The KNSU3-70 is a plastic spur gear with a steel core, featuring a module of 3, 70 teeth, a 70 mm pitch diameter, and a 175 mm outside diameter. It has a 70 mm hub diameter, 30 mm face width, and 47 mm total length. The gear is made of MC602ST nylon fused to an S45C steel core using a diamond-knurled surface treatment for enhanced bonding. It meets JIS grade N9 (JIS B1702-1:1998) and JIS grade 5 (JIS B1702:1976) precision standards. The allowable torque is 93.4 N·m (9.53 kgf·m), with a theoretical backlash of 0~0.56 mm. The design ensures dimensional stability across wide temperature ranges, up to 140°C, and eliminates the need for mechanical fasteners.
Module 3, 70 Tooth Nylon Steel Core Spur Gear with Finished 32mm 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 | KNSU3-70J32 | KNSU3-70J32 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 70 Tooth Nylon Steel Core Spur Gear with Finished 32mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 70 | 70 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
