Unitary enclosure and cover therefor

Details Unitary enclosure and cover therefor Unitary enclosure and cover therefor

B - Operations, Transporting

61

F

308/16

B61F 15/26 (2006.01) F16C 19/38 (2006.01) F16C 33/72 (2006.01) F16C 33/76 (2006.01)

Patent

CA 2029835

ABSTRACT The interior of an antifriction bearing is isolated with an enclosure having a case which fits into the outer race of the bearing and primary and secondary lips which establish a barrier along a sealing surface that is located beyond the inner race of the bearing. The primary lip, which is presented toward the interior of the bearing, does not actually contact the sealing surface, but does have pumping cavities which direct lubricant, that migrates along the sealing surface, back toward the interior of the bearing. The secondary lip projects away from the primary lip and actually contacts the sealing surface. The case, primary lip and sealing lip are all molded from a common polymer as an integral unit. Where the journal around which the bearing fits ends beyond one end of the bearing, a polymer cover may be snapped over the enclosure at that end of the bearing to provide an extra measure of isolation.

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