KNSU2-70 is a plastic spur gear with a steel core, designed for high-load applications requiring dimensional stability and wide-temperature performance. It has a module of 2, 70 teeth, a pitch diameter of 140 mm, an outside diameter of 144 mm, a face width of 20 mm, and a hub diameter of 60 mm. The gear features a 105 mm total length and a bore size of 60 mm. It is made of MC602ST nylon fused to an S45C steel core using a diamond-knurled interface for enhanced holding strength. The gear meets JIS grade N9 precision standards and has an allowable torque of 27.7 N·m (2.82 kgf·m). The core diameter supports a radial holding strength of 27.7 N·m at room temperature, with thermal compensation factors defined for operation up to 120°C. The product is designed for use with steel mating gears to avoid heat buildup from plastic-on-plastic contact.
Module 2, 70 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.
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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 | KNSU2-70J25 | KNSU2-70J25 |
| Product Name | Plastic Spur Gears (metric) | Module 2, 70 Tooth Nylon Steel Core Spur Gear with Finished 25mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 70 | 70 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
