Ac traction motor with drive end bearing assembly for...

Details Ac traction motor with drive end bearing assembly for... Ac traction motor with drive end bearing assembly for...

H - Electricity

02

K

H02K 7/08 (2006.01) B61C 9/48 (2006.01) F16C 33/80 (2006.01) F16J 15/447 (2006.01)

Patent

CA 2135546

A pinion end bearing assembly for supporting and sealing about a shaft which extends through the frame of a traction motor, such as an AC traction motor. The assembly having a rearward end plate assembly attached to the frame, a housing attached to the frame, the shaft extending through the housing and a rotatable element attached to and circumscribing the shaft between the housing and shaft. The rotatable element and the housing adapted to form a series of three labyrinth seals to restrain the flow of air from within the motor to a bearing chamber with the seals being separated by venting chambers to vent to a low pressure reservoir any air which may flow through the labyrinth seals.

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