The collars come in one and two-piece clampstyle designs with bore sizes from 1/ 8 to 6 in. in the inch series and 3 to 80 mm in the metric series. To ensure perpendicularity and proper alignment, the collars are singlepoint faced. Unlike traditional setscrew types, clamp-style shaft collars do not mar the shaft. The collars wrap around the shaft when tightened thus applying nearly uniform compressive stress on the circumference of the shaft.
Ruland Manufacturing Co. Inc., 6 Hayes Memorial Dr., Marlborough, MA 01752, (508) 485-1000, ruland.com