23172 CA.W33 STC spherical roller bearing

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

The STC 23172 CA.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, high thermal stability, and exceptional resistance to heavy vibrations.

Application

• Mining & Quarrying: Main bearings for heavy-duty crushers, vibrating screens, and large-diameter 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.W33.
• Dimensions: 360 mm (ID) x 600 mm (OD) x 192 mm (Width).
• Bore: Cylindrical – standard mounting directly on the shaft.
• Internal Clearance: CN (Normal) – optimal for standard fitting and operating temperatures.
• 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 and costly downtime.
• W33 System: Facilitates fresh lubricant delivery directly to the rolling zone, minimizing friction and heat generation.
• STC Durability: High-purity bearing steel ensures exceptional resistance to material fatigue.
• Open Design: Simplifies technical inspections and allows for free lubricant exchange in circulation systems.

Why Choose This Product

By investing in the STC 23172 CA.W33 bearing, you ensure 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 guarantees years of maintenance-free service in the harshest industrial environments.