Regal Beloit America, Inc.

Marathon Electric Manufacturing Corporation

Jeffrey Patrick Nelessen

John Edward Raczek

Christopher Thomas Ohrmundt

Gerald R Muehlbauer

C Scott Eagleton

Mark Bartz

Scott Wright

Laura Michelle Reamer

Allen Jonathan Barkholz

An electric machine is provided. The electric machine includes a stator and a rotor. The rotor is rotatably secured to the stator. The electric machine further includes a shaft secured to the rotor and a sleeve. The sleeve defines a bore and an outer periphery of the sleeve. The sleeve is slidably secured to the shaft. The electric machine further includes a bearing defining a bore of the bearing. At least a portion of the bore of bearing is fixedly secured to at least a portion of the outer periphery of the sleeve.

Electric machine, assembly and associated method

A bearing assembly for an electric motor is provided that includes a bearing having an inner race and an outer race, and a bearing float sleeve having an outer race engaging member. The outer race engaging member includes an outer surface sized for slip fit engagement with a bearing seat formed in a motor end member such that the bearing float sleeve can be displaced axially in relation to the bearing seat and an inner surface configured for engagement with the bearing outer race such that the bearing outer race is in a fixed rotational position with respect to the bearing float sleeve. The bearing float sleeve includes at least one feature operational to maintain a fixed rotational position of the bearing float sleeve with respect to the motor end member.

Bearing rotational lock

A tachometer is mounted to an end frame of a motor. The end frame includes an end mount plate. An adjusting plate located within the recess and coupled to the mount plate through a plurality of radial coupling units and a plurality of axial spring loaded clamp units. Both coupling units are circumferentially spaced about the mount plate and the adjusting plate. Each radial coupling unit includes radial set screws in threaded openings in the mount plate and engage the periphery of the adjustment plate for radial positioning of the adjustment plate. Each axial coupling unit is a clamp unit located centrally between the radial coupling units, and each includes a clamp screw adapted to pass through a clearance hole in the adjusting plate and threaded into an appropriately threaded opening in the mount plate. A preload Belleville washer is located between the head of the clamp screw and the adjustment plate. Each clamp unit also includes a pair of axial set screws, located one to each side of the clamp screw. In assembly, a suitable indicator is coupled to the motor shaft and the position of the adjustment plate within the mount plate is accurately located in accordance with selected checking of angular positions of the adjusting plate with respect to the shaft axis. A particular sequence of setting the clamp screw units run-out condition is disclosed to establish a final run-out location of the adjusting plate which includes setting the axial positioning set screws and tightening the clamp screw to set the run-out essentially to zero.

Mount apparatus for rotatable apparatus coupled to a rotating drive unit

Growing community of inventors

Merrill, WI, United States of America

Jeffrey Patrick Nelessen