1) Lower release torques can be achieved.
Consult Bibby Transmissions.

2) Dimensions G mm. and axial movement
on overload also apply to Types AR, AF,
AS and AP.
3) Tolerance on spigot diameter B is f7 to
BS 4500:1969.

4) Standard tolerances on keyways is Js9
and on bores H8 to BS 4500:1969.

5) Applicable to all variants except AP Type.