CAT 586-7458 BEARING-CUP-GD

CAT 586-7458 YM is a Caterpillar genuine single-row cylindrical roller bearing outer ring, suitable for excavator/loader gearbox gear shaft bearing assemblies. The following is purely accurate information (without additional description):

Core Parameters and Information

Item Details
Part Model: CAT 586-7458 YM (5867458) Single-row cylindrical roller bearing outer ring

Part Type: Matches CAT 208-9009 bearing, for radial load applications, compatible with separable inner rings

Material: SAE 52100 high-carbon chromium bearing steel, hardened to HRC60-64, raceway surface roughness Ra≤0.08μm

Key Dimensions: Inner diameter 85.00mm, outer diameter 130.00mm, width 20.00mm, chamfer at both ends 1.0×45°, raceway diameter 85.00mm

Structural Features The outer ring features a single flange, and the raceway is ultra-precision ground. It is compatible with the 208-9009 bearing roller assembly and works with the inner ring (584-1175 GD).

Compatible Structure: Bearing housing fit tolerance J7, interference fit with bearing housing 0.005-0.015mm, operating temperature -40℃ to +120℃, rated load 85kN.

Lubrication Requirements: Oil lubrication (CAT DEO-ULS 15W-40) or grease lubrication (CAT 4V-9668), grease filler filler should be 1/3 of the bearing cavity.
Compatible Machines and Assemblies:
Excavators: CAT 320GC, 323GC (transmission shaft 2)
Loaders: CAT 938M, 950M (transfer case output shaft)
Compatible Assemblies: Transmission/transfer case gear shaft support bearing assembly
Matching Parts: 586-7458 YM outer ring, 584-1175 GD Inner ring, 208-9009 bearing, 8T-4125 elastic retaining ring
Installation and Fitting Points
**Before installation, clean the outer ring raceway and bearing housing bore, ensuring no iron filings or oil contamination.** Cold press installation is required; pressure ≤20kN. Do not strike the outer ring end face to avoid deformation.

The bearing housing fit tolerance is J7. The interference fit between the outer ring and the bearing housing is 0.005-0.015mm. After installation, the outer ring end face should fit snugly against the bearing housing locating surface without gaps.

After assembly with the inner ring (584-1175 GD), the rollers should have uniform contact with the raceway, rotate without jamming, and have a radial clearance of 0.010-0.020mm.

Use a dedicated puller for disassembly to avoid damaging the bearing housing/outer ring. When replacing, check that the wear on the bearing housing’s inner diameter is ≤0.05mm. If the wear exceeds this tolerance, repair the bearing housing simultaneously.