|Feather Key Joints - Course: Techniques of Fitting and Assembling Component Parts to Produce Simple Units. Trainees' Handbook of Lessons|
Feather key joints are distinguished by the function of the feather key within the joint.
Fitting key joints
They serve for fixing a machine part on a shaft, if the respective part need not be moved on the shaft. The keys are placed into accurately fitting shaft keyways and only transmit the rotary power between shaft and hub.
1 fitting key, 2 shaft, 3 hub, 4 keyway of the fitting key in the shaft
Sliding key joints
They serve for fastening machine on parts on a shaft allowing the parts to slide on the shaft in an axial direction, e.g. transmissions. The keys are fixed by countersunk fillister-head screws, so that a displacement of the key in the keyway is prevented.
1 sliding key, 2 shaft, 3 hub, 4 keyway of the sliding key in the shaft
Profile shaft joints
- When connecting hubs with circular arc profile shafts or spline shafts the principles of feather key or sliding key joints apply.
- When connecting hubs with serrated shafts, the principle of fitting key joints applies.