Special Features:

Attachment method: machine screw; securing hole qty: 2; angle between centerlines of securing holes in deg: 90.0 degs; o/a length: 8.000 in.Nom; securing hole size: 0.250-20 in.Unc; face of major circumference serrated to grip disc

Properties:

A cylindrical shoulder type item designed to be mounted and secured directly on a shaft or axle to position and retain on its body a gear(s), wheel(s), or the like. Items must have a method of securing directly to the shaft; however, a pilot hole drilled in or through the wall of the shoulder may be considered a method of securing; or by compressing the slotted hub end on the shaft by a hub clamp, which may or may not be included. Excludes bearing, sleeve; bushing, sleeve; and collar, shaft.