Motor Bearing Model List

A bearing used in an electric motor is a part that supports the shaft, which guides the rotation of the shaft, or a component that can withstand the empty rotation of the shaft, and the concept of a bearing is very broad. There are four types of bearings commonly used in electric motors, namely, rolling bearings, plain bearings, spherical bearings, and oiled bearings. The most common motor bearings are rolling bearings, i.e. bearings with rolling elements.

Most small and medium-sized motors use rolling bearings. Large and medium size motors also use rolling bearings. Small motors use ball bearings (deep groove ball bearings) for both ends of the bearing. Medium-sized motors use roller bearings at the load end (generally used for high load conditions) and ball bearings at the non-load end (but the opposite is also true, e.g. for 1050kW motors). Rolling bearings are lubricated with grease, but there are also those lubricated with oil.

Take Y2 series motors as an example:

Shaft extension end: 6201-2E-C3, 6202-2E-C3, 6204-2E-C3, 6205-2E-C3, 6206-2E-C3, 6308-2E-C3, 6311-C3, 6312-C3, 6313-C3, 6314-C3, 6317-C3, 6319-C3, NU319, NU322

Fan end: 6201-2E-C3, 6202-2E-C3, 6204-2E-C3, 6205-2E-C3, 6206-2E-C3, 6308-2E-C3, 6309-2E-C3, 6311-C3, 6312-C3, 6313-C3, 6314-C3, 6317-C3, 6319-C3, 6322-C3

Take YSJ series compressor motor as an example

Shaft extension end: 6204-2E-C3, 6205-2E-C3, 6206-2E-C3, 6308-2E-C3, 6309-2E-C3, 6311-C3, 6312-C3, 6313-C3, 6314-C3, 6317-C3, 6319, 6319-C3, 6322

Fan end: 6204-2E-C3, 6205-2E-C3, 6206-2E-C3, 6308-2E-C3, 6309-2E-C3, 6311-C3, 6312-C3, 6313-C3, 6314-C3, 6317-C3, 6319-C3, 6322-C3

Bearing is one of the key components of the motor, in the small and medium-sized motor on the most widely used bearings are deep groove ball bearings, cylindrical roller bearings and angular contact ball bearings, according to the corresponding motor load characteristics, as well as the motor mounting method, bearing selection and use and there are specific supporting relationship.

The more common motor bearings are deep groove ball bearings starting with 6, angular contact ball bearings starting with 7, and cylindrical roller bearings starting with N, NU. The load type of the bearing. Such as 0 series, 2 series and 3 series, is the relatively common bearing series code of motor products, different series of bearings, load capacity has a difference, 3 series bearings relative to the 0 series and 2 series bearings load capacity to be strong, the bearing ring width is relatively large, the ball diameter is also relatively large.