The Needle Roller Inner Ring LR35X40X20,5 – 35X40X20,5 – INA is a precision-engineered component designed for integration with needle roller bearings. Manufactured by INA, this inner ring features dimensions of 35 mm bore diameter, 40 mm outer diameter, and 20.5 mm width, making it ideal for high-load, compact applications. This component is typically used in industrial settings where precise alignment and rotational accuracy are critical, such as in automotive transmissions and machinery gearboxes.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 35 mm |
| Outer diameter (D) | 40 mm |
| Width (B) | 20.5 mm |
| Ring material | Chrome steel 100Cr6 |
| Basic dynamic load rating (C) | Omitted |
| Basic static load rating (C0) | Omitted |
| Limiting speed (rpm) | Omitted |
| Reference speed (rpm) | Omitted |
| Precision class | P0 / ABEC-1 |
Technical advantages
The Needle Roller Inner Ring LR35X40X20,5 – INA offers several technical advantages that make it suitable for demanding industrial applications:
- Manufactured from heat-treated 100Cr6 chrome steel, ensuring superior rolling-contact fatigue life.
- Precision class P0 / ABEC-1 for applications requiring standard accuracy and running performance.
- Smooth surface finish to minimize friction and wear during operation.
- Compact dimensions facilitating integration in space-constrained designs.
- Compatible with a variety of needle roller bearings for versatile use across different systems.
Typical applications
This inner ring is suitable for a wide range of specific industrial applications, including:
- Automotive industry (transmissions, differential assemblies)
- Heavy machinery (gearboxes, hydraulic pumps)
- Textile machinery (spinning and weaving machines)
- Packaging industry (wrapping machines, conveyors)
- Agricultural machinery (harvesters, balers)
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for the Needle Roller Inner Ring LR35X40X20,5-INA, offering fast availability. For bulk quantities, you can request a quote directly from our platform. Add this essential component to your cart today or contact us for further inquiries.

