23068 CA.K.C3.W33 STC spherical roller bearing

STC 23068 CA.K.C3.W33 Spherical Roller Bearing – Heavy Duty

The STC 23068 CA.K.C3.W33 is a high-performance double-row rolling unit engineered to accommodate massive radial loads and double-sided axial forces. Due to the barrel-shaped rollers, this bearing possesses a natural self-aligning capability, ensuring faultless operation even under shaft deflections or housing misalignments. This model features a reinforced CA internal design with a solid brass cage, providing superior roller guidance, thermal stability, and maximum resistance to vibrations and dynamic shocks.

Application

• Mining Industry: Main bearings for crushers, vibrating screens, and conveyor drums.
• Metallurgy: Steel rolling mills and heavy-duty casting transport equipment.
• Paper Industry: Pressing and drying rollers subjected to high pressure and temperatures.
• Energy Sector: Large-scale wind turbines, hydroelectric units, and generators.
• Heavy Construction: Slewing mechanisms and drives for piling rigs and Tunnel Boring Machines (TBM).

Technical Specification

• Manufacturer: STC (Specialized Technical Components).
• Designation: 23068 CA.K.C3.W33.
• Dimensions: 340 mm (ID) x 520 mm (OD) x 133 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, ideal for high-temperature operations and heavy interference fits.
• Lubrication (W33): Annular groove and three lubrication holes in the outer ring for efficient relubrication.

Features and Benefits

• Solid Brass Cage (CA): Provides mechanical stability and longer service life compared to steel cages, especially under boundary lubrication.
• Self-Aligning Capability: Automatically compensates for misalignment, protecting the bearing from premature wear.
• C3 Clearance Advantage: Prevents bearing seizure caused by thermal expansion of the shaft during intense operation.
• Simplified Installation: The tapered bore allows for precise adjustment of operational clearance during seating.
• Extreme Load Rating: The double-row spherical design provides the highest resistance to radial pressures.

Why Choose This Product

Opting for the STC 23068 CA.K.C3.W33 bearing is a strategic investment in the uptime of your heaviest machinery. In 340 mm shaft applications, every hour of downtime results in massive financial losses. The combination of a reinforced brass cage, increased C3 clearance, and W33 lubrication features makes this one of the most durable solutions on the market, dedicated to professionals prioritizing reliability in extreme conditions.