Gearwheel pump or motor driving wheel bearing bushes - is fixed in bearing bodies, whilst driven bushes roll under load to give clearance

摘要

A gearwheel or motor has bearing bodies inside its housing, in the bores of which bearing bushes are located. These receive the shafts of gearwheels in external engagement with each other. The bearing bushes (28, 31) of the driving wheel (35) are firmly fixed in the bearing bodies (15, 17), whilst those (20, 22) for the driven wheel (26) are located with copious radial clearance in non-round holes (18, 19), being able to roll in a track in their holes, forming such an angle with the wheel centres that when the bearing bushes (20, 22) are placed in equal weight condition on the track, a force is so exerted on the driven wheel (26) that it interdigitates with the other wheel in a clearance-free manner.