Description
6I-8676: 110mm Internal Diameter Steel Bearing
| 6I-8676: 110mm Internal Diameter Steel Bearing |
| 462-0407: BEARING-ROLL |
| 296-6248: Bearing – Needle(Debris Resistant) |
| 539-1899: 520.5mm Outer Diameter Bolt On Seal Ring |
| 197-6439: Internal Diameter 76.20mm Self Aligning Bearing |
| 105-8281: Single Flanged Steel Roller |
| 274-7469: Bearing – Needle(Debris Resistant) |
| 199-4582: Bearing – Needle(Debris Resistant) |
Cat 6I-8676 is a Caterpillar single-row cylindrical roller bearing with an inner diameter of 110mm. It is suitable for the gearboxes, drive axles, or slewing mechanisms of heavy machinery such as loaders and bulldozers, and is used to withstand high radial loads and low-to-medium speed conditions. The following are the precise core information:
Core Parameters (Precise Version)
Item Details
Basic Information
Model 6I-8676, type is single-row cylindrical roller bearing (NU design, separable inner ring, no flange), used in gear shafts, output shafts, etc., of equipment transmission systems, suitable for pure radial heavy loads and shaft thermal expansion conditions, ensuring transmission accuracy and stability.
Suitable Models
Suitable for Cat 950K/L/M loaders, D8N/R/T bulldozers, 777 mining trucks, etc., commonly used in the support parts of the gearbox secondary shaft, drive axle differential shaft, and slewing bearing.
Material and Process
Material is chromium-molybdenum alloy steel (52CrMo4), forged + Overall tempering, hardness HRC30-35; roller and raceway surface hardening, hardness HRC60-64, surface grinding precision Ra≤0.4μm; cage is made of stamped steel plate, possessing high strength and impact resistance.
Key Dimensions: Inner diameter 110mm, outer diameter 180mm, total width 32mm, chamfer C2, roller diameter 15mm, number of rollers 20, weight approximately 3.2kg, dimensional tolerance ±0.02mm, interference fit with shaft 0.015-0.03mm.
Compatible Parts: Compatible shaft model 10-3222 (diameter 110mm, length 300mm), compatible bearing housing model 6I-8677; recommended use of extreme pressure lithium-based grease (model…). (10-9275), coaxiality ≤0.03mm during installation.
Function, Installation, and Maintenance Points:
Core Function: Bears pure radial heavy loads, allows a small amount of axial displacement between the shaft and bearing housing (to accommodate thermal expansion), reduces the friction coefficient of transmission components, reduces wear, ensures efficient operation of the transmission system, and is suitable for heavy-load and continuous operation conditions.
Installation Points: Use hot fitting (oil temperature 80-100℃) to install the inner ring, avoiding hard impact that could cause deformation; after installation, check the radial clearance (0.02-0.05mm) to ensure smooth operation; bearing housing bolt torque value 180-200N・m.
Maintenance Points: Check the lubrication status every 400 hours and replenish grease every 600 hours; when the roller surface shows peeling, wear exceeding 0.15mm, or radial clearance greater than 0.2mm, replace it promptly to prevent abnormal wear between the shaft and bearing housing.
