A morse taper is a form of a shallow taper which is self-locking in nature and is thus used to interlock two components having complementary tapers. Once the male taper is pushed into the female cone the wedging action of the angle and the frictional forces hold the two pieces together. Many engineering tools including drill sleeves, extension sockets, arbors and revolving centres utilize the concept of morse tapers to mount them on machine spindles, tailstocks or other components.
Extension sleeves are used to mount tapered shank components onto smaller or larger tapered machine spindles. The sleeves are also used to increase the reach of the tool. The sleeve consists of a male taper and a female taper both precision ground to ensure a close fit and a firm clamp. The male taper is clamped into the spindle's female taper whereas the female taper of the sleeve envelopes around the component's tapered shank.
The extension sleeves are provided with a slot on their bodies and a tang on the ends of their male taper. In order to detach the components:
|C.No||External Morse Taper||Internal Morse Taper||action|
Conforming to IS:9097-1979 Akros Drill chuck arbors are precision ground to ensure close fit and a firm clamp.
Mount smaller tapered shanks to larger tapered spindles. Conforming to IS:6702 Akros A-Grade sleeves are ground internally & externally to ensure a close fit and a firm clamp.