Electric Motor Thrust Bearing

Precision lock nuts.

Electric motor thrust bearing.

Motor encoder units. Needle roller thrust bearings. Tapered roller thrust bearings. One of these on each end of a motor shaft will resolve all of the radial and axial forces presented by an electric motor.

Rolling element bearings in electric motors support and locate the rotor maintain a small and consistent air gap between the rotor and stator and transfer loads from the shaft to the motor frame. A thrust bearing is either integrated with a specific main bearing assembly or independent of the main. Spherical roller thrust bearings. The washers slide against flat shaft faces to keep the shaft from moving back and forth sideways.

Sensor bearing units. Crankshaft thrust bearings provide a fore aft gap control for axial movement or endplay of the crankshaft. 68 f 20 c thus a bearing temperature of 158 f 70 c measured on the bearing stationary outer ring or housing washer. Bearing related failures account for 51 of all electric motor failures the more you know about the types of electric motor bearings their failure modes and how to maintain them the better prepared you will be to enact measures to help extend the life of your motor bearings.

Types of electric motor bearings. Another variation on the standard thrust washer is to use several in series whenever the vmax or maximum velocity in rpm exceeds the normal specification for a sliding not rolling bearing such as a single thrust washer. The force and direction upward downward or balanced of the applied axial load dictate the type and number of thrust bearings needed to obtain optimum performance and. Lock nuts requiring a keyway.

Lock nuts with integral locking. The thrust bearing is usually at the top of the motor and may consist of one or more angular contact bearings a spherical roller bearing or a hydrodynamic plate bearing. A constant radial load being 5 of the basic static load rating co. Sliding thrust bearings such as oilite washers are used in some electric devices.

The bearings should enable high and low speed oper ations min i mize friction and save power. The bearings should be able to operate at low and high speeds whilst minimizing frictional loses. Open bearings with normal clearance. These thrust bearings are located at a specific main bearing location generally at the center main or rear main depending on engine design.

Electric motor bearings the purpose of a bearing in an electric motor is to support and locate the rotor to keep the air gap small and consistent and transfer the loads from the shaft to the motor.