193-3063: Two Bolt Bearing Cap

CAT 193-3063 is a Caterpillar bulldozer push arm bearing cap assembly, suitable for the hinge joint between the push arm and support frame of bulldozers such as the D8T. It is used to secure and seal the bearing. Key information is as follows:

Key Parameters
Item Details
Type: Double-bolted fixed bearing cap assembly, including cap body, gasket, and locating pin. Suitable for double-row tapered roller bearings, used for axial positioning and radial support, preventing bearing movement and contamination.
Dimensions (Metric/Imperial): Inner diameter 127.00mm (5.000 inches), outer diameter 184.15mm (7.250 inches), thickness 38.10mm (1.500 inches), bolt hole diameter 22.23mm, hole spacing 152.40mm, suitable for corresponding bearing outer diameter and mounting hole position.
Material: Low carbon alloy steel (AISI 1045), integrally forged and tempered, hardness… HB220-250, tensile strength ≥650MPa, uncoated surface, corrosion protection relies on overall equipment protection.

Accuracy: Inner diameter tolerance +0.020/-0.010mm, outer diameter tolerance ±0.15mm, bolt hole position tolerance ±0.10mm, ensuring precise fit with bearings and brackets, preventing swaying after installation.

Sealing Structure: Built-in nitrile rubber (NBR) gasket, thickness 3.0mm, compression 0.5-1.0mm, suitable for operating temperatures -40℃ to 120℃, preventing dust and moisture from entering the bearing cavity.

Suitable Applications: Compatible with Cat D8T bulldozer boom hinge shaft bearings, D8R bulldozer blade angle adjustment bracket bearings, etc., for fixing double-row tapered roller bearings (such as 1J-6744), ensuring smooth operation of the boom during lifting, tilting, and withstanding heavy loads and vibration conditions.

Suitable for use during equipment overhauls when bearing caps show deformation, cracks, or aging and leaking gaskets, assemblies can be replaced to ensure the reliability of hinged joints.

Performance Characteristics: One-piece forged structure, high rigidity, capable of withstanding impact loads during bulldozing operations, preventing deformation that could lead to abnormal bearing clearance, and extending bearing life.

Integrated gasket and locating pin, eliminating the need for additional installation, high positioning accuracy, reducing installation errors, and improving maintenance efficiency.

Alloy steel material offers good fatigue resistance, suitable for the harsh working conditions of bulldozers under heavy loads and high-frequency vibrations, reducing the risk of cracking.

Compatibility and Replacement:
Compatible Components: Compatible with 1J-6744 double-row tapered roller bearings, 1U-2182 bushings, and gaskets (supplied with the assembly). It is recommended to check bearing wear during replacement and replace the entire assembly to ensure performance.

Direct Replacement: CTP brand H1933063, interchangeable, suitable for the same equipment and installation conditions, with performance identical to the original.