7T-4966: Push Arm Bearing Cap

CAT 7T-4966 is Caterpillar’s Heavy-Duty Bearing Cap, specifically designed to secure large bearings and seal bearing cavities. It is suitable for critical components in high-power engines and heavy-duty tracked equipment. Key information is as follows:

Key Parameters
Item Details
Type: Split-type heavy-duty bearing cap with locating pin holes and bolt holes for securing the bearing outer ring. It provides a static seal when used with a gasket, suitable for heavy-duty and high-vibration conditions, offering excellent positioning and sealing performance.
Dimensions (Metric/Imperial): Inner diameter approx. 101.60mm (4.0 inches), outer diameter approx. 165.10mm (6.5 inches), thickness approx. 31.75mm (1.25 inches), bolt hole diameter 15.88mm (5/8 inches), 6 holes circumferentially distributed, hole spacing diameter 139.70mm (5.5 inches)

Material: Medium carbon alloy steel (AISI 4140), quenched and tempered, hardness… HB280-320 offers strong resistance to deformation and impact; its blackened surface oxidation treatment enhances corrosion resistance; it is compatible with nitrile rubber (NBR) gaskets, with an oil resistance temperature range of -40℃ to 120℃.

Precision: Inner diameter tolerance ±0.025mm, flatness tolerance ≤0.02mm, bolt hole position tolerance ≤0.03mm, ensuring precise bearing positioning and sealing performance.

Installation Method: Bolt tightening with locating pins to prevent rotation; gasket pre-compression is controlled at 15% – 20% to ensure long-term leak-proof sealing.

Suitable Applications: Compatible with crankshaft main bearings, camshaft bearings, and drive axle main reducer bearings in Cat 3412/3412D/3412E engines, C27 engines, D10N/D10R/D10T bulldozers, and other equipment. It is used to fix bearings, seal grease, prevent dust and moisture from entering the bearing cavity, and extend the service life of bearings and related components.

Suitable for complete replacement during equipment overhauls, eliminating the need for separate seals and fasteners, significantly improving maintenance efficiency. Ideal for heavy-duty applications in mining, large-scale infrastructure, and other demanding environments.

Performance Characteristics: Made of medium-carbon alloy steel, heat-treated for approximately 40% higher fatigue strength than ordinary carbon steel bearing covers, capable of withstanding heavy-duty impact conditions.

Split-type design facilitates installation and disassembly, suitable for the maintenance needs of large bearings, with installation efficiency approximately 30% higher than split-type ordinary bearing covers.

Oxidized black surface treatment paired with NBR gaskets provides an IP65 protection rating, suitable for harsh operating environments with high dust, humidity, and heavy loads.

Alternative Models: Direct replacements: 7T-4967, 9J-2586, interchangeable and suitable for the same equipment and installation conditions.