Tightly controlled face to bore perpendicularity is maintained (TIR of This one-piece international series shaft collar has a 1.0000" bore, 45mm OD, and 15mm width.
.0000", OD 45mm, Anodized Aluminum Ruland clamp style shaft collars do not mar the shaft, are infinitely adjustable, and have superior holding power when compared to set screw collars. They are supplied with a metric screw allowing users to have an inch bore collar that can be installed with metric tools.