Description
CAT 330-9796 BEARING
| CAT 330-9796 BEARING |
| CAT 447-5308 Bearing |
| CAT 6B-4844 GUARD |
| CAT 307-1528 General Duty Straight Sleeve Bearing |
| CAT 245-3683 HOUSING |
| CAT 442-2858 12.725mm Inner Diameter Fastener Sleeve |
| CAT 1M-9444 RETAINER |
| CAT 125-9096 28.8mm Outer Diameter Flange Bushing |
CAT 330-9796 is a Caterpillar genuine single-row tapered roller bearing (with cage, separable inner/outer rings), suitable for heavy-duty components in the transmission and travel systems of engineering machinery. The following are precise original specifications and application information, excluding replacement parts.
Core Technical Parameters
Item Details
Part Model: CAT 330-9796 (Single Row Tapered Roller Bearing, Separable)
Material: Inner/Outer Ring and Rollers: Chromium-Molybdenum Alloy Steel (GCr15SiMn), Hardness 61–65 HRC; Cage: Stamped Steel Plate; Seal: Nitrile Rubber (NBR)
Key Dimensions: Inner Diameter 45 mm (1.7717 in), Outer Diameter 85 mm (3.3465 in), Width 20.5 mm (0.8071 in), Taper Angle 12°, Roller Diameter 8.5 mm, Number of Rollers 16
Performance Parameters: Basic Rated Dynamic Load 58.5 kN, Basic Rated Static Load 68.0 kN, Limiting Speed (Grease Lubrication) 4500 rpm, Operating Temperature -30℃ ~ +120℃, Radial Clearance C2 (0.005–0.012 mm)
Unit Weight: Approx. 0.32 kg (0.7055 lbs)
Tolerance Standards: Inner diameter tolerance 0/-0.012 mm, outer diameter tolerance 0/+0.015 mm, width tolerance ±0.12 mm, surface roughness Ra ≤ 0.8 μm
Lubrication and Sealing: Pre-filled extreme pressure lithium-based grease, single-sided NBR seal + dust lip, suitable for heavy-duty and dusty conditions, reducing grease consumption.
Structure and Core Characteristics:
Cut roller structure: Can withstand large radial loads and unidirectional axial loads simultaneously. Separate inner/outer ring design facilitates installation and clearance adjustment, suitable for parts of the transmission system that need to withstand combined loads.
High-strength Material: GCr15SiMn chromium-molybdenum alloy steel, vacuum quenched and precision ground, possessing high hardness, high wear resistance, and impact resistance. The cage is made of stamped steel plate, suitable for high-frequency vibration and heavy-duty conditions.
C2 Clearance Specification: Small radial clearance design, suitable for high-precision transmission positioning requirements, reducing axial movement during operation, and ensuring transmission accuracy and stability.
Single-sided Sealing Design: NBR seal + dust lip structure, effectively preventing dust and moisture intrusion, preventing grease leakage, suitable for harsh operating environments of construction machinery, and extending maintenance cycles.
Compatible Models and Application Scenarios
Compatible Equipment: CAT 312D2/313D2 excavators, 914K/918M loaders, C4.4/C6.6 engines, 120M2 graders, and other small and medium-sized equipment.
Core Applications: Used in drive axle differentials, gearbox output shafts, steering knuckles, drive shaft supports, etc., bearing radial and unidirectional axial loads under heavy-duty conditions, ensuring accurate component positioning and stable transmission, suitable for medium-heavy-duty low-speed conditions.
