| 主权项 |
1. A hub clamp assembly comprising:
a hub, the hub comprising
a flange portion, andan annular sleeve portion, the flange portion and annular sleeve portion together defining a common passageway through the hub, the sleeve portion having a plurality of substantially longitudinal slits therein extending from a distal end toward the flange portion to form a plurality of sleeve segments, the sleeve portion further having an outer surface comprising concentric, unthreaded grooves; and an annular collar, the annular collar comprising
a plurality of sleeve engagement pieces together substantially surrounding the sleeve portion, each sleeve engagement piece having a first surface and an opposing second surface, the first surface containing concentric, unthreaded grooves slidably engaged with the concentric, unthreaded grooves of the outer surface of the sleeve portion, anda support ring surrounding the sleeve portion of the hub and overlying the second surfaces of the sleeve engagement pieces; wherein the hub and annular collar are configured to cooperatively clamp a shaft within the common passageway through the hub, wherein the hub is provided with a plurality of threaded members in the flange portion such that the threaded members are actuable to urge the collar axially toward the flange portion to an operative position along the length of the sleeve portion such that the grooves of the sleeve engagement pieces slide against the grooves of the sleeve portion, thereby forcing the sleeve engagement pieces radially inward to exert a clamping force. |
