232/500 CA.K.C3.W33 STC spherical roller bearing

STC 232/500 CA.K.C3.W33 Spherical Roller Bearing – Industrial Powerhouse

The STC 232/500 CA.K.C3.W33 is a double-row, self-aligning rolling unit of monumental proportions, engineered to handle extreme radial loads and significant axial forces in both directions. Thanks to the barrel-shaped rollers, this model automatically compensates for shaft-to-housing misalignment, preventing harmful edge stresses. The CA version features a solid two-piece brass cage, ensuring superior roller guidance, excellent thermal stability, and resistance to heavy vibrations.

Application

• Mining & Quarrying: Main bearings for heavy-duty crushers, vibrating screens, and large conveyor drive drums.
• Metallurgy: Steel rolling mills, casting machinery, and transport equipment in steelworks.
• Renewable Energy: Main shafts for high-power wind turbines and planetary gearboxes.
• Paper Industry: Large-scale pressing and drying cylinders subjected to constant, massive pressure.
• Heavy Construction: Slewing mechanisms in port cranes and TBMs (Tunnel Boring Machines).

Technical Specification

• Manufacturer: STC (Specialized Technical Components).
• Designation: 232/500 CA.K.C3.W33.
• Dimensions: 500 mm (ID) x 920 mm (OD) x 336 mm (Width).
• Tapered Bore (K): 1:12 taper – designed for mounting with an adapter sleeve or directly on a tapered shaft.
• Internal Clearance: C3 – increased radial clearance, vital for high-temperature operations and interference fits.
• Lubrication (W33): Circumferential groove and three lubrication holes in the outer ring for efficient maintenance.

Features and Benefits

• Solid Brass Cage (CA): Ensures mechanical stability and longer service life compared to steel cages, especially under boundary lubrication.
• Self-Aligning Capability: Automatic compensation for shaft deflection protects the bearing from harmful edge loading and premature wear.
• C3 Clearance Advantage: Prevents bearing seizure due to thermal expansion of the shaft during intense operation.
• W33 System: Facilitates fresh lubricant delivery directly to the rolling zone, minimizing friction.
• Simplified Installation: The tapered bore allows for precise adjustment of operational clearance during seating.

Why Choose This Product

Opting for the STC 232/500 CA.K.C3.W33 bearing is a strategic decision for the uptime of your heaviest infrastructure. With a 500 mm bore, any unplanned failure results in staggering logistical and downtime costs. The combination of reinforced design, solid brass cage, C3 clearance, and W33 lubrication makes this one of the most reliable solutions on the market for professionals prioritizing durability.