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IndustryArena Forum > MetalWorking Machines > Benchtop Machines > Quick question on CNC conversion ball screw maintenance , PM25 arizonacnckits
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  1. #1

    Quick question on CNC conversion ball screw maintenance , PM25 arizonacnckits

    Hi -

    Looking for some quick feedback / info on how often its needed to lube a ball screw given the use conditions below:

    - Purchase the kit https://www.arizonacnckits.com/pm-25-cnc-kit.html and install
    - Use the mill about 2h per week on average.
    - Nothing crazy, Alum and plastic. Low to med loads.

    How often would I need to oil (grease ?) the ball screw nut via the port/fitting?

    I did a search, but some threads are over a yr old.
    https://www.cnczone.com/forums/taig-...0-cnc-cad.html

    thanks in advance.

    AG
    (PS if there are any other maintenance tips on the ball screw, feel free to share a link)

  2. #2
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    Re: Quick question on CNC conversion ball screw maintenance , PM25 arizonacnckits

    ...yes Mobil Vactra #2 is about the most common waylube oil used. But, maybe grease is a better option with some conditions.
    https://www.thomsonlinear.com/downlo...ation_tauk.pdf

  3. #3

    Re: Quick question on CNC conversion ball screw maintenance , PM25 arizonacnckits

    Well thankyou for the PDF. Based on that particular brand, they recommended:

    "As a rule of thumb, replenish grease at least every 600-800 hours"

    So with my Mill / usage and the low hours of only 2-3 per week... it suggests I could lube every 1-2 yrs or even more. (But prob best to go longer as it could dry out)

    AG

  4. #4

    Re: Quick question on CNC conversion ball screw maintenance , PM25 arizonacnckits

    I run way oil but never added it to my ball screws. I don't grease them very often. Maybe annually. The Z screw stays pretty clean. As does X. The Y-Axis screw is probably the one that needs the most maintenance.

    I'd think some nice way covers would make a big difference.

  5. #5

    Re: Quick question on CNC conversion ball screw maintenance , PM25 arizonacnckits

    Thanks CL_MotoTech, that's what I'm thinking too, annually.

    Good tip on the way covers. Have them now, will make sure they do the job.

    AG

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