Needle Roller Inner Ring IR40X45X20,5 – 40X45X20,5 – INA

The Needle Roller Inner Ring IR40X45X20,5 – 40X45X20,5 – INA is a crucial component in bearing assemblies, designed to accommodate radial loads and enhance the performance of needle roller bearings. Manufactured by INA, this inner ring features a bore diameter of 40 mm, an outer diameter of 45 mm, and a width of 20.5 mm. It is primarily used in industrial applications where compact yet robust bearing solutions are required, such as in automotive and aerospace machinery.

Technical specifications

Technical advantages

The Needle Roller Inner Ring IR40X45X20,5 – 40X45X20,5 – INA offers several technical benefits:

• Constructed from 100Cr6 chrome steel, ensuring rolling-contact fatigue life exceeds 10⁷ cycles.
• Standard CN radial clearance provides optimal fit for assemblies requiring precise alignment without preload.
• Precision class P0 / ABEC-1 guarantees consistent performance in high-demand applications.
• Designed for seamless integration with needle roller bearings, enhancing load distribution and operational stability.
• Compact dimensions allow for use in space-restricted environments without sacrificing load capacity.

Typical applications

This needle roller inner ring is suitable for a variety of industries and machinery, including:

• Automotive powertrains (gearboxes, differentials)
• Aerospace systems (actuators, control surfaces)
• Construction machinery (hydraulic pumps, drive systems)
• Industrial automation (conveyor systems, robotic arms)
• Textile manufacturing equipment (spinning machines, looms)

Availability and ordering

Available at Eurobearing.eu, a specialized B2B supplier for mechanical industrial components, the Needle Roller Inner Ring IR40X45X20,5-INA can be quickly sourced for your production needs. For bulk orders or quotations, please add to cart or request a quotation directly on our platform.