Retrofitting a 1986 Maho MH400E

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21 Nov 2017 13:45 #102134 by drimaropoylos

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21 Nov 2017 13:51 #102135 by drimaropoylos
The only source i have found for ball bearing grade balls sells 1000 balls minimum, and if the balls are not standard (oversized), then 15000 is the minimum order. Any help appreciated here.

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21 Nov 2017 14:13 #102136 by PCW

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21 Nov 2017 14:18 #102137 by drimaropoylos
Thank you
John

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21 Nov 2017 15:03 #102138 by andypugh

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21 Nov 2017 15:13 #102139 by drimaropoylos
Thank you for that, the size is 3,5 mm. like those
www.amazon.com/Diameter-Chrome-Steel-Bea...mm+Bearing+Balls+G10

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21 Nov 2017 15:17 #102140 by andypugh
For a ballscrew you want to be more accurate than just "3.5"

The vendor in the link I sent does them in .001" increments, but only around a 1/8" nominal size.
www.amazon.com/s/ref=nb_sb_noss?url=sear...+Screw+Balls+100+pcs

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21 Nov 2017 15:52 #102141 by PCW
Replied by PCW on topic Retrofitting a 1986 Maho MH400E
More than that I think its suggested that the balls be in alternate sizes (spacer balls and load bearing balls)

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21 Nov 2017 16:05 #102142 by andypugh
I think that alternating might be done also when fitting oversize balls in order to keep the train length the same.

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21 Nov 2017 16:25 #102144 by drimaropoylos
The micrometer reeds 3,499. The only solution is to send samples to the supplier and he will responsible to proper measure the balls with the his advanced measurement tools, and then send me the proper sized replacements. Or even better solution is to find some company on Europe to send the whole ballscrew, to replace all the balls and seals. The only one that I have found has never answer back.
John

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