Plastic spur gears with steel core, module 2.5, 70 teeth, with a 70 mm bore, 210 mm pitch diameter, 216 mm outside diameter, 30 mm face width, and 175 mm total length, designed for use with S45C metal cores and MC602ST nylon teeth. Features JIS Grade N9 precision, 20° pressure angle, standard full-depth teeth, and allowable torque of 93.4 N·m (9.53 kgf·m). The gear integrates the nylon and core via a knurled metal surface with grooves, ensuring strong bonding, dimensional stability across temperature ranges, and elimination of mechanical fasteners. Backlash is specified as 0~0.48 mm.
Module 2.5, 70 Tooth Nylon Steel Core Spur Gear with Finished 30mm 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 | KNSU2.5-70J30 | KNSU2.5-70J30 |
| Product Name | Plastic Spur Gears (metric) | Module 2.5, 70 Tooth Nylon Steel Core Spur Gear with Finished 30mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 70 | 70 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
