CAT 005-2344 BEARING

CAT 005-2344 is a Caterpillar genuine tapered roller bearing (pure original factory information, no additional description):

Core Parameters and Information

Item Details
Part Model: CAT 005-2344 (0052344) Bearing

Part Type: Single row tapered roller bearing, bearing radial + unidirectional axial combined load, commonly used in hubs, gearboxes, differentials, and other transmission parts

Material: Inner ring / Outer ring / Rollers: Chromium bearing steel (GCr15), Cage: Stamped steel plate, Heat treatment: Quenching + Tempering, Hardness HRC60-64

Key Dimensions: Inner diameter 65.00 mm, Outer diameter 140.00 mm, Width 33.00 mm, Taper angle 12°51′, Number of rollers: 16, Roller diameter 15.00 mm

Structural Features: Separate structure (inner ring + Roller assembly (separable from outer ring), with stamped cage; outer ring with retaining groove, can be fitted with retaining ring.

Surface Treatment: Rollers and raceways are ultra-precision ground, surface roughness Ra≤0.4μm; outer ring is blackened for rust prevention.

Matching: Inner ring interference fit with shaft (k5), outer ring transition fit with bearing housing (J7).

Rated Load: Radial rated dynamic load 112 kN, radial rated static load 138 kN, axial rated dynamic load 38 kN, axial rated static load 75 kN

Limiting Speed: Grease lubrication 3200 r/min, oil lubrication 4000 r/min

Operating Temperature: -40℃ ～ +120℃

Weight: 1.85 kg

Compatible Models and Assemblies:
Excavators: CAT 320D2, 323D2 (travel motor reduction gearbox, slewing bearing gearbox)
Loaders: CAT 950M, 966M (Drive axle hub, gearbox output shaft)

Matching parts: 005-2344 Bearing, bearing housing, shaft, lock nut, retaining ring, grease nipple, seal ring

Installation and fitting points:

Clean the journal and bearing housing bore, removing burrs, oil, and rust. Journal roughness Ra≤0.8μm, bearing housing bore roughness Ra≤1.6μm.

Inner ring heating installation (oil temperature 80-100℃, open flame heating prohibited). Press the outer ring smoothly into the bearing housing using a press, avoiding striking the bearing end face.

Post-installation inspection: Bearing end face runout ≤0.05 mm, radial clearance 0.015-0.035 mm, no jamming or abnormal noise.

Tighten the lock nut to the specified torque. Install the retaining ring to secure the outer ring and prevent axial movement.

Install the seal ring and grease nipple, adding lithium-based grease until overflowing.