Hoover Innovation Thrust Wa...
$6.99
Product details
A thrust washer takes the axial load on a motor shaft, keeping the rotating assembly from bearing directly against the stationary parts around it. Part 21328033 is the replacement washer for the Hoover Innovation series, and it also fits the Oreck PT357.
These are consumable parts. The washer wears thin, end float opens up, and the shaft starts moving along its axis instead of simply turning - which you hear as a rising whine or a rhythmic knock, and feel as heat coming off the motor housing. Left alone, the wear transfers from the washer to the parts it was there to protect.
It costs almost nothing, so the sensible time to fit a new one is whenever the motor is open for other work rather than as a repair in its own right.


