| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive and compact conveyor bearing for actualizing lower torque while securing dust-proof and water-proof property. SOLUTION: The conveyor bearing comprises an inner ring 1 externally fitted and fixed to a shaft, an outer ring 2 arranged rotatably relative thereto via balls 3, and a seal member for sealing grease between the outer ring 2 and the inner ring 1. The seal member consists of two L-shaped annular members 4, 5 having L-shaped radial cross sections and fixed to the axial ends of the inner ring 1 and the outer ring 2, respectively, at a space d to oppose each other in the axial direction. To the L-shaped annular member 4 on the side of the outer ring 2, a seal lip 7 is fitted which has lip portions 7a, 7b contacting the L-shaped annular member 5 on the side of the inner ring 1 arranged outside in the axial direction, and a protruded portion 7c (or 7d) not contacting it. COPYRIGHT: (C)2009,JPO&INPIT
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