Bearings Parts

Tapered Roller Bearing Cages

Tapered roller bearing cages are core components of tapered roller bearings. Their main function is to guide the rollers to maintain an even distribution, preventing mutual friction or collision between rollers, and ensuring stable operation of the bearing when subjected to combined radial and axial loads. Their design needs to match the structural characteristics of tapered rollers. By optimizing the contact mode with the rollers, they reduce motion resistance while possessing high-temperature resistance, fatigue resistance, and other properties to adapt to various complex working conditions.

Techspecs

Description

Tapered Roller Bearing Cages

Features

High Load-Bearing Capacity

Adopting a robust structural design, it can work with tapered roller bearings to withstand large combined radial and axial loads, suitable for equipment such as automobiles and rolling mills that bear heavy loads. The mechanical properties of the material are optimized, enabling it to maintain structural stability under long-term heavy-load conditions and avoid deformation or fracture.

Precise Guidance and High-Speed Adaptability

Achieves precise positioning of the rollers through inner or outer ring guidance, ensuring that the rollers move in an orderly manner under high-speed and vibrating environments (such as automobile hub bearings), reducing deflection and impact. The low-inertia design is suitable for high-speed operation scenarios, reducing the risk of roller offset caused by centrifugal force and ensuring stable operation of the bearing.

Excellent Lubrication Performance

Special structural designs (such as hollow grooves and oil channels) facilitate the uniform distribution of lubricants to each contact point between the rollers and the raceway, reducing friction and heat generation. The improvement of lubrication efficiency helps reduce the operating temperature of the bearing, improve overall working efficiency, and extend service life.

Service Life Extension Characteristics

Optimizes the contact area and angle between the cage and the rollers, reduces local wear, and lowers friction loss between the rollers and the cage. The material has excellent fatigue resistance, can withstand alternating stresses for a long time, and effectively extends the overall service life of the tapered roller bearing.

Working Principle

Tapered Roller Bearing Cages
Tapered roller bearings consist of inner rings, outer rings, tapered rollers and cages. Their core feature is that the tapered rollers form line contact, rather than point contact, with the raceways. Both the raceways of the inner ring (shaft ring) and outer ring (housing ring) are tapered, and theoretically, the cone apex of the rollers, the cone apex of the inner ring raceway and the cone apex of the outer ring raceway converge at the same point on the bearing's axis. This ensures that the rollers maintain pure rolling with the inner and outer ring raceways during rotation, reducing sliding friction.

FAQ

The core function is to guide the rollers to be evenly distributed, prevent mutual friction between rollers, ensure stable operation of the bearing when subjected to combined radial and axial loads, and reduce wear to extend the bearing life.
For medium and low loads and low-cost requirements, stamped metal cages can be selected; For heavy loads and complex force conditions, machined metal cages can be selected; For high lubrication requirements or corrosive environments, polymer plastic cages can be selected.
The performance of the cage directly affects the bearing life: if the cage is worn or deformed, it will cause uneven distribution of rollers and increased friction, thereby shortening the overall service life of the bearing. Therefore, the cage needs to be maintained or replaced synchronously with the bearing.
For high-temperature working conditions (such as exceeding 120℃), metal cages (such as those made of alloy structural steel) are recommended. Their high-temperature resistance is better than that of plastic cages, which can avoid material softening or aging.

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