23172 CA.K.C3.W33 STC spherical roller bearing

STC 23172 CA.K.C3.W33 Spherical Roller Bearing – Heavy Duty Reliability

The STC 23172 CA.K.C3.W33 is a double-row, self-aligning rolling unit engineered to handle extreme radial loads and significant axial forces in both directions. Thanks to its barrel-shaped rollers, this model automatically compensates for shaft-to-housing misalignment, preventing harmful edge stresses. The CA execution features a solid two-piece brass cage, ensuring superior roller guidance and high resistance to vibrations and elevated temperatures.

Application

• Mining & Quarrying: Main bearings for heavy-duty crushers, vibrating screens, and conveyor belt drums.
• Metallurgy: Steel rolling mills, casting machinery, and heavy industrial transport systems.
• Energy Sector: Low-speed shafts for hydroelectric turbines and main gearboxes in wind power plants.
• Paper Industry: Large-scale pressing and drying cylinders subjected to constant pressure.
• Heavy Construction: Slewing mechanisms in port cranes and TBMs (Tunnel Boring Machines).

Technical Specification

• Manufacturer: STC (Specialized Technical Components).
• Designation: 23172 CA.K.C3.W33.
• Dimensions: 360 mm (ID) x 600 mm (OD) x 192 mm (Width).
• Tapered Bore (K): 1:12 taper – ideal for mounting with an adapter sleeve or on a tapered journal.
• Internal Clearance: C3 – increased radial clearance to prevent seizure during thermal expansion.
• Lubrication (W33): Circumferential groove and three lubrication holes in the outer ring for easy maintenance.

Features and Benefits

• Solid Brass Cage (CA): Provides higher mechanical rigidity and longer service life than steel cages, especially under boundary lubrication.
• Self-Alignment: Accommodates shaft deflections, drastically reducing the risk of premature failure.
• C3 Clearance Advantage: Offers a safety margin in high-heat industrial applications.
• W33 System: Facilitates direct lubricant delivery to the rolling zone, reducing friction.
• STC Durability: High-purity bearing steel ensures exceptional resistance to material fatigue.

Why Choose This Product

Investing in the STC 23172 CA.K.C3.W33 bearing ensures the operational uptime of your heaviest machinery. With a 360 mm bore, bearing replacement is a major logistical task – choosing a proven design with a brass cage and tapered bore simplifies precision mounting and guarantees years of maintenance-free service in harsh environments.