24164 CA.W33 STC spherical roller bearing

STC 24164 CA.W33 Spherical Roller Bearing – Heavy Duty Excellence

The STC 24164 CA.W33 is a double-row rolling unit with a reinforced wide-series design, engineered for applications under extreme pressure. Thanks to its barrel-shaped rollers, this bearing features a natural self-aligning capability, ensuring smooth operation even under shaft deflections or housing misalignments. This model stands out with its CA internal design, featuring a solid two-piece brass cage that provides superior roller guidance, thermal stability, and maximum resistance to heavy vibrations and dynamic shocks.

Application

• Mining Industry: Main bearings for heavy-duty jaw crushers, roller crushers, and large conveyor belt drums.
• Metallurgy: Rolling mills for pipes and plates, heavy casting machinery, and foundry transport equipment.
• Paper Industry: Large-scale pressing rolls and calenders subjected to constant, massive pressure.
• Energy Sector: Low-speed shafts in hydroelectric turbines and large planetary gearboxes.
• Heavy Construction: Slewing and support mechanisms in large excavators and TBMs (Tunnel Boring Machines).

Technical Specification

• Manufacturer: STC (Specialized Technical Components).
• Designation: 24164 CA.W33.
• Dimensions: 320 mm (ID) x 540 mm (OD) x 218 mm (Width).
• Internal Clearance: CN (Normal) – optimal for standard fits and stable operating temperatures.
• Cage (CA): Solid brass cage (inner ring guided).
• Lubrication (W33): Circumferential groove and three lubrication holes in the outer ring for efficient grease distribution.

Features and Benefits

• Extreme Load Capacity (241 Series): The extra-wide design allows for larger rolling elements, drastically increasing radial pressure resistance.
• Solid Brass Cage (CA): Provides high mechanical stiffness and longer service life compared to steel cages, especially at low speeds and high loads.
• Self-Aligning Capability: Automatic compensation for misalignment protects the bearing from harmful edge loading.
• W33 System: Facilitates lubricant delivery directly to the rolling zone, minimizing friction and aiding heat dissipation.
• Open Design: Simplifies maintenance and grease replenishment during intense operating cycles.

Why Choose This Product

Opting for the STC 24164 CA.W33 bearing is a strategic investment in the uptime of your heaviest machinery. In 320 mm shaft applications, any unplanned failure results in staggering costs. The combination of the reinforced 241-series geometry, solid brass cage, and W33 lubrication system makes this one of the most reliable solutions on the market for professionals prioritizing durability.