The Needle Roller Inner Ring IR8X12X10,5, manufactured by INA, is a precision component designed for high-performance applications in various industrial sectors. With dimensions of 8 mm bore diameter, 12 mm outer diameter, and 10.5 mm width, this inner ring serves as a crucial bearing accessory. It is commonly utilized in applications requiring compact design and high load-carrying capacity, where space constraints and weight considerations are essential.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 8 mm |
| Outer diameter (D) | 12 mm |
| Width (B) | 10.5 mm |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Internal clearance | Standard |
Technical advantages
The Needle Roller Inner Ring IR8X12X10,5 offers several technical advantages that make it suitable for demanding applications:
- Compact design suitable for limited-space installations.
- Constructed from heat-treated 100Cr6 chrome steel, ensuring rolling-contact fatigue life exceeding 107 cycles.
- Standard precision class P0 / ABEC-1 ensuring compatibility with general-purpose applications.
- Standard internal clearance, optimal for assemblies without preload.
- High load-carrying capacity due to the robust needle roller configuration.
Typical applications
This needle roller inner ring is typically employed in a variety of industries and machines, including:
- Automotive engineering (transmissions, drive shafts)
- Textile machinery (spinning frames, weaving looms)
- Power tools (drills, grinders)
- Industrial automation (conveyor systems, robotics)
- Printing equipment (offset presses, digital printers)
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for mechanical components like the Needle Roller Inner Ring IR8X12X10,5-INA. Enjoy fast availability and the option to request a quotation for bulk quantities. Add this component to your cart or request a quote today to meet your industrial needs efficiently.

