What should be paid attention to when the pulley catches oil
When using the oil injection method, the disassembly of medium and large bearings will be pulley safer and simpler. This method injects hydraulic oil between two conical mating surfaces through oil holes and oil grooves under high pressure. The friction between the two surfaces is greatly reduced and produces an axial force that separates the bearing from the shaft diameter.
Remove the bearing from the locking sleeve
For the small bearing installed on the straight shaft of the tightening sleeve, a hammer can be pulley used to knock the small steel block evenly acting on the end face of the bearing inner ring to remove it (Fig. 7). Before that, loosen the set lock nut for several turns.
