KNSU3-18J14 is a plastic spur gear with a steel core, part of the KNSU3 series featuring a 3 mm module, 18 teeth, and a 30 mm bore diameter. The gear has a pitch diameter of 54 mm, an outside diameter of 60 mm, a face width of 30 mm, and a total length of 47 mm. It is manufactured from MC602ST nylon with an S45C steel core, complying with JIS grade N9 precision standards. The allowable torque is 1.75 N·m (0.28 kgf·m) under standard conditions. Backlash is specified as 0~0.54 mm. The design uses a diamond-knurled steel core for superior bonding, ensuring dimensional stability and high-temperature performance up to 140°C.
Module 3, 18 Tooth Nylon Steel Core Spur Gear with Finished 14mm 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 | KNSU3-18J14 | KNSU3-18J14 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 18 Tooth Nylon Steel Core Spur Gear with Finished 14mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 18 | 18 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
