Description
CAT 6V-2830 BEARING
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The CAT 6V-2830 is a Caterpillar original single-row deep groove ball bearing, commonly used in high-speed, light-load components such as engine fan drives and hydraulic pump spindles. The following is structured raw data and does not include replacement parts information.
Core Technical Parameters (Raw Data)
Item Details
Basic Attributes
Model: 6V-2830, Type: Single-row deep groove ball bearing (with dust cover), Material: High carbon chromium bearing steel (100Cr6), Double-sided stamped dust cover (non-contact type), Single weight: 0.18 kg, Operating temperature: -40℃ to +120℃, Suitable shaft diameter: φ35 mm, Limiting speed: 6000 r/min (grease lubrication), 4000 r/min (oil lubrication), Radial load: ≤18 kN, Axial load: ≤5 kN
Key Dimensions
Inner diameter: 35.0 mm (1.378 in), Outer diameter: 72.0 mm (2.835 in), Width: 17.0 mm (0.669 in), Chamfer size: rs min=1.0 mm, Mounting hole diameter: φ35 mm, Bearing clearance: C3 (radial clearance 0.015-0.035 mm), Inner diameter tolerance: 0/-0.012 mm, outer diameter tolerance 0/-0.015 mm, width tolerance ±0.12 mm, inner ring roundness ≤0.008 mm, outer ring cylindricity ≤0.012 mm
Compatible Models and Parts: Compatible with Cat C7/C9 engine fan hub, 320D/323D excavator hydraulic pump drive shaft, and 950H loader gearbox input shaft front end. One piece per location, used for high-speed rotation support and reducing transmission system friction.
Performance Parameters: Basic rated dynamic load Cr=25.5 kN, basic rated static load C0r=14.2 kN, fatigue life L10≥12000 hours, grease filling amount 12±2 g, grease type Cat DEO-ULS special bearing grease, coefficient of friction μ≤0.002 (grease lubrication condition)
Structural and Performance Advantages:
Bearing steel material: High hardness (HRC) High wear resistance (60-64 mm), suitable for high-speed rotation, and excellent fatigue resistance.
Double dust cover design: Prevents dust and moisture from entering the bearing, extending grease life and reducing maintenance frequency.
C3 clearance configuration: Suitable for operating conditions with large temperature variations, preventing bearing seizure due to thermal expansion and contraction, and ensuring smooth operation.
Precision dimensional tolerances: Strict tolerances for inner and outer diameters and width ensure precise fit with the shaft and bearing housing, reducing vibration and noise.
Installation and maintenance points (raw data)
Installation procedure: Clean the journal and bearing housing bore. Heat the bearing to 80-100℃ (oil temperature heating) before heat fitting. Do not strike the inner or outer rings of the bearing. After installation, check radial runout ≤0.05 mm and axial runout ≤0.08 mm. Tighten the bearing housing bolts to a torque of 35-45 N·m.
Maintenance cycle: Check bearing temperature (≤80℃), noise, and vibration every 2000 hours. For grease-lubricated bearings, replenish grease every 4000 hours; for oil-lubricated bearings, change the lubricating oil every 6000 hours.
Common troubleshooting: For excessively high temperature, check lubrication and clearance; for abnormal noise, check bearing wear or foreign object ingress; for excessive vibration, check installation accuracy or shaft bending, and replace the bearing if necessary.
