The SKF IR 17X21X20 Needle Roller Inner Ring is a precision-engineered component designed for demanding industrial applications. With main dimensions of 17 mm bore diameter, 21 mm outer diameter, and 20 mm width, this inner ring is optimized for use with needle roller bearings. The SKF IR 17X21X20 is commonly utilized in situations requiring high load capacity and compact design, making it suitable for sectors such as automotive, aerospace, and heavy machinery.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 17 mm |
| Outer diameter (D) | 21 mm |
| Width (B) | 20 mm |
| Ring material | Chrome steel 100Cr6 |
Technical advantages
The SKF IR 17X21X20 offers several technical advantages that enhance its performance in industrial settings:
- Manufactured from heat-treated 100Cr6 chrome steel, ensuring prolonged rolling-contact fatigue life exceeding 107 cycles.
- Compact design with 17 mm bore diameter, allowing efficient integration into space-restricted assemblies.
- Engineered to provide optimal performance in conjunction with needle roller bearings, enhancing load distribution and longevity.
- Standard dimensions facilitate easy replacement and compatibility with existing systems.
- Robust construction suitable for high-load applications, reducing the risk of deformation under stress.
Typical applications
This inner ring is ideally suited for a variety of industrial applications, including:
- Automotive industry (gearboxes, transmissions)
- Aerospace sector (aircraft control systems, landing gear)
- Heavy machinery (construction equipment, hydraulic presses)
- Textile machinery (spinning frames, weaving looms)
- Packaging equipment (conveyors, wrapping machines)
Availability and ordering
Eurobearing.eu, a specialized B2B supplier, ensures fast availability of the SKF IR17X21X20 Needle Roller Inner Ring. Customers can easily add this product to their cart for immediate purchase or request a quotation for bulk quantities to meet specific industrial needs.

