CAT 160-6306 Tilt Brace Bearing Cap

CAT 160-6306 is a Caterpillar tilt bracket bearing cap, compatible with the tilt brackets of Cat 140K/160K graders and the working devices of 307/308 excavators. Its core function is to secure and position the bearing, preventing dust and moisture intrusion, while also providing axial positioning and support. The following is precise technical and application information.

Core Parameters (Precise Version)

Project Details
Basic Attributes
Model 160-6306, Inclined Bracket Bearing Cap, Single Bolt Fixing, with Sealing Groove and Locating Pin Hole, Compatible with 293-1986 and other tapered roller bearings, used in the hinge of working device, inclined bracket bearing seat, single unit usage 2-4 pieces
Compatible Models
CAT 140K, 160K, 140H graders, 307/308 series excavators, compatible with inclined bracket models 160-6307, 160-6308, bearing seat models 160-6305, 160-6309
Material and Process
Carbon steel (AISI 1045), tempered hardness HB 220-260, surface galvanized passivation for corrosion protection, sealing groove precision IT12, locating pin hole tolerance H7, bolt hole tolerance H8
Key Dimensions
Inner diameter 80mm, outer diameter 105mm, thickness 18mm diameter, sealing groove diameter 90mm, locating pin hole diameter 12mm, bolt hole diameter 16mm, weight approximately 0.8kg. Core Functions and Application Scenarios:

Bearing Positioning: Fixes the outer ring of the bearing, restricts axial movement, ensures the coaxiality of the bearing and shaft system, suitable for frequent oscillation conditions of the working device, and can withstand axial positioning force ≤15kN.

Sealing Protection: Installs O-rings or skeleton oil seals through the sealing groove to prevent dust, moisture, and sand from entering the bearing, protects grease from leakage, and is suitable for harsh outdoor working conditions.

Typical Locations: Grader tilt bracket hinge bearing housing, excavator boom and stick hinge bearing end cap, forming a sealed cavity with the bearing housing to provide a stable working environment for the bearing.

Installation and Maintenance Points:

Before Installation: Clean the sealing surfaces of the bearing housing and bearing cover, check for deformation, cracks, or corrosion; install the O-ring (material NBR, hardness 70 Shore A), and apply grease (NLGI 2). During installation: Align the locating pin holes and tighten the bolts evenly (torque 25-30 N·m). Check that the runout of the bearing cover end face is ≤0.1 mm to ensure there is no leakage at the sealing surface.

Maintenance and replacement: Check the wear of the seals and the tightness of the bolts every 2000 hours. Replace immediately if oil leakage, aging of the seals, or deformation of the bearing cover is found. Do not use sealant to replace the seals.