Needle Roller Bearing Inner Ring

A needle roller bearing inner ring is a component that acts as the inner raceway for needle rollers in a needle roller bearing assembly.

Inner rings are used when the shaft itself cannot be hardened or machined to the required specifications to serve as the raceway.And they are mainly as the component of machined needle roller bearings or heavy-duty needle roller bearings.

ZMS is supply inner rings in metric and inch series.Some inner rings include lubrication grooves and holes for relubrication.
Wide inner rings are available for applications with axial shaft movement or seals adjacent to the bearing.

We can supply by customer requirements from top brand like INA, IKO,NTN and to high quality Chinese needle roller bearing inner ring manufactures, we can fast response to customer.

The main series we can supply:
IR series, LR series, LRB series, MI series.

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Applications

Automotive: In engines, transmissions, and differentials.
Industrial Machinery: In conveyor systems, gearboxes, and electric motors.
Aerospace: In actuators and landing gear systems.
Other: Planetary gears, idler gears, and connecting rods.

Key Features

Space Efficiency: Enables compact bearing designs, ideal for space-constrained applications.
High Load Capacity: Supports heavy radial loads due to the large number of needle rollers.
Durability: Provides a hardened surface that resists wear and fatigue.
Cost-Effectiveness: More economical than machining the shaft to serve as the raceway, especially when bushings are not feasible.

Installation and Maintenance

Alignment: Ensure the inner ring is properly aligned with the outer ring and needle rollers.
Fixing: Inner rings can be located with shoulders or snap rings to prevent movement.
Lubrication: Regular lubrication is essential, and some designs include grooves and holes for relubrication.
Inspection: Periodically check for wear or damage to extend the bearing’s lifespan.