Attachment by key

Principal

The use of a key makes it possible to make a connection by blocking a rotation. It requires the machining of a groove in the shaft and bore. For manufacturing to be possiible, the groove to be realized in the bore must emerge on both sides.

A parallel key is a rectangular piece of metal, embedded half and half into the shaft and hub. The machining of the groove in the shaft is effected with the aid of a two-bladed cutting tool.
A keyway of this type is excellent for the transmission of high torque levels.

To find out more about the machining dimensions

-> schéma de fixation par clavette

Disk (or half moon) keys are used for the transmission of weaker torques. The machining of the keyway into the shaft is very easily done using a three bladed cutter.

A keyway does not stop axial movement of the system. Therefore it must be combined with another locking system, such as a thread and bolt (circlips).

-> schéma de fixation par clavette demi lune

Back to Ways of fixing toothed wheels

Back to Fixings

Back to the list of technical files

Who are we? - Customer services - International - Terms and conditions - Legal statement - Site map - Contact

Ondrives Ltd - Rino Industries Ltd - Rino Mechanical Components - HPC Ireland

mechanical drives • conveyor parts • power transmission • linear drives
linear motion • rotary motion • gears