KPU1-80J12 is a plastic spur gear in the KPU series with a module of 1, 80 teeth, and a stainless steel core, designed for mechanical power transmission with enhanced dimensional stability and torque capacity. The gear features a 12 mm bore, consistent with the KPU1-80 variant, and is molded from MC901 nylon fused to a SUS303 metal hub, providing operating temperature resilience up to 140°C. The gear has a pitch diameter of 80 mm, outside diameter of 82 mm, face width of 10 mm, and total length of 45 mm, with conformity to JIS B1702-1:1998 precision grade N9. Backlash is specified as 0~0.40 mm, and allowable torque is 3.34 N·m. The design excludes bolts or nuts, offering a clean profile and improved resistance to thermal expansion compared to conventional bonded or shrink-fitted gears.
Module 1, 80 Tooth Nylon Spur Gear with Stainless Steel Core and 12mm 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 | KPU1-80J12 | KPU1-80J12 |
| Product Name | Plastic Spur Gears (metric) | Module 1, 80 Tooth Nylon Spur Gear with Stainless Steel Core and 12mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 80 | 80 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Stainless; Nylon; Nylon / Stainless Core |
