The KNSU3 series consists of plastic spur gears with a steel core, manufactured from MC602ST nylon fused to an S45C metal hub using a diamond knurling process for high holding strength. Each gear has a module of 3, 20° pressure angle, standard full-depth teeth, and JIS grade N9 precision. The KNSU3-44 variant has 44 teeth, a pitch diameter of 132 mm, an outside diameter of 138 mm, a face width of 30 mm, and an allowable torque of 54.0 N·m (5.51 kgf·m). The hub diameter for this model is 70 mm, and the total length is 95 mm. The bore size is not explicitly stated for KNSU3-44J30, but the series uses hub diameters matching the bore, and dimensional stability is maintained across temperature variations. The design eliminates the need for mechanical fasteners, providing a clean appearance and high thermal performance, with verified use up to 140°C.
Module 3, 44 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.
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 | KNSU3-44J30 | KNSU3-44J30 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 44 Tooth Nylon Steel Core Spur Gear with Finished 30mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 44 | 44 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
