CAT 141-2450 Bearing – Ball(Debris Resistant)

CAT 141-2450 is a Caterpillar genuine single-row tapered roller bearing (including inner and outer rings), suitable for heavy-duty applications such as drive axles and main reducers in heavy-duty construction machinery. The following are precise original factory specifications and application information, excluding replacement parts.

Core Technical Parameters

Item Details
Part Model: CAT 141-2450 (Single Row Tapered Roller Bearing, including inner ring cone + outer ring cup)

Material: Inner ring/outer ring/roller are made of high carbon chromium bearing steel (AISI 52100), hardness 60–64 HRC; cage is made of stamped steel plate, galvanized for corrosion protection.

Key Dimensions: Inner diameter 80 mm (3.150 in), outer diameter 140 mm (5.512 in), width 42 mm (1.654 in), cone angle 10°, chamfer radius r=2.5 mm

Rated Parameters: Radial rated dynamic load 128.0 kN, radial rated static load 155.0 kN; Axial rated dynamic load 62.0 kN, axial rated static load 85.0 kN; Limiting speed 4000 rpm (oil lubrication), 2800 rpm (grease lubrication); Operating temperature -30℃ ~ +120℃
Single Weight: Approx. 2.25 kg (4.960 lbs)
Tolerances: Inner diameter tolerance P6, outer diameter tolerance P6, radial clearance C3, contact angle accuracy ±15′, radial runout ≤ 0.018 mm, surface roughness Ra ≤ 0.4 μm
Surface Treatment: Blackened inner and outer ring surfaces, polished roller surfaces, suitable for oil or grease lubrication, improving fatigue resistance and wear resistance.
Structure and Core Characteristics:
Single-row tapered roller structure: The rollers and raceways have a tapered contact, capable of simultaneously bearing large radial loads and unidirectional axial loads, suitable for drive axles, main reducers, and other composite stress components, transmitting heavy loads and absorbing vibrations.

Modular Design: Inner ring, outer ring, rollers, and cage are supplied as a single unit, facilitating installation, precise positioning, and fitting within the compact space of heavy equipment drive axles, making maintenance and replacement easy.

High-precision manufacturing: P6 tolerance and C3 clearance ensure stable operation at low and medium speeds, reduce vibration and noise, and are suitable for heavy-duty operations of heavy equipment such as loaders and excavators.

Impact-resistant reinforcement: The stamped steel plate cage has strong impact resistance, suitable for harsh working conditions such as mining and infrastructure construction, extending bearing life and reducing downtime due to failures.

Compatible models and application scenarios:
Compatible equipment: CAT 966M/972M loaders, 336GC/349GC excavators, D6T bulldozers, and other heavy construction machinery.

Core applications: Used in drive axle main reducers, differential housings, drive shaft supports, etc., to transmit heavy loads, absorb vibration, and ensure stable operation of components, suitable for medium and heavy-duty operations in mining, infrastructure, and other similar conditions.