Special Features:

No.4-40 unc-2b mounting holes are aligned in the shoulder face 89.0 degrees min -91 degrees max apart 0.160 in.Min-0.200 in.Max deep on a 0.462 in.Min -0.478 in.Max dia; shoulder face and back and hub end are chamfered at 0.010 in.Min -0.050 in.Max44 degrees min-46 degrees max; shaft access is chamfered at 0.000 in.-0.040in.Max 44 deg.Min -46 degrees max both ends; hub is offset from center against shoulder by 0.013 in.Min, 0.017 degrees max to form an eccentric; securing hole qty: 1; o/a length: 1.117 in.Min, 1.133 in.Max; securing hole size: 4-40 unc-2b

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.