Importance

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Abstract

A speed reducer includes a carrier defining a housing space and a seal member for sealing the housing space. The carrier has a recess formed in its end surface. The seal member includes a seal base portion and a fixing member. The seal base portion contacts the end surface of the carrier for sealing the housing space. The fixing member is adapted for fixing the retaining portion of the seal member to the carrier in the recess. The fixing member is elastically deformable in a radial direction of the recess such that the fixing member presses the retaining portion against the side wall of the recess. The seal base portion of the seal member contacts the end surface of the carrier with the fixing member pressing the retaining portion of the seal member against the recess in the carrier so as to suppress displacement of the seal member.

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First Claim