551987 Bearing Housing - Heavy-Duty Cast Steel Bearing Base Suitable for Claas Combine Harvester

551987 Bearing housing is robust cast steel bearing housing designed for CLAAS combine harvester straw chopper assemblies.

**Material features**: Made of high-strength cast steel with precision machining on mounting surface and bearing bore. It features excellent structural rigidity and impact resistance, coping with heavy cyclic loads, crop debris and continuous vibration under harsh field harvesting environments.

**Product characteristics**: This bearing housing is the fixed mounting base for bearings of straw chopper rotor. It holds bearings in place, supports the rotating chopper roller and absorbs shock loads generated during straw cutting. Cracked housing, deformed bore or worn mounting surface will cause rotor eccentricity, excessive vibration and premature bearing damage, leading to straw chopper failure and harvest downtime.

**Compatibility**: Direct aftermarket replacement matching OEM 551987, fully compatible with CLAAS Lexion Combine, CLAAS Tucano Combine, CLAAS Jaguar Forage Harvester, CLAAS Conspeed Corn Header. Inspect bearings and oil seals, calibrate rotor coaxiality after installation. Install 551987 bearing housing to restore reliable straw chopping performance for your Claas harvester.

Weight, W kg 2.4
Inner diameter, d mm 100
Ouside diameter, D mm 130
Number of mounting holes, N 3+2
Diameter of mounting holes, Dm mm 13
Length, L mm 143
Thread, M M10
Distance between mounting holes, b mm 113
Inner diameter, d1 mm 52
Width, B mm 143