Koyo Corp. IR-612-1 Inner Ring

Product Description

The Koyo Corp. IR-612-1 is an inner ring designed for compatibility with drawn cup needle roller bearings. This component serves as a hardened and accurately toleranced inner race, ensuring optimal performance in various applications.

• Constructed from high carbon, high chromium steel
• Features an oil hole option for improved lubrication
• Available in both inch and metric sizes

Product Highlights

This inner ring enhances the durability and functionality of bearings, and it can also function as a wear bushing in certain setups.

Product Information

Standard Information

• Brand: Koyo Corp.
• MPN: IR-612-1

Technical Specifications

• Inner Diameter: 0.38 in, 9.53 mm
• Outer Diameter: 0.63 in, 15.88 mm
• Overall Width: 0.77 in, 19.43 mm
• Weight: 0.005 LB
• Operating Temperature Max: 230 °F
• Operating Temperature Min: -22 °F
• Tolerance: Iso Class 0 (RBEC 1)
• Bearing Material: High Carbon Chrome Steel
• Precision Ground: Yes