Plastic spur gear with steel core, module 3, 68 teeth, 186 mm outside diameter, 174 mm pitch diameter, 30 mm face width, and 70 mm hub diameter, featuring a JIS grade N9 precision rating and machined from MC602ST nylon bonded to an S45C steel core. The bore size is 70 mm, matching the hub diameter as specified for the KNSU3-68 variant. Allowable torque is 90.6 N·m (9.23 kgf·m) with backlash between 0 and 0.56 mm. The gear operates with good dimensional stability across a wide temperature range and is designed for direct shaft mounting without additional fasteners.
Module 3, 68 Tooth Nylon Steel Core Spur Gear with Finished 40mm 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 | KNSU3-68J40 | KNSU3-68J40 |
| Product Name | Plastic Spur Gears (metric) | Module 3, 68 Tooth Nylon Steel Core Spur Gear with Finished 40mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 68 | 68 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
