diameter and 30 mm face width. The gear uses MC602ST nylon fused to an S45C metal core via a diamond-knurled surface treatment for high holding strength. It meets JIS grade N9 precision (JIS B1702-1:1998) and has a 20° pressure angle with standard full-depth teeth. The allowable torque is 90.6 N·m (9.23 kgf·m), and the total length is 165 mm. Dimensional stability and heat resistance are enhanced by the bonded core, with operational tolerance up to 140°C.
Module 3, 68 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 | KNSU3-68J20 | KNSU3-68J20 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 68 Tooth Nylon Steel Core Spur Gear with Finished 20mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 68 | 68 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
