CAT 361-1906 60mm Spherical Bearing

CAT 361-1906 (3611906) is a Caterpillar original single-row cylindrical roller bearing (NU type, no inner ring flange), suitable for radial support in drive systems, hydraulic pumps, and rotary mechanisms. The following is purely precise information (no additional description):

Core Parameters and Information

Item Details
Part Model: CAT 361-1906 Single-row cylindrical roller bearing (NU type)

Part Type: NU type cylindrical roller bearing, bearing only radial loads, allowing bidirectional axial displacement of the shaft relative to the bearing housing, suitable for medium- and high-speed rotating shaft systems, used for radial positioning and friction reduction across long shaft spans

Material: Outer ring/inner ring: GCr15 high-carbon chromium bearing steel, rollers: GCr15, cage: stamped steel plate, no seal, suitable for oil lubrication

Key Dimensions: Inner diameter 65.00 mm (2.5591 in), outer diameter 100.00 mm (3.9370 in), width 20.00 mm mm (0.7874 in), chamfer 1×45°, radial clearance C3 grade (0.015-0.028 mm)

Structural Features: Inner ring without flange, outer ring with double flange, stamped steel plate cage, no seal, no oil groove or oil hole, suitable for oil lubrication systems, used for radial support and axial free displacement compensation of shaft systems.

Compatible Structures: Loader gearbox second shaft bearing, excavator swing reducer input shaft bearing, grader hydraulic pump drive shaft bearing, road roller vibratory motor output shaft bearing.

Applicable Working Conditions: Suitable for -20℃ to 150℃, radial load ≤32 kN, limiting speed 8000 rpm, rated speed 6000 rpm, suitable for continuous rotation and impact conditions.

Compatible Models and Assemblies:

Loaders: CAT 966M, 972M (gearbox second shaft bearing assembly, hydraulic pump drive shaft assembly)

Excavators: CAT 330GC, 336GC (Slewing reducer input shaft bearing assembly, boom cylinder bottom support bearing assembly)
Grade: CAT 14M, 16M (Hydraulic pump input shaft bearing assembly, steering cylinder support bearing assembly)
Road Roller: CAT CS78B, CS94B (Vibration motor output shaft bearing assembly, travel drive shaft bearing assembly)
Adaptor Assemblies: 966M gearbox two-shaft bearing assembly, 330GC slewing reducer input shaft bearing assembly, 14M hydraulic pump drive shaft bearing assembly
Installation and Fitting Points:
Bearings should have an interference fit with the shaft, with an interference of 0.008-0.015 mm; and a transition fit with the bearing housing, with a clearance of 0-0.012 mm. Cold fitting or press fitting should be used, with a pressure ≤60 kN. Do not strike the inner/outer ring.

Before installation, clean the journal and bearing housing bore, ensuring they are free of burrs, oil stains, and rust. Inspect the bearing raceway for scratches and pitting, and check the cage for deformation.

After installation, ensure the bearing end face aligns with the locating surface, with a coaxiality ≤0.02 mm. Operation should be smooth without jamming or abnormal noise, and axial displacement should meet design requirements.

Oil lubrication is recommended. ISO VG 46 hydraulic oil is suggested. Maintain the oil level at the center of the lowest rolling element of the bearing, and synchronize the lubrication cycle with the main engine oil lubrication system.