Needle Roller Bearing Inner Rings

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Needle Roller Bearing Inner Rings
NO. Product Product Number Диаметр отверстия втулки (d) Ширина (B) Вес Диаметр дорожки качения (F) Размер фаски (r1,2)

Features and advantages of QIBR needle roller bearing inner ring

QIBR needle roller bearing inner ring solves multiple key problems in various fields, mainly reflected in the following aspects:

1. Precision machining

Needle roller bearing inner rings are usually manufactured through high-precision machining processes, such as cylindrical grinding, inner hole machining, etc., to ensure dimensional accuracy and surface finish, ensure smoother contact between the needle roller and the inner ring, and reduce friction loss.

2. Hardening treatment

In order to improve wear resistance and extend service life, the inner ring is often heat treated (such as quenching and tempering) to increase surface hardness and improve wear resistance.

3. Lightweight design

Since the inner ring of the needle roller bearing is designed to provide support and guidance, its design usually has a lighter structure, reducing the weight of the entire bearing and adapting to high speed and low friction requirements.

4. Wear resistance and fatigue strength

The material and processing method of the inner ring ensure that it maintains good performance during long-term operation. Its wear resistance and fatigue resistance enable the bearing to continue to work under harsh conditions and provide stable performance.

The performance improvement and solution of QIBR needle roller bearing inner ring 

1. Surface coating

By applying a layer of wear-resistant and corrosion-resistant coating (such as hard coating, ceramic coating, etc.) on the surface of the inner ring, the wear resistance, corrosion resistance and oxidation resistance of the inner ring can be improved, thereby enhancing its performance in harsh environments.

2. Nitriding treatment

The nitriding treatment of the inner ring can form a hardened layer on its surface, improve the anti-friction performance and reduce wear. In addition, the nitriding layer also has strong corrosion resistance.

3. Precision machining

Through higher precision machining methods such as grinding and ultra-precision machining, the surface finish and flatness of the inner ring are further improved, the friction coefficient is reduced, and it can maintain better stability under high speed and high load conditions.

4. Heat treatment

By quenching the inner ring, the hardness and wear resistance of the inner ring surface are improved, and the fatigue resistance and impact resistance are enhanced. This treatment can effectively extend the service life of the inner ring.