Tightly controlled face to bore perpendicularity is maintained (TIR of
Ruland clamp style shaft collars do not mar the shaft, are infinitely adjustable, and have superior holding power when compared to set screw collars..Balanced Collar, 1pc Clamp, Balanced, Bore 14mm, Steel This two-piece shaft collar has a 14mm bore, 30mm OD, and 11mm width. It has a balanced design for better performance in high RPM applications.