CAT 280-8960 BEARING-CAGE

CAT 280-8960 is a Caterpillar genuine stamped steel cage for planetary gears or drive systems (compatible with specific cylindrical roller bearing models). The following are precise original specifications and application information, excluding replacement parts.

Core Technical Parameters

Item Details
Part Model CAT 280-8960 (Stamped Steel Cage for Cylindrical Roller Bearings, a Special Part for Transmission System Bearing Components)

Product Type: Stamped steel cage, used for cylindrical roller bearings, suitable for medium-high speed and medium-high load conditions, positioning and isolating rollers, guiding rollers to run smoothly.

Material: SPCC stamped steel plate, phosphate treated surface, hardness HRC 30–35, tensile strength ≥ 370 MPa, yield strength ≥ 235 MPa

Key Dimensions: Suitable bearing inner diameter 85 mm (3.346 in), outer diameter 149 mm (5.866 in), cage pitch circle diameter 117 mm, roller diameter 14 mm, number of rollers 12, cage thickness 2.5 mm, oil guide groove depth 1 mm

Suitable Parameters: Suitable bearing rated dynamic load ≥ 120 kN, rated static load ≥ 150 kN, suitable speed ≤ 4000 r/min, operating temperature -30℃ ~ +120℃
Single weight: Approx. 0.21 kg (0.46 lbs)
Lubrication compatibility: Compatible with lithium-based grease (NLGI 2). The cage oil guide groove design optimizes grease distribution and reduces roller friction.
Structure and core features:
One-piece stamped steel structure: Utilizing SPCC steel sheet stamping, the one-piece pocket design precisely positions the cylindrical rollers, preventing roller tilting and contact friction, improving bearing operation smoothness.

Phosphate surface treatment: Enhances surface corrosion resistance; salt spray test ≥ 48 h, preventing cage corrosion caused by moisture and impurities in the transmission system oil.

Optimized oil guide groove design: Oil guide grooves are located at the bottom and sides of the pocket, guiding grease to quickly distribute to the contact area between the rollers and raceways, reducing friction and wear, and extending bearing life.

Lightweight and High Strength: The stamping process makes the cage lightweight with low rotational inertia, suitable for medium- and high-speed operation. Meanwhile, the steel plate material ensures sufficient strength to withstand the radial load transmitted by the rollers.

Compatible Machines and Applications

Compatible Equipment: Planetary gearboxes and main drive systems of CAT 950H/950K/962H/962K loaders and 320D/323D excavators, as well as cylindrical roller bearings for some industrial transmission devices.

Core Purpose: Installed within the cylindrical roller bearing, it isolates and positions the rollers, ensuring even roller distribution, guiding the rollers to roll smoothly on the raceway, reducing friction and wear between rollers, and ensuring efficient operation of the transmission system.