Shaft bearing

Faults where this part may be needed

• Trips under loadBatch larger than rated, very stiff mix, belts slipping, or gearbox or bearing tight.
• One motor draws much more current than the otherMechanical resistance on that shaft (bearing, gearbox, build-up, sync link) or a supply phase fault.
• Rumbling at one shaft end, hot housingShaft bearing damaged, often after a seal failure.
• Mortar dripping at a shaft endSeal worn out or damaged by back-pressure; grease pressure lost.

Troubleshooting page: Slurry or mortar leaking at a shaft end seal → Open the diagnosis →

Usually replaced together

Always replace the shaft seal kit with the bearing: a new bearing behind a worn seal fails again within months.

Often ordered with

What to send when ordering

• Mixer maker, model and serial number from the nameplate, with a photo of the plate.
• Size: dry filling and compacted output (for example 3000/2000) or the rated m³, and the year.
• Part position: shaft A or B, arm number from the drive end, left, centre or right version.
• Photos of the old part from the front, back and side, with a tape measure in the picture.
• Key dimensions: length, width, thickness, bolt hole diameter, hole spacing, countersunk or not.
• For seals and bearings: shaft diameter at the seal and the number printed on the bearing.