Structural Features: Double-row spherical rollers, outer ring with spherical raceway, self-aligning; Split brass solid cage (two-piece brass cage), with independent spacer ring; Inner ring with ribs on both sides, large roller dimensions; Commonly with suffix W33 indicating outer ring oil groove and oil holes.

Performance: Brass cage offers high-temperature resistance, impact resistance, not easily deformable, with ample lubrication storage space; Large roller arrangement space, radial load capacity superior to CA; Limiting speed higher than CA, slightly lower than CC; Capable of withstanding heavy radial + bidirectional axial loads, good self-aligning performance.

Quick Differentiation MA / CA / CC: CC: Stamped steel cage, with spacer ring, highest speed, cost-effective, not suitable for severe impact and high temperature; CA: One-piece solid brass cage, no spacer ring, strongest impact resistance, lower speed; MA: Split two-piece brass cage, with spacer ring, large load capacity, medium speed, balanced overall performance.

Typical Applications: Medium to high speed, heavy-load, continuous impact, elevated temperature equipment: Large fans, rolling mill rolls, cement mills, large reducers, medium-impact mining equipment.

Usage Guidelines: Allows shaft misalignment and deflection deviation; MA preferred for high temperature, dust, continuous impact conditions; CC optional for high-speed light impact; CA for extremely low-speed超大冲击 applications.