22306 Spherical Roller Bearings

22306 Spherical Roller Bearing | CA / CC / MB Cage Types Heavy Duty Bearings

The 22306 spherical roller bearing is a wide-width double-row self-aligning roller bearing in the 22300 series, widely used for heavy-load, shock-resistant industrial transmission systems. Compared with standard 222-series bearings, it features a larger roller layout and higher structural rigidity, capable of bearing heavy radial loads and moderate bidirectional axial loads. Its excellent self-aligning ability compensates for shaft deflection, installation misalignment and mechanical vibration. The 22306 bearing is available in three mainstream cage variants: 22306CA, 22306CC and 22306MB, with different cage materials and structures to suit diversified industrial working conditions.

22306 CA / CC / MB Cage Type Introduction

22306CA (Brass Machined Cage): Equipped with a high-precision solid brass machined cage. This structure features high strength, good toughness and excellent high-temperature resistance. It effectively resists deformation under high speed, heavy impact and high-temperature operating environments. With low friction coefficient and stable lubrication performance, the CA cage extends bearing service life, ideal for continuous high-load and high-temperature industrial equipment.

22306CC (Stamped Steel Cage): Adopts lightweight stamped steel cage with integrated forming technology. It offers high rigidity, strong impact resistance and outstanding cost performance. The streamlined structure reduces running resistance and ensures flexible roller rotation. Suited for conventional medium-speed and heavy-load scenarios, CC type is the most economical and versatile option for general industrial applications.

22306MB (Solid Brass Cage): Features an upgraded integral brass cage with optimized roller clearance design. It delivers stronger structural stability, better wear resistance and superior anti-fatigue performance compared with standard types. The MB cage maintains precise operation under long-cycle alternating loads, perfectly adapting to low-speed, super-heavy load and high-vibration harsh working conditions.

Core Material And Structural Advantages

All 22306 series bearings adopt high-carbon chrome bearing steel as the main body material, featuring ultra-high hardness, compression resistance and cyclic fatigue resistance. The wide-body roller arrangement greatly improves load capacity and shock resistance, while the spherical raceway realizes automatic alignment correction. Different cage configurations endow the bearing with flexible environmental adaptability: steel cage for cost-effective general use, brass CA for high-temperature high-speed scenarios, and brass MB for super-heavy vibration-intensive equipment.

Industrial Applications

The 22306 CA/CC/MB spherical roller bearings cover full-scene heavy-duty industrial applications. 22306CC is widely used in general machinery such as industrial fans, ordinary conveyors and agricultural equipment. 22306CA fits high-temperature and high-speed equipment including cement machinery and light mining transmission systems. 22306MB is preferred for heavy vibration and super-heavy load devices such as mining machinery and construction equipment. Overall, the 22306 multi-cage series provides stable, low-maintenance and cost-effective bearing solutions for diverse medium and heavy industrial mechanical systems.