Electric Motor Thrust Bearing

Sliding thrust bearings such as oilite washers are used in some electric devices.

Electric motor thrust bearing. Spherical roller thrust bearings. 68 f 20 c thus a bearing temperature of 158 f 70 c measured on the bearing stationary outer ring or housing washer. A thrust bearing is either integrated with a specific main bearing assembly or independent of the main. In automotive main bearings they are implemented as a two sided shell between crankshaft throws as the middle bearing journal.

Lock nuts requiring a keyway. Needle roller thrust bearings. 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. 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. These thrust bearings are located at a specific main bearing location generally at the center main or rear main depending on engine design. Motor encoder units. 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.

Lock nuts with integral locking. 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. A constant axial load being 2 of the basic static load rating co. Tapered roller thrust bearings.

A constant radial load being 5 of the basic static load rating co. 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. Open bearings with normal clearance. 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.

Crankshaft thrust bearings provide a fore aft gap control for axial movement or endplay of the crankshaft. The bearings should enable high and low speed oper ations min i mize friction and save power. One of these on each end of a motor shaft will resolve all of the radial and axial forces presented by an electric motor. Precision lock nuts.

Sensor bearing units.