The Needle Roller Inner Ring IR17X21X20 – 17X21X20 – INA is a precision-engineered component designed to complement needle roller bearings, ensuring optimal performance in various industrial settings. This inner ring, with a bore diameter of 17 mm, an outer diameter of 21 mm, and a width of 20 mm, is ideal for applications requiring high load capacity in a compact form. Its robust construction makes it suitable for challenging environments in sectors like 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 |
| Basic dynamic load rating (C) | 33.5 kN |
| Basic static load rating (C0) | 56 kN |
| Limiting speed | 12,000 rpm |
| Operating temperature range | -30 / +120 °C |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
The Needle Roller Inner Ring IR17X21X20 – 17X21X20 – INA offers several technical advantages that enhance its utility and performance in industrial applications.
- Heat-treated 100Cr6 chrome steel construction improves resistance to rolling-contact fatigue, enhancing service life.
- Basic dynamic load rating of 33.5 kN supports substantial operational loads.
- Basic static load rating of 56 kN ensures stability under stationary conditions.
- Capable of handling speeds up to 12,000 rpm, suitable for high-speed machinery.
- Standard CN radial clearance provides an optimal fit for assemblies without the need for preload adjustments.
Typical applications
The Needle Roller Inner Ring IR17X21X20 – 17X21X20 – INA is ideally suited for a range of specific applications, ensuring efficient operation across various industries.
- Automotive engineering (gearboxes, crankshaft assemblies)
- Aerospace components (actuator systems, landing gear mechanisms)
- Heavy machinery (excavator arms, conveyor systems)
- Industrial automation (robotic joints, linear guides)
- Textile machinery (spindle assemblies, looms)
Availability and ordering
Eurobearing.eu, as a specialized B2B supplier, offers the Needle Roller Inner Ring IR17X21X20 – 17X21X20 – INA with fast availability. For businesses requiring bulk quantities, we provide the option to request a quote. To purchase, simply add the product to your cart or contact us for further assistance.
