An improved shaft sealing assembly (18) for use with an elongated, axially rotatable shaft (14) typically forming a part of a blender (10) or similar device is provided, which permits rapid, easy seal repair without the need for complete breakdown of the blender (10). The assembly (18) includes a tubular sleeve adapted to be disposed about the shaft (14) at the region of a shaft/blender wall interface, with an annular sealing body (42) disposed about the sleeve (40) in a sealing position and supporting a seal (66) which engages the sleeve (40) at a first sealing location (66a) thereon. A lock device (48) operably to maintain the sealing body (42) in its sealing position is provided, and the sleeve (40) is selectively movable relative to shaft (14) and sealing body (42) so as to change the sealing location from the first location (66a) to a second, different sealing location (66b). The sleeve 40 can also be easily replaced if desired.