Plastic spur gears with a steel core, module 3, featuring a 30-tooth count and a 55 mm bore diameter, are designed for high torque transmission with dimensional stability across temperature variations. The gear uses MC602ST nylon bonded to an S45C steel core via a diamond-knurled surface treatment, eliminating the need for mechanical fasteners. Precision meets JIS grade N9 (JIS B1702-1:1998), with a 20° pressure angle and standard full-depth teeth. The allowable torque is 33.2 N·m (3.39 kgf·m), and the face width is 30 mm. Total length is 60 mm, with a hub width of 17 mm and a weight of 0.91 kg. Backlash is specified as 0~0.54 mm. The product is rated for operation in high-temperature environments up to 140°C.
Module 3, 30 Tooth Nylon Steel Core Spur Gear with Finished 15mm 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 | KNSU3-30J15 | KNSU3-30J15 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 30 Tooth Nylon Steel Core Spur Gear with Finished 15mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 30 | 30 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
