Plastic spur gears with a steel core, module 2.5, 48 teeth, designed for power transmission applications, are available in a standard cylindrical shape with a 20 mm bore, face width of 25 mm, outside diameter of 125 mm, and total length of 85 mm. The gear operates with a 20° pressure angle and full-depth teeth, conforming to JIS grade N9 (JIS B1702-1: 1998) precision. The MC602ST nylon is fused to an S45C steel core using a diamond-knurled surface process that ensures strong bonding without mechanical fasteners. The allowable torque is 34.8 N·m (3.55 kgf·m), with a backlash range of 0 to 0.48 mm. The component is rated for continuous operation up to 130-140°C and maintains dimensional stability under thermal variation. The core diameter and hub dimensions are consistent with other part numbers in the KNSU2.5 series, and the design eliminates bolts or nuts for a cleaner profile.
Module 2.5, 48 Tooth Nylon Steel Core Spur Gear with Finished 20mm 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 | KNSU2.5-48J20 | KNSU2.5-48J20 |
| Product Name | Plastic Spur Gears (metric) | Module 2.5, 48 Tooth Nylon Steel Core Spur Gear with Finished 20mm Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 48 | 48 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Nylon | Nylon; Nylon / Steel Core |
