CAT 170-6312 BEARING-MOUN

CAT 170-6312 is a Caterpillar bearing-mount (deep groove ball bearing assembly) for positioning and supporting shafts in engine/transmission systems. It is used in power components of small and medium-sized construction machinery and features high precision, low friction, and long service life, ensuring stable and efficient power transmission. The following is the core information:

Core Technical Parameters
Item Details
Part Model CAT 170-6312 (1706312) Mounting Bearing, a deep groove ball bearing assembly, including bearing body, mounting seat, locating ring, and seals, suitable for installation scenarios with a shaft diameter of 60mm Cat®…

Material
Bearing Rings / Steel Balls: 52100 bearing steel, hardened to HRC60-64; Cage: Stamped steel plate / Nylon 66; Seal: Nitrile rubber (NBR) double lip seal; Mounting Seat: 45# steel, quenched and tempered, galvanized for corrosion protection

Key Dimensions
Inner Diameter 60mm, Outer Diameter 130mm, Width 31mm, Mounting Seat Outer Diameter 150mm, Locating Groove Diameter 120mm, Bolt Hole Spacing 140mm, Single Set Weight Approx. 1.8kg

Compatible Models
CAT 305.5E2/306E2 Excavator, 3126B Suitable for small and medium-sized equipment such as engines and 906H loaders, with operating speeds ≤6000rpm and radial loads ≤85kN.

Performance Parameters: Radial rated dynamic load 85.2kN, radial rated static load 52.8kN, limiting speed (grease lubrication) 3600rpm, operating temperature -40℃ to 120℃, sealing protection rating IP65, suitable for oil/grease lubrication environments.

Core Functions and Structural Features:

Precise Positioning: The deep groove ball bearing structure can simultaneously withstand radial and bidirectional axial loads, adapting to radial positioning and minor axial movement compensation in shaft systems, ensuring coaxiality of power transmission.

Low Resistance and High Efficiency: High-precision steel balls + cage design, friction coefficient ≤0.0015, reducing power loss, suitable for medium and high speed shaft systems (≤3600rpm), improving equipment fuel economy.

Sealing Protection: Double-lip seal + dust cover combination, preventing oil, dust, and moisture intrusion, suitable for dusty and humid conditions, extending bearing life and reducing maintenance frequency.

Easy installation: Includes an integrated mounting base and positioning ring, which can be directly bolted without additional processing. After installation, the coaxiality error is ≤0.02mm, ensuring smooth operation of the shaft system.