Description
CAT 9T-3882 BEARING AS
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The CAT 9T-3882 is a Caterpillar genuine cylindrical roller bearing assembly, suitable for rotating parts such as hydraulic pumps and gearboxes, bearing heavy radial loads and providing stable transmission. The following is precise original part information:
Core Technical Parameters
Item Details
Part Model: CAT 9T-3882 (9T3882) Cylindrical Roller Bearing Assembly, weighing approximately 0.32 kg (0.7 lbs), composed of an inner ring, outer ring, cylindrical rollers, and a stamped cage. It bears only radial loads and is suitable for medium-to-high speed rotating conditions.
Core Materials: Inner Ring/Outer Ring (High-carbon chromium bearing steel, integrally hardened HRC 60-64); Rollers (High-carbon chromium bearing steel, hardness HRC 62-66); Cage (08Al steel plate stamping, galvanized surface, corrosion resistant)
Key Dimensions: Inner diameter 40 mm, outer diameter 68 mm, total width 15 mm, roller diameter 7 mm mm, number of rollers 12, inner/outer ring thickness 15 mm, fillet radius 1 mm
Rated parameters: Rated radial dynamic load 28.2 kN, rated radial static load 27.5 kN, limiting speed (grease lubrication) 5600 rpm, (oil lubrication) 7800 rpm, suitable temperature -40℃ to +120℃
Suitable working conditions: Radial heavy load, medium and high speed conditions such as hydraulic pump spindle support, gearbox input shaft radial positioning, transfer case intermediate shaft rotation support, etc., cannot withstand axial loads
Suitable models: CAT 320D/323D excavator (hydraulic pump spindle), 966H/972H loader (gearbox input shaft), 140M grader (transfer case intermediate shaft), 3406E/C15 engine (auxiliary drive shaft)
Accessories: 5P-7562 adapter shaft retaining ring, 6V-7853 bearing housing locating ring, fixing bolts 8T-4127, Grease Nipple 1U-8878 Core Functions and Structural Features:
Radial Heavy-Duty Bearing: Cylindrical rollers make line contact with the inner and outer rings, suitable for radial heavy-duty conditions, providing strong load-bearing capacity, reducing frictional resistance during rotation, and ensuring transmission efficiency and stability.
High-Speed Adaptability: The stamped cage guides the rollers to be evenly distributed, reducing the impact of centrifugal force during high-speed operation, suitable for medium and high-speed rotation, reducing vibration and noise, and improving equipment operating accuracy.
Easy Assembly: The separable inner/outer ring structure facilitates installation and disassembly without special tools, allowing for quick on-site maintenance and shortening downtime.
Wear and Corrosion Resistance: The bearing steel material with hardening treatment and galvanized cage for corrosion resistance make it suitable for humid and dusty conditions, extending service life and reducing maintenance frequency.
