KPU1-40 is a plastic spur gear with a stainless steel core, designed for use in applications requiring dimensional stability and high-temperature resistance. It has a module of 1, 40 teeth, a 20° pressure angle, and is made of MC901 nylon bonded to a SUS303 metal core. The gear has a bore diameter of 25 mm, an outside diameter of 42 mm, a face width of 10 mm, and a total length of 28 mm. It meets JIS grade N9 precision (JIS B1702-1: 1998) and has a theoretical backlash of 0~0.34 mm. The allowable torque is 1.48 N·m. The core is mechanically locked via diamond knurling and grooving, ensuring strong adhesion without adhesive or mechanical fasteners. Dimensional changes may occur under temperature or humidity variation due to the MC nylon material. The gear is intended for use with steel gears to avoid heat generation under dry conditions.
Module 1, 40 Tooth Nylon Spur Gear with Stainless Steel Core and 10mm Finished 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 | KPU1-40J10 | KPU1-40J10 |
| Product Name | Plastic Spur Gears (metric) | Module 1, 40 Tooth Nylon Spur Gear with Stainless Steel Core and 10mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 40 | 40 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Stainless; Nylon; Nylon / Stainless Core |
