Plastic spur gears with a steel core, available in module 3 with 30 teeth, feature a 55 mm bore diameter, 90 mm pitch diameter, and 96 mm outside diameter. The gear has a 30 mm face width, 17 mm hub width, and 47 mm total length. Made of MC602ST nylon with an S45C steel core, it meets JIS grade N9 precision (JIS B1702-1:1998) and has a 20° pressure angle. The allowable torque is 33.2 N·m (3.39 kgf·m), with a theoretical backlash of 0~0.54 mm. The metal core is bonded to the nylon via a diamond-knurled surface and grooves, ensuring strong adhesion and dimensional stability across temperature ranges up to 140°C. The part is not explicitly listed as KNSU3-30J22, but the base part KNSU3-30 is detailed; the J22 suffix likely indicates an ordering variant not described.
Module 3, 30 Tooth Nylon Steel Core Spur Gear with Finished 22mm 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 | KNSU3-30J22 | KNSU3-30J22 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 30 Tooth Nylon Steel Core Spur Gear with Finished 22mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 30 | 30 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
