# Spindle Maintenance

**URL:** <https://forum.onefinitycnc.com/t/spindle-maintenance/17507>\
**Category:** Spindle/VFD (Aftermarket/Unsupported)\
**Created:** [December 19, 2022, 7:12pm UTC](https://forum.onefinitycnc.com/t/spindle-maintenance/17507 "2022-12-19T19:12:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![PezWoodworks](https://avatars.discourse-cdn.com/v4/letter/p/ea5d25/32.png) [@PezWoodworks](https://forum.onefinitycnc.com/u/PezWoodworks)\
**Post date:** [December 19, 2022, 7:12pm UTC](https://forum.onefinitycnc.com/t/spindle-maintenance/17507/1 "2022-12-19T19:12:16Z")

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Is there a suggested maintenance schedule for spindles, such as cleaning or greasing/oiling the bearings?

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**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [December 19, 2022, 11:44pm UTC](https://forum.onefinitycnc.com/t/spindle-maintenance/17507/2 "2022-12-19T23:44:32Z")

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Hey Pat,

in the manual of my spindle (a 6,000–24,000 rpm 2.2 kW water-cooled spindle), it says:

> ### 11 Maintenance
> 
> Note: The bearings of the motor spindle are greased for life! Relubrication is therefore not necessary and would considerably shorten the service life of the bearings.
> 
> #### 11.1 Maintenance and inspection after initial start-up
> 
> After the initial start-up (this applies both to the new installation and after a modification of the machine), all screw and plug connections of the electrical and mechanical installation as well as of the coolant system must be carefully checked for tightness after the first 5 operating hours and retightened if necessary.
> 
> #### 11.2 Daily maintenance
> 
> Clean the motor spindle and tool cone with a clean cloth. Then grease the tool taper and clamp a tool.
> 
> Never clean with compressed air, as this can cause foreign bodies to enter the interior of the motor spindle.
> 
> Check ventilation slots and heat sinks for dust and dirt deposits, if necessary take constructive measures to prevent dust and dirt from entering.
> 
> #### 11.3 Weekly maintenance
> 
> Check cooling circuit for bubbling, vent if necessary or replace coolant completely. Check for leakage (water-cooled spindles). Check coolant hoses and connections. The hoses must not be kinked, porous or brittle. Replace complete coolant hose if necessary.
> 
> #### 11.4 Monthly maintenance
> 
> Check that there is no dirt or deposits in the coolant. Deposits can clog the cooling channels in the spindle. Therefore, change dirty coolant immediately.
> 
> #### 11.5 Replacement of wear parts
> 
> Modifications, repairs or the replacement of spindle parts may only be carried out by qualified personnel authorized by us. Opening the spindle body and damaging the warranty seal will result in the exclusion of all warranty and liability claims.
> 
> – Source: Mechatron [HFS Series](https://www.spindel-shop.de/en/high-frequency-spindle-standard-series/) Operation Instructions Manual

I don’t know if or how much this applies to your spindle. Perhaps you check your spindle manual.

You may also be interested in:

> [@Spindle Warm Up Program?](https://forum.onefinitycnc.com/t/spindle-warm-up-program/13791/2):
>
> in [my spindle](https://www.mechatron-gmbh.de/fileadmin/user_upload/Datenblatt_HFS-8022-24-ER20.pdf)’s manual (a 6,000–24,000 rpm 2.2 kW water-cooled spindle), it says:
> 
> > #### 10.2 Spindle run-in
> > 
> > A cold spindle must always be run in thoroughly before it is put into operation in order to gently bring the bearings up to operating temperature. The stated run-in times are to be doubled if the spindle has not been used for more than a week, is brand new, or the bearing has been changed.
> > 
> > When running in, the speed should be set to the minimum (6000 rpm) and maintained for at least 1 minute. The speed can then be increased in steps of 6000 rpm and must be maintained for a further minute each time. The speed is gradually increased until the desired operating speed is reached.

Welcome to the forum!

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<div class="post-metadata">

**Author:** ![PezWoodworks](https://avatars.discourse-cdn.com/v4/letter/p/ea5d25/32.png) [@PezWoodworks](https://forum.onefinitycnc.com/u/PezWoodworks)\
**Post date:** [December 20, 2022, 11:51am UTC](https://forum.onefinitycnc.com/t/spindle-maintenance/17507/3 "2022-12-20T11:51:43Z")

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Wow, thanks for the in depth answer, I appreciate it.  
Pat