Our Blog - See Examples of Spindles We've Repaired

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Welcome to our blog. Here, you'll find examples of spindles we've repaired in the past. We explain what was wrong, have images, videos and more. If you're looking for more specific brand information, or can't find a brand click here, or try the "brands" link above.

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  • Ingersol T1500 Spindle Rebuild

    Ingersol T1500

    Ingersol T1500 Spindle Repair

    This spindle, from the automotive industry, came to us from a long time customer of ours through integrated supply. The 50 taper was worn and the gearbox was leaking oil into the front bearings causing them to fail. Our evaluation found the graphite seal between the transmission and the main spindle was damaged. We had to custom make a replacement seal as the OEM does not stock the replacement part nor could they obtain one.

    This spindle was ground on one of our Kellenburger grinders and all the replacement parts were manufactured in our specialized machining department. The spindle was assembled in our clean room and test run. The test stand for this spindle was specially made by Northland Tool. It is complete with vacuum system, oil pump and a specialized drive system. This allows us to duplicate the machines support systems letting us run the spindle as close to “real life” as possible. It has taken over 30 years for Northland Tool to  acquire the knowledge and equipment to complete these types of repairs. Use caution when choosing your spindle repair company as many will portray they are equipped when in fact they are not.



    Agathon
    Agathon

    Agathon

    2000 rpm
    Grease Lubricated
    This spindle is shown on one of our test stands undergoing our initial vibration analysis tests. We rebuilt both the drive motor and the spindle and we will final test them as an assembly. This makes sure the assembly will perform to our high standards when it is installed into the machine.


    GTI HNA75
    GTI HNA75

    GTI HNA75

    Gamfior ID grinding spindle
    This is a 75,000 rpm ID grinding spindle manufactured by Gamfior and relabled by GTI Spindle. Our incomming evaluation showed bearing wear and an oversized pilot. We ground plate ground the pilot and assembled the spindle in our clean room. It was then test run at 75,000 rpm and it passed our final QC requirements.


    Okuma MC 5
    Okuma MC 5

    Okuma MC 5

    This spindle had coolant contamination to the front bearings that washed the grease lubrication from the raceways.  We reviewed the machining process with our customer and working together we determined the best plan of action to increase their spindle life.


    Weldon 800
    Weldon 800

    Weldon 800

    Not the most glamorous spindle we do but we save our customers money and machine downtime by repairing them. Another example of ask us we probably can help.


    Tree VMC
    Tree VMC

    Tree VMC

    8,000 RPM
    40 Taper
    The spindle taper was rough and only had 35% contact. The bearings had past their usable lifespan.
    We kiss ground the taper on our Kellenburger, replaced the bearings, rebuilt the spindle, test ran and balanced. We were able to obtain 90% taper contact and less than 1 micron run out.


    Gilman Spindle Repair

    Gilman Spindle Repair

    Gilman Spindle Repair

    5000 rpm

    Contamination entered the front bearings compromising the grease lubrication

    We manufactured a new front nut in our in house machining dept. improving the contamination prevention properties of the spindle.