CAT 364-9897 Self Wrapping Reflective Adhesive Sleeve

CAT 364-9897 is a Caterpillar bearing positioning sleeve used for the piston rod/ear hinge point of hydraulic cylinders. It is suitable for bearing installation, positioning, and clearance compensation in equipment such as Cat 336D2/349D excavator stick cylinders, 980M loader bucket cylinders, and D8T bulldozer pusher cylinders. It prevents axial movement of the bearing, bears radial loads, and protects the journal. It is suitable for high-pressure, oscillating, and impact conditions. The following is structured technical and application information:

Core Technical Parameters
Item Details
Basic Attributes
Model 364-9897, Straight-tube positioning sleeve (single), suitable for bearing installation, positioning, and clearance compensation in Cat 336D2/349D excavator stick cylinders, 980M loader bucket cylinders, D8T bulldozer pusher cylinders, etc. Material: 4140 chromium-molybdenum steel (quenched HRC58-62), surface anodized blackening treatment (corrosion resistant, wear resistant), operating temperature -40℃ to +120℃, single weight approximately 1.2 kg. Used for bearing axial positioning, clearance compensation, bearing radial loads, protecting journals, suitable for high pressure, oscillation, and impact conditions.

Key Dimensions
Inner diameter 100 mm (tolerance 0/-0.012 mm), outer diameter 120 mm (tolerance +0.010/0 mm), total length 50 mm (tolerance ±0.10 mm), wall thickness 10 mm. mm, chamfered at both ends 1×45°, fit tolerance k6 (+0.015/-0.002 mm)

Compatible Models: Cat 336D2/349D excavators (boom cylinder lugs), 980M loaders (bucket cylinder piston rod end), D8T bulldozers (bottom hinge point of the pusher cylinder), 966M loaders (upper hinge point of the boom cylinder)

Assembly Fit: Fits snugly to the bearing inner ring end face; inner ring and shaft interference fit (interference 0.010-0.015 mm); sleeve and bearing housing bore transition fit (clearance 0-0.020 mm); journal fillet radius ≤1.5 mm; coaxiality ≤0.03 mm

Installation and Maintenance Points: Before installation, clean the sleeve, journal, and bearing housing bore, checking for scratches, rust, and cracks. Measure the inner diameter of the journal and sleeve to ensure the fit meets requirements; journal fillet radius ≤1.5 mm. To avoid stress concentration, the sleeve should be pressed into the bearing housing bore using a specialized press tool, with a diameter of 0.10 mm. Do not directly strike the sleeve end face to prevent deformation. After installation, check the fit between the sleeve end face and the bearing inner ring to ensure there is no axial clearance.

Maintenance: Check the sleeve for wear and deformation every 1000 hours. If the outer diameter wear exceeds 0.10 mm or cracks or deformation appear, replace it immediately. Replace it simultaneously with the bearing to avoid poor fit between the old and new parts.