KPS3-30J18 is a plastic spur gear with a module of 3, 18 teeth, and a bore diameter matching the J-series keyway of 6 mm wide by 2.8 mm deep, designed for use with an M5 set screw. The gear is made of MC901 nylon, has a 20° pressure angle, standard full-depth teeth, and a JIS grade N9 precision rating equivalent to S1. The allowable torque is 0.28 N·m (0.028 kgf·m), with a face width of 7.5 mm and total length of 45 mm. Backlash is theoretically 0.28 mm when mated with an identical gear. A set screw is included for hub mounting. Dimensions and tolerances conform to JIS B1301 for keyways. Dimensional stability may vary with temperature and humidity due to the MC nylon material. This part requires a 5-working-day lead time when ordered as a J-series variant.
Module 3, 30 Tooth Nylon Spur Gear with Hub and 18mm 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 | KPS3-30J18 | KPS3-30J18 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 30 Tooth Nylon Spur Gear with Hub and 18mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 30 | 30 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / No Insert |
