Abstract: An air pre-cleaner for centrifugally ejecting heavier than air particulates from an air stream for use in an apparatus having an air intake includes an impeller assembly mounted for rotation with a wave washer. A two-part housing including first and second parts that are manually releasably securable together permits removal of housing part for cleaning of the pre-cleaner without the use of tools.

Abstract: A bearing pad for a tilt pad journal bearing assembly includes a pad body having a concave journal surface on one side and a mounting portion on an opposite side adapted to secure the pad to a bearing casing, the journal surface having undercut surfaces extending along opposite marginal edges thereof in a lengthwise dimension of the pad.

Abstract: The apparatus includes a motor with a shaft for rotating a fan. A retaining ring and a thrust washer are located around the shaft on one side of the hub of the fan and a torque washer is located on the outer side of the hub with the end of the shaft extending through a central aperture of the torque washer. The retaining ring supports the thrust washer and the thrust washer engages and supports the hub of the fan. The aperture of the torque washer and the side of the shaft at the end thereof have planar surfaces which engage each other which prevents rotation between the torque washer and the shaft. Bosses are formed on the outer side of the hub which fit into apertures formed through the torque washer outward of the central aperture to transfer torque radially outward to the hub. A screw has a threaded shaft extending through the central aperture of the torque washer and which is screwed into a threaded aperture formed in the end of the motor shaft to tighten the torque washer to the hub.

Abstract: A blower motor mounted in a housing with the use of two end supports which act as shock absorbers and positioning devices. Each end support is formed of relatively soft flexible material and comprises a cup shaped member adapted to be attached to an end of the motor. Extending radially outward from the cup shaped member are a plurality of spaced apart legs adapted to engage the wall of the housing. Each leg comprises two spaced apart leg members which diverge outward from each other and a flexible arcuate bridge portion connecting the outer ends of the leg members for engaging the wall of the housing.