CAT 170-9965 BEARING

CAT 170-9965 is a Caterpillar original single-row deep groove ball bearing, suitable for rotating parts such as gearboxes and drive axles in construction machinery. The following is purely accurate information (without additional description):

Core Parameters and Information

Item Details
Part Model: CAT 170-9965 (1709965) Single-row Deep Groove Ball Bearing

Part Type: Single-row deep groove ball bearing, used for gearbox input shaft and differential half-shaft support, bearing radial loads, suitable for medium-speed, medium-load conditions, and can withstand slight bidirectional axial loads.

Material: Inner ring / Outer ring / Balls are made of high-carbon chromium bearing steel (AISI 52100), cage is made of stamped steel plate, seal is made of nitrile rubber (NBR), suitable for lithium-based grease (NLGI 2).

Key Dimensions: Inner diameter 40.00mm (1.5748in), outer diameter 80.00mm (3.1496in), width 23.00mm (0.9055in), chamfered 1.5×45°, inner ring tolerance k5, outer ring G6
Structural Features: Double-sided contact rubber seal (non-contact type optional), with cage, rated dynamic load 29.5kN, rated static load 15.2kN, limiting speed (grease lubrication) 6000rpm, operating temperature -30℃ to 120℃
Compatible Structures: Suitable for gearboxes and drive axles of small tracked loaders and excavators, suitable for shaft diameter 40mm, mounting hole diameter 80mm, installation interference 0.008-0.018mm
Applicable Working Conditions: Rotating mechanisms such as gearboxes and drive axles, speed ≤5000rpm, radial load ≤20kN, suitable for lithium-based grease lubrication
Compatible Models and Assemblies:
Loaders: CAT 906H2, 907H2 (gearbox input shaft support bearing)
Excavators: CAT 305.5E2, 306E2 (Slewing Platform Drive Axle Half-Shaft Bearing)
Grader: CAT 120M2 (Gearbox Output Shaft Bearing Assembly)
Compatible Assemblies: 906H2 Gearbox Input Shaft Bearing Assembly, 305.5E2 Drive Axle Half-Shaft Bearing Assembly
Installation and Fitting Points:
* Before installation, clean the journal and bearing housing bore, ensuring no burrs or rust. Use cold pressing for installation, employing a special press tool to press the inner ring (shaft fit) or outer ring (bore fit). Do not directly strike the bearing end face.
* After installation, the inner ring should have an interference fit with the shaft (0.008-0.018mm), and the outer ring should have a transition fit with the bearing housing (clearance 0.002-0.012mm), ensuring smooth and unobstructed rotation.
* After assembly, check the coaxiality to be ≤0.02mm. No additional grease is required after installation (pre-lubricated sealed type). Non-sealed types require periodic grease application.

Use a special puller to remove the bearing during disassembly. Do not pry the bearing edges. When replacing, check the wear of the journal and bearing housing. If the wear is greater than 0.04mm, it needs to be repaired or replaced.