Description
CAT 447-5308 Bearing
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The CAT 447-5308 is a Caterpillar genuine carbon steel heavy-duty support bearing, compatible with drilling equipment pipe rack assemblies, used in drill pipe storage and transport systems. The following are precise original factory specifications and application information; replacement parts are not included.
Core Technical Parameters
Item Details
Part Model: CAT 447-5308 (Heavy-duty support bearing, carbon steel)
Material: Entirely carbon steel, surface hardened to improve wear resistance and strength
Key Dimensions: Inner diameter 61.9 mm (2.437 in), outer diameter 112.7 mm (4.437 in), height 59.1 mm (2.3279 in), lip thickness 16.71 mm (0.632 in)
Performance Parameters: Suitable for medium-low speed heavy-duty conditions, can withstand large radial loads, adaptable to the reciprocating and rotating motion of pipe rack assemblies, ensuring stable drill pipe delivery
Single Weight: Approximately 2.8 kg (6.17 lbs)
Tolerance Standards: Inner diameter tolerance 0/-0.02 mm, outer diameter tolerance 0/+0.025 mm, height tolerance ±0.15 mm, surface roughness Ra ≤ 1.6 μm
Lubrication and Sealing Compatible with extreme pressure lithium-based grease, employing a contact seal to effectively prevent the intrusion of mud and dust during drilling operations, thus preventing grease leakage.
Structure and Core Features
Heavy-duty support structure: Specifically designed for drilling equipment pipe rack assemblies, adaptable to the heavy-duty requirements of drill pipe storage and transportation, stably supporting the weight of the drill pipe, ensuring accurate positioning during transportation, and reducing vibration and displacement.
Carbon steel material advantages: The entire structure is made of hardened carbon steel, possessing high rigidity and impact resistance, capable of withstanding complex loads and harsh working conditions in drilling operations, extending service life.
Lip seal design: 16.71 mm lip thickness, contact seal structure, effectively isolates external contaminants, suitable for dusty and muddy drilling environments, reducing maintenance frequency.
Suitable for medium and low speed conditions: Optimized structural design adapts to the medium and low speed movement of the pipe rack assembly, reducing friction loss and ensuring smooth and efficient drill pipe transportation.
Compatible Models and Application Scenarios
Compatible Equipment: Pipe rack systems for CAT series drilling equipment (such as oil drilling rigs, water well drilling rigs, etc.).
Core Purpose: Installed in the support and transport sections of the pipe rack assembly, it supports the weight of the drill pipe, guides the storage and transport direction of the drill pipe, and ensures that the drill pipe does not deviate or jam during transport. Suitable for heavy-load, dusty, and muddy drilling conditions.
