F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
277/39
F16J 15/32 (2006.01) F16C 33/76 (2006.01) B21B 31/07 (2006.01)
Patent
CA 1181107
ABSTRACT OF THE DISCLOSURE A novel sealing mechanism for a bearing mechanism is provided herein. A pair of oil seals are installed within an outer cylindrical housing and elastically encircle a rotatable or reciprocable shaft extending concentrically through the housing. Each oil seal is made of rubber or synthetic resin and has a prop ring made of steel wire exten- ding underground through a radially outer portion of the oil seal. The prop ring is partly cut out and thus provides a radially outwardly directed elasticity for close adhesion to the inner surface of the housing. The radially outer portion of the oil seal extends in a radially inward direction to form an oil sealing lip and a dust sealing lip, with a narrow dog-legged portion at an intermediate portion of the oil seal which per- mits the oil seal to be flexible in a radial direction. An additional seal having substantially similar elements and structure may be installed as a dust seal. This structure provides an easily installable and remov- able oil seal which substantially prevents leakage of lubricating oil from the bearings and which also substantially prevents the entry of harmful materials into the bearings.
413801
Annaka Masao
Kitawaki Michio
Borden Ladner Gervais Llp
Mutsubishi Rubber Co. Ltd.
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