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Thread: Bridgeport spindle regrind
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1st Oct 2016, 12:49 AM #1Most Valued Member
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Bridgeport spindle regrind
My bridgeport has started making a slight noise and it prompted me to do some investigation. Turns out the spindle has about 0.0023 of runout, which isnt great, the spindle bearing preload collar was also wound right down. So im thinking i either need to grind down the bearing spacer to get back some preload or get new bearings.
If i get new bearings i assume im going to need to get the spindle r8 taper reground in the new bearings. Is anyone on the forum equipped to do this? The only place i know of th HM precision grinding but i dont think i have the kind of money to stretch to that. Any advice appreciated. Ralph
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1st Oct 2016, 09:54 PM #2Most Valued Member
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1st Oct 2016, 10:59 PM #3Diamond Member
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Unless the taper is damaged you wont need to get it reground when you fit new spindle bearings.
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2nd Oct 2016, 09:05 AM #4Most Valued Member
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Thanks for the replies, i guess ive just looked at a few too many "argh spondle runout is 0.010 on my bridgeport" threads on PM.
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