The Needle Roller Inner Ring IR150X165X40 – 150X165X40 – INA is an essential component within the bearing accessories category, specifically designed for use with needle roller bearings. Manufactured by INA, this inner ring offers precise dimensions with a bore diameter of 150 mm, an outer diameter of 165 mm, and a width of 40 mm. It is commonly utilized in various industrial applications where compact design and efficient load distribution are crucial, such as in automotive transmissions and industrial machinery.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 150 mm |
| Outer diameter (D) | 165 mm |
| Width (B) | 40 mm |
| Basic dynamic load rating (C) | 52.5 kN |
| Basic static load rating (C0) | 98 kN |
| Material | Chrome steel |
| Operating temperature range | -30 / +120 °C |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
The Needle Roller Inner Ring IR150X165X40 – INA provides several technical advantages that enhance its performance in demanding applications:
- Efficient load distribution with a basic dynamic load rating of 52.5 kN.
- Manufactured from high-strength chrome steel for enhanced fatigue resistance.
- Standard CN radial clearance, suitable for general-purpose applications.
- Wide operating temperature range from -30 to +120 °C, accommodating various environmental conditions.
- Precision class P0 / ABEC-1 ensures adequate precision for many standard industrial uses.
Typical applications
This needle roller inner ring is widely used in several industries due to its robust construction and precision engineering:
- Automotive industry (transmissions, gearbox assemblies)
- Industrial machinery (hydraulic presses, conveyor systems)
- Textile machinery (spinning frames, looms)
- Printing equipment (offset presses, lithography machines)
- Agricultural machinery (harvesters, balers)
Availability and ordering
Eurobearing.eu offers the Needle Roller Inner Ring IR150X165X40 – INA with quick availability for immediate purchase. As a specialized B2B supplier, we provide competitive pricing for bulk orders. For a detailed quote or to add this item to your cart, visit our website and explore our extensive range of bearing accessories.

