Instructions for Collet Maintenance

Collet Maintenance

It is vital to carry out regular collet maintenance. We suggest collet maintenance is performed for Westwind air bearing spindles every 100 operating hours for removable collets, and every 24 hours for bonded collets. However, the actual frequency of collet maintenance can be dependent on application, usage and environment. To check the health of your collet, first measure the torque as described in the ‘Collet Torque Test Procedure’ Technical Paper.

Refer to the ‘Collet Torque Test Procedure‘ Technical Paper for further details.

Torque test kits are available containing full equipment and instructions for checking collet torque – an indication of collet performance. Collet torque (gripping strength) tends to reduce as the collet is used, due to dust and debris generated during normal use. To preserve the collet torque and dynamic runout within specification, and maintain optimum spindle performance, good maintenance is essential, together with the use of correct materials (grease, solvent, etc.).  

Collet Samples

If the collet torque is below the minimum prescribed level, as defined in the test procedure, then use ‘Westwind Air Bearing Spindles Spare Collets Guide’ Technical Paper.

Refer to the ‘Westwind Spare Collet Guide‘ Technical Paper for further details.

Collet Maintenance Sample

Refer to these additional Technical Papers for further details:

Refer to the ‘Bonded Collet Spindle Maintenance‘ Technical Paper for further details.

Refer to the ‘Dead Stop Collet Maintenance Instructions‘ Technical Paper for further details.

Refer to the ‘Positive Lock Collet Maintenance Instructions‘ Technical Paper for further details.

Collet Maintenance Equipment

Collet maintenance kits are available to buy for all main collet types. These include lubricant and a collet locking tool, specifically designed to enable the collet to be set correctly.

Collet Torque Test Kit

Fig 1 – Collet torque test kit.

Collet Maintenance Test Kit

Fig 2– Collet maintenance kit.