Power transmission device with torque-resistant seal

摘要

A power transfer unit that includes a structure, a tube and a seal. The structure defines a boss that projects along an axis. The boss has a first portion, which defines a gripping surface, and a second portion that defines a sealing surface. The tube has an end that is disposed concentrically about at least a portion of the boss. The seal is received between and sealingly engaged against the structure and the tube. The seal includes a seal body with a seal member and a coupling portion. The seal member sealingly engages the sealing surface and the coupling portion frictionally engages the gripping surface.