Invention Grant
US09546745B2 Bi-directional roller assembly 有权
双向辊组装

Bi-directional roller assembly
Abstract:
A roller assembly comprises a base; a pedestal movably positioned on the base; and a roller fixably positioned relative to the pedestal and movable axially relative to the base. A method of assembling a roller assembly comprises mounting a pedestal on a base of the roller assembly such that the pedestal is movable relative to the base; and fixably positioning a roller relative to the pedestal such that the roller is movable axially relative to the base.
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