CAT 102-2701 BEARING

CAT 102-2701 is a Caterpillar genuine screed adjustment shaft support bearing, adapted for the dynamic camber adjustment mechanism of asphalt pavers. It provides low-friction rotary support and high-precision alignment, ensuring smooth control of the camber angle during paving operations. The following are the original factory specifications and application information, excluding replacement parts.

Core Technical Parameters

Item Details
Part Model: CAT 102-2701 (Screwing Plate Adjustment Shaft Support Bearing, Single Row Radial Ball Bearing, with Seal)

Material: Inner/Outer Ring and Balls: 52100 Chromium Bearing Steel, Hardened to HRC 60-64; Cage: Reinforced Nylon; Seal: Nitrile Rubber (NBR), Rust Resistance IP65

Key Dimensions: Inner Diameter 30 mm (1.181 in), Outer Diameter 62 mm (2.441 in), Width 16 mm (0.630 in), Ball Diameter 7.938 mm, Quantity: 9, Contact Angle 15°

Unit Weight: Approx. 0.185 kg (0.408 lbs)

Tolerances: Inner Diameter Tolerance P6 (+0.012/0 mm), Outer Diameter Tolerance P6 (0/-0.019 mm), Width Tolerance ±0.1 mm, Radial Runout Tolerance ≤ 0.012 mm

Core Features: Dynamic load capacity 19.5 kN, static load capacity 9.8 kN, limiting speed 8000 rpm (grease lubrication), operating temperature -30℃ to +120℃, sealed for dust and oil protection, suitable for high-temperature and dusty operating environments of asphalt pavers.

Structure and Core Functions:

Swivel Support: Provides low-friction screed camber adjustment shaft, ensuring smooth and stable adjustment, adapting to frequent angle adjustments required during paving operations.

Precise Alignment: Features a sealing ring design to prevent dust, asphalt debris, and oil from entering the bearing, ensuring the alignment accuracy of the adjustment shaft, reducing vibration and misalignment, and guaranteeing paving smoothness.

Heavy-Duty Adaptability: Can withstand radial and axial loads transmitted by the adjustment shaft, adapting to dynamic load changes during paver operation, improving the stability and durability of the mechanism.

Compatible Models and Application Scenarios

Compatible Equipment: CAT AP355, AP-300D, AP555, AP-655C, AP500F, BG-2455D, BG-2455C, and other asphalt pavers.

Core Purpose: Installed on the screed’s dynamic camber adjustment unit, it supports the adjustment shaft and maintains centering, suitable for the high-temperature, dusty, and high-vibration conditions of asphalt paving operations, ensuring precise control of the camber angle and improving road paving quality.

Installation and Maintenance Points

Installation: Clean the bearings, journals, and mounting holes. Check the bearings for deformation, rust, and damaged seals. Ensure the journal and mounting hole surfaces are free of scratches and burrs.

Use cold press-fitting. Use a special tool to evenly press the bearing inner ring in. Do not strike the bearing end face to avoid damaging the steel balls and raceways.

After installation, check that the bearing operates smoothly without jamming, the adjustment shaft has no radial runout, and the seals are tightly fitted without leakage.

Maintenance: Check the bearing condition every 1000 hours. If increased noise, increased rotational resistance, or aging of the seals are observed, replace the bearing immediately.

Regularly clean the area around the bearing to remove asphalt and dust buildup, preventing impurities from entering the bearing and affecting lubrication and sealing.

Store the bearing in a sealed, moisture-proof environment to prevent rust, which can affect installation accuracy and service life.