CAT 470-6084 6.25\ Sleeve Bearing

CAT 470-6084 is a Caterpillar genuine single-row tapered roller bearing (including inner ring, outer ring, cage, and roller assembly, suitable for medium and heavy-duty equipment drive systems) used in the final drive, gearbox, or drive axle of excavators and loaders. The following is pure raw data and does not include replacement parts information (Cat® Parts).

Core Technical Parameters (Raw Data)

Item Details
Basic Attributes
Model 470-6084, Type: Single Row Tapered Roller Bearing (Imperial, Outer Ring with Flange), Material: Inner Ring / Outer Ring / Roller: SAE 52100 Carburized Alloy Steel, Cage: SPCC Low Carbon Steel + Zinc Passivation, Weight: 2.35 kg, Applicable Operating Conditions: Medium Speed ​​Heavy Load (Linear Speed ​​≤12 m/s), Operating Temperature: -40℃ to +180℃, Lubrication: Extreme Pressure Lithium-Based Grease / Gear Oil, Protection Class: IP54, Accuracy Class: P6, Clearance Class: C3, Rated Life: L10≥15000 hours (under rated load)

Key Dimensions (Imperial / Metric)
Inner Diameter d=4.000 in (101.600 mm, Tolerance 0/-0.015 mm), Outer Diameter D=6.500 in (165.100 mm, Tolerance 0/-0.015 mm), 0/+0.020 mm), width B=1.500 in (38.100 mm, tolerance ±0.010 mm), number of rollers 20, roller diameter φ14.2875 mm (tolerance ±0.02 mm), roller length 25.4 mm (tolerance ±0.03 mm), contact angle 17° (tolerance ±1°), outer ring flange thickness 6.35 mm (tolerance ±0.05 mm)

Performance parameters: Radial rated dynamic load Cr=145 kN, radial rated static load C0r=180 kN, axial rated dynamic load Ca=45 kN, axial rated static load C0a=55 kN, limiting speed (grease lubrication) 2800 rpm, reference speed (oil lubrication) 4000 rpm, initial radial clearance 0.18-0.25 mm, coefficient of friction μ≤0.0025, impact load capacity ≥1.8 Double Rated Dynamic Load
Structural and Performance Advantages
Outer Ring with Flange Structure: The flange is used for axial positioning, suitable for components requiring precise positioning such as gearboxes and drive axles. No additional axial fasteners are needed after installation, simplifying the assembly process.

Carburized Alloy Material: SAE 52100 carburized and quenched, surface hardness HRC 60-64, core hardness HRC 30-40, combining high wear resistance and impact resistance, suitable for vibration and impact conditions in engineering machinery.

Galvanized Cage: SPCC low-carbon steel cage with galvanized passivation, strong rust prevention, precise pocket clearance (0.12-0.18 mm), guiding the rollers to operate stably and reducing friction and wear.

C3 Clearance Design: Adapts to thermal expansion under high-temperature conditions, preventing bearing seizure while ensuring operational accuracy, compatible with Cat original equipment manufacturer (CAT) assembly standards.

Installation and Maintenance Points (Original Data)

Installation: Clean the journal and bearing housing bore (free from oil and burrs). Hot-fit the inner ring (80-100℃), cold-fit the outer ring. Use the outer ring flange for axial positioning. After installation, control the axial preload at 60-90 N·m. Check the radial clearance to be 0.18-0.25 mm. The bearing should rotate freely without jamming, and the coaxiality should be ≤0.02 mm.

Maintenance: Every 1500 hours, check the bearing temperature (≤80℃), noise (≤70 dB), and clearance. If the clearance exceeds 0.4 mm or if roller pitting or cage deformation occurs, replace immediately. For grease lubrication, replenish grease every 2000 hours (filling 1/3-1/2 of the bearing cavity). Troubleshooting: Common faults include overheating and wear caused by poor lubrication and uneven load caused by installation deviation. It is necessary to replace the bearing and check the lubrication system, journal/bearing housing roundness (≤0.01 mm), and strictly control coaxiality and clearance during installation.