This one-piece shaft collar has a 22mm bore, 42mm OD, and 15mm width.
.Shaft Collar, 1pc Clamp, Bore 22mm, OD 42mm, Anodized Aluminum 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.