R8 spindle removal on X2 type mill (with speed readout)

This topic has 2 replies, 2 voices, and was last updated 16 March 2026 at 09:40 by fingerscrossed.

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15 March 2026 at 19:59 #841228
fingerscrossed
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@fingerscrossed
Has anyone replaced the bearings on this type of mill that has a speed readout?

It looks as though the spindle will knock out downwards (the only way it could go!) but I am slightly concerned by the knobbly lumps on the side of the spindle.

It would be great if anyone has experience they could share. Thanks!
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15 March 2026 at 20:09 #841240
JasonB
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@jasonb
The lump is just a key that should pull out of the keyway slot in the spindle. Loosen the grub screws in the collar below.
16 March 2026 at 09:40 #841274
fingerscrossed
Participant
@fingerscrossed
Thanks Jason. I thought that the key might have been spot-welded in (you can almost see the blobs at the top of the key), it could have been a bit of solder? Anyway, with a little persuasion it came out.

The lumps I was referring to were the items on the collar – they seem to be small magnets (that have attracted swarf!) rather than grub screws, for the speed detection presumably. The collar then slides off, not particularly easily but nothing is very precision on this machine!

Thanks very much for your help. I hope this helps others in the future faced with a similar disassembly.
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R8 spindle removal on X2 type mill (with speed readout)

R8 spindle removal on X2 type mill (with speed readout)

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