Automotive compressor having a simple waterproof structure for a bearing supporting a pulley

摘要

In an automotive compressor, a pulley (6) is rotatably supported on a compressor housing (1) through a bearing (5) to have an axial gap (10) left between the compressor housing and the pulley. A waterproof cover (13) covers the axial gap and serves to suppress water from the outside from reaching the bearing. The waterproof cover is fixed to the compressor housing by a ring-shaped fastener (14). Instead of use of the waterproof cover, the axial gap may be controlled in size thereof.