CAT 119-2206 1.875\ Inner Diameter Inner Race Needle Bearing

CAT 119-2206 (1192206) is a Caterpillar genuine double-row self-aligning ball bearing (open type, cylindrical bore), suitable for radial support in transmission and hydraulic systems, and allows for slight misalignment. The following is purely precise information (no additional description):

Core Parameters and Information

Item Details
Part Model: CAT 119-2206 Double-row self-aligning ball bearing

Part Type: Double-row self-aligning ball bearing, primarily for radial loads, can withstand slight bidirectional axial loads, allows for ≤2° misalignment between shaft and bearing housing, suitable for medium-speed, light-load conditions

Material: Inner ring / Outer ring / Balls: GCr15 bearing steel, Cage: Stamped steel plate, open type without seal, suitable for grease/oil lubrication

Key Dimensions: Inner diameter 30.00 mm (1.1811 in), Outer diameter 62.00 mm (2.4409 in), Width 20.00 mm (0.7874 in), Chamfer 1×45°, radial clearance CN grade (0.005-0.012 mm)

Structural Features: Double row steel balls, spherical raceway, inner ring with two flanges, outer ring without flanges, stamped cage, open structure, suitable for grease or thin oil lubrication, used to compensate for installation misalignment and shaft deflection.

Compatible Structures: Input shaft of mini excavator swing reducer, drive shaft of loader steering pump, support of road roller vibratory shaft, end bearing of hydraulic motor output shaft.

Applicable Working Conditions: Suitable for -30℃ to 120℃, radial dynamic load ≤18.5 kN, radial static load ≤6.8 kN, limiting speed 9000 rpm, rated speed 7000 rpm.

Compatible Models and Assemblies:

Excavators: CAT 305.5E2, 306E2 (swing reducer input shaft bearing assembly, boom cylinder upper hinge point bearing assembly)
Loaders: CAT 906M, 907M (Steering pump drive shaft bearing assembly, boom axle end bearing assembly)
Road roller: CAT CB24B, CB34B (Vibration shaft support bearing assembly, travel drive bearing assembly)
Compatible assemblies: 119-2206 Double row self-aligning ball bearing assembly, 420-1863 Slewing reducer assembly, 510-2974 Steering pump drive shaft assembly
Installation and Fitting Points
Bearings should have a transition fit with the shaft (clearance 0-0.008 mm) and an interference fit with the bearing housing (interference 0.010-0.018 mm). Press-fit pressure ≤40 kN. Do not strike the steel balls or raceways.

Before installation, clean the journal and housing bore, ensuring no burrs/oil/rust. Inspect the bearing raceway for scratches and pitting, and check the cage for deformation.

After installation, the bearing end face should fit snugly against the locating surface, with radial runout ≤0.015 mm, smooth operation without jamming or abnormal noise, and angular misalignment ≤2°.

It is recommended to use CAT lithium-based grease (NLGI grade 2) every 1000 working hours; for oil lubrication, use ISO VG 32 hydraulic oil, with the oil level reaching the center of the lowest steel ball.