RA - Hollow Shaft with Shrink Disc
(#RA)

RB - Hollow Shaft with Spline
(#RB)

Hollow Shaft Key Type(RC Type - Bevel Gearbox)
(#RC)

Single Shaft(RM Type - Bevel Gearbox)
(#RM)

Double Shaft(RS Type - Bevel Gearbox)
(#RS)

Inforced Double Hub Single Shaft(RP Type - Bevel Gearbox)
(#RP)