Description
CAT 002-7338 BEARING
| CAT 002-7338 BEARING |
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| CAT 003-7500 CUP |
| CAT 003-8674 BUSHING |
| CAT 004-4555 RETAINER |
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| CAT 005-2344 BEARING |
CAT 002-7338 is a Caterpillar genuine double-row self-aligning roller bearing (pure original factory information, no additional description):
Core Parameters and Information
Item Details
Part Model: CAT 002-7338 (0027338) Bearing
Part Type: Double-row self-aligning roller bearing, primarily bearing radial loads, capable of withstanding small amounts of bidirectional axial loads, allowing for a certain degree of misalignment between the shaft and bearing housing
Material: Inner ring, outer ring, rolling elements: High-carbon chromium bearing steel (GCr15), cage: Solid brass cage
Key Dimensions: Inner diameter 110.00 mm (J7), outer diameter 200.00 mm (m6), width 53.00 mm, chamfer 2×45°
Structural Features: Double-row symmetrical spherical rollers, inner ring with tapered bore, can be installed via adapter sleeve, no seal ring, non-separable structure
Surface Treatment: Inner and outer ring surfaces hardened + ground, roller surfaces ultra-fine ground, cage brass finish
Match Clearance Radial clearance: C3 group (0.030–0.050 mm), interference fit between inner ring and adapter sleeve
Operating temperature: -40℃ ～ +120℃
Rated load: Radial rated dynamic load 185 kN, radial rated static load 212 kN, axial rated dynamic load 45 kN, axial rated static load 105 kN
Permissible speed: Grease lubrication ≤ 2400 rpm, oil lubrication ≤ 3200 rpm
Weight: 4.72 kg
Compatible models and assemblies:
Excavators: CAT 316D2, 318D2, 320D2 (slewing bearing, travel gearbox input shaft)
Loaders: CAT 938M, 950M, 962M (transmission shaft 2, drive axle differential)
Matching parts: 002-7338 Bearings, adapter sleeves, locking washers, lock nuts, lithium-based grease
Installation and Fitting Points:
Clean the shaft, bearing housing, and adapter sleeve, removing burrs and rust. The journal roughness Ra ≤ 0.8μm, and the bearing housing bore roughness Ra ≤ 1.6μm.
Use adapter sleeve installation. First, fit the adapter sleeve onto the journal, then install the bearing. Tighten the lock nut evenly and lock it with the locking washer.
After installation, the bearing radial clearance should meet the C3 group requirements, rotating freely without jamming or abnormal noise.
Fill the bearing with lithium-based grease before assembly. After assembly, check the grease level to ensure adequate lubrication.
