Lip seal wear sleeve

摘要

A crankshaft (18) for use in a compressor that incorporates a lip seal (38) includes a first material forming the crankshaft, an area on the crankshaft (18) that engages the lip seal (38), and protection for the crankshaft (18) from wear due to frictional contact with the lip seal (38). The protection includes a secondary material added to the crankshaft (18) causing a hardened surface of the crankshaft (18) at the area. The protection is preferably in the form of a wear sleeve (48) on the crankshaft (18). The wear sleeve (48) is formed from a second material which wears less than the first material while in contact with the lip seal (38) and the wear sleeve (48) is formed separate from the crankshaft (18) and removable for replacement. <IMAGE>