METHOD FOR MAINTENANCE OF UNIVERSAL JOINTS Russian patent published in 2017 - IPC B60S5/00 F16D3/41 F16C11/06 

FIELD: machine engineering.

SUBSTANCE: method for maintenance of cardan joints consists in the fact that at first preliminary marking of universal joint yoke position is carried out, then the universal shaft bearings are dismantled, washed and mounted back. Sequential disassembly of bearings starts with the most accessible of all located in universal shaft by removing the locking ring and creating internal excess pressure of lubricant pumped through a hole to supply the lubricant, leading to the bearing pressing-off, and then it is washed. Sequential reverse bearing installation is performed with an angular displacement of 30° in relation to the original position, compared by the marking of the universal joint yokes with fixation by the locking ring. Maintenance of other bearings is carried out in a similar way after the necessary rotation of the universal shaft to get access to the next bearing.

EFFECT: reduced maintenance burden, improved reparability and durability of universal joints without removal of the universal shaft and disassembly of half couplings of its attachment to the transmission.

1 cl