CAT 535-1628 BEARING

CAT 535-1628 is a Caterpillar original single-row cylindrical roller bearing, suitable for heavy-duty transmission components such as gearboxes and drive axles in engineering machinery. It is used to withstand pure radial loads under high-speed, heavy-load conditions. The following is purely precise information (without additional description):

Core Parameters and Information

Item Details
Part Model: CAT 535-1628 (5351628) Single-row Cylindrical Roller Bearing

Part Type: Cylindrical roller bearing, pure radial load bearing, suitable for high-speed, heavy-load components such as gearbox gear shafts and differential half-shafts

Material: Bearing steel (AISI 52100), hardness HRC61-65, polished roller surface, stamped brass cage

Key Dimensions: Inner diameter 75.00mm, outer diameter 115.00mm, width 24.00mm, roller diameter 8.00mm, number of rollers 14, chamfer 1.2×45°

Structural Features The outer ring has one oil groove and three oil holes; the inner ring has no flange; the cage is made of brass; radial clearance is C3 (0.020-0.040mm).

Compatible Structure: Compatible journal diameter 75.00mm (tolerance h6), bearing housing bore diameter 115.00mm (tolerance H7), interference fit 0.012-0.022mm.
Applicable Working Conditions: Working load ≤350kN, working temperature -40℃ to +150℃, suitable speed ≤4500rpm, recommended lubrication with SAE 85W-90 gear oil.

Rated Load: Basic rated dynamic load 128kN, basic rated static load 135kN, fatigue life L10≥8000h.
Compatible Machines and Assemblies:
Excavators: CAT 336D2, 349D2 (gearbox second shaft, swing reduction gearbox sun gear shaft)
Loaders: CAT 966K, 972K (Drive axle differential half-shaft, gearbox output shaft)

Compatible assemblies: 336D2 gearbox two-shaft bearing assembly, 966K drive axle differential bearing assembly

Matching parts: 535-1629 bearing, 161-8218 bearing, 161-8220 seal ring, 161-8221 retaining ring, 5P-1949 bearing cup

Installation and fitting points: Clean the journal, bearing housing bore, and bearing before installation, ensuring no iron filings or oil contamination. Use hot fitting (oil temperature 90-110℃) or cold pressing, pressure ≤50kN. Do not strike the rollers and raceways.

Journal fit tolerance h6, bearing housing bore fit tolerance H7. After installation, radial runout ≤0.02mm, end face runout ≤0.03mm, radial clearance 0.020-0.040mm.

After installation, check that the bearing fits snugly against the journal and bearing housing without any gaps, and that the gear shaft rotates smoothly without jamming. Add gear oil as per the equipment manual.

Use a dedicated puller for disassembly to avoid deformation of the inner ring or damage to the journal. Replacement is recommended in pairs (on the same side).