AA keyless locking bushes

AA keyless locking bushes connect the shaft to the hub by friction alone. After tightening, the bush simultaneously expands in the hub bore and grips the shaft, transmitting torque without a key and without play. The AA type covers a wide range of diameters - from small shafts to large drives.

AA keyless locking bushes - a solid wall for medium and large pulleys

The solid wall supports the hub well, which is why the AA type performs well in medium and large pulleys, sprockets and gears, in couplings and conveyor drums. You can position the pulley precisely before clamping, and remove it during servicing without a puller and without damaging the shaft.

AA type locking bushes in a range of d/D dimensions

AA bushes designated by the d/D dimensions: the first number is the shaft diameter, the second - the hub bore diameter. The AB, DA and DB types have the same dimension range, but differ in design. Exact dimensions are given on the product page.

Can an AB type replace an AA bush - questions and answers

Can an AA bush be replaced with an AB bush of the same dimensions?

The d/D dimensions may be the same, but the design is different. When replacing a bush in an existing machine, choose the same type that was fitted.