CAT 110-8716 BEARING

CAT 110-8716 (1108716) is a Caterpillar original single-row deep groove ball bearing, suitable for shaft end support in drive systems and hydraulic systems. The following is purely precise information (no additional description):

Core Parameters and Information

Item Details
Part Model: CAT 110-8716 Single-row Deep Groove Ball Bearing

Part Type: Radial ball bearing, bearing radial loads, allowing slight bidirectional axial movement, suitable for medium-to-low speed rotating shaft ends, absorbing vibration and reducing friction

Material: Outer ring / Inner ring: Chromium bearing steel (GCr15), Rollers: GCr15 high-carbon chromium bearing steel, Cage: Reinforced Nylon 66, Seal: Nitrile rubber (NBR)

Key Dimensions: Inner diameter 45.00 mm (1.7717 in), Outer diameter 85.00 mm (3.3465 in), Width 20.00 mm (0.7874 in), Chamfer 0.5×45°, Radial clearance C3 Grade (0.012-0.025 mm)

Structural Features: Double-sided stamped steel dust cover, non-contact seal, integral nylon cage structure, no oil groove, suitable for grease lubrication, used for radial positioning support at the shaft end.

Compatible Structures: Loader gearbox input shaft bearing, excavator swing motor output shaft bearing, grader hydraulic pump drive shaft bearing, road roller vibratory pump input shaft bearing.

Applicable Working Conditions: Suitable for -30℃ to 120℃, radial load ≤18 kN, limiting speed 6000 rpm, rated speed 4500 rpm, suitable for intermittent impact conditions.

Compatible Models and Assemblies:

Loaders: CAT 938M, 950M (gearbox input shaft assembly, hydraulic pump drive shaft assembly)
Excavators: CAT 320GC, 323GC (swing motor output shaft assembly, stick cylinder bottom support assembly)
Graders: CAT 140M, 160M (Hydraulic pump input shaft assembly, steering cylinder support assembly)
Road rollers: CAT CS66B, CS76B (Vibration pump input shaft assembly, travel motor support assembly)
Compatible assemblies: 950M gearbox input shaft bearing assembly, 320GC rotary motor output shaft bearing assembly, 140M hydraulic pump drive shaft bearing assembly
Installation and Fitting Points
The bearing should have an interference fit with the shaft, with an interference amount of 0.005-0.012 mm; and a transition fit with the bearing housing, with a clearance of 0-0.010 mm. Cold fitting or press fitting should be used, with a pressure ≤50 kN. Do not strike the inner/outer ring.

Before installation, clean the journal and bearing housing bore, ensuring there are no burrs, oil stains, or rust. Check the bearing seals for damage and the raceways for scratches or pitting.

After installation, the bearing end face fits snugly with the positioning surface, with a coaxiality ≤0.02 mm, smooth operation without jamming or abnormal noise, and axial movement ≤0.03 mm.

The bearing is pre-filled with lithium-based grease (NLGI 2 grade) before installation, requiring no additional grease injection. The grease lubrication cycle is 2000 working hours.