24172 CA.W33 STC spherical roller bearing

STC 24172 CA.W33 Spherical Roller Bearing – Extreme Capacity for Heavy Industry

The STC 24172 CA.W33 is a double-row, self-aligning rolling unit from the wide-series range, engineered to handle the highest radial loads. Due to its unique roller design, this model automatically compensates for shaft-to-housing misalignment, which is vital for large-span support structures. The CA execution features a solid two-piece brass cage guided on the inner ring, ensuring excellent running stability, high thermal resistance, and minimized friction in the harshest operating environments.

Application

• Mining Industry: Main bearings for impact crushers, ball mills, and large-scale vibrating screens.
• Steel & Rolling Mills: Work rolls and billet transport mechanisms subjected to massive pressures.
• Paper Industry: Heavy-duty press rolls and calenders requiring stability across large machine widths.
• Energy Sector: Low-speed turbine shafts and main gearboxes for large wind turbines.
• Shipbuilding: Thrust and guide bearings for propeller shafts with a 360 mm diameter.

Technical Specification

• Manufacturer: STC (Specialized Technical Components).
• Designation: 24172 CA.W33.
• Dimensions: 360 mm (ID) x 600 mm (OD) x 243 mm (Width).
• Bore: Cylindrical – for direct mounting on the shaft.
• Internal Clearance: CN (Normal) – optimal for standard technical fits.
• Lubrication (W33): Circumferential groove and three lubrication holes in the outer ring for in-situ servicing.

Features and Benefits

• 241 Series (Wide Design): Offers significantly larger contact area and load capacity than standard 230 or 231 series for the same bore size.
• Solid Brass Cage (CA): Demonstrates much higher mechanical durability compared to steel cages, especially under low speeds and high pressures.
• W33 System: Facilitates precise lubricant delivery directly between the roller rows, drastically reducing friction and operating temperature.
• Full Self-Alignment: Operates failure-free under shaft deflection, protecting the machinery from sudden fatigue-related shaft failures.
• Open Design: Allows for custom selection of specialized lubricants tailored to specific operating environments.

Why Choose This Product

By choosing the STC 24172 CA.W33 bearing, you are investing in uncompromising durability. With a width of 243 mm, this model is built to handle forces that would destroy standard bearings. It is an investment in the operational continuity of your most critical equipment – the brass cage and the reinforced 241-series construction guarantee that maintenance occurs as scheduled, not as a result of a sudden breakdown.