I have started thinking more seriously about the ball screw retrofit on my mill. One of the things I will need is bearing blocks, so I am looking at sourcing some bearings. I have looked through the usual internet suspects, and they either have bearings intended for individual use (not ground for duplex mounting), or they have ABEC7 matches super-bearing sets that are a bit rich for my taste. Anybody know of a good bearing place that's not gonna demand a kidney?
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Suggestions for a bearing supplier?
- Thread starter DMS
- Start date
7204 40degree contact angle, ground for either universal mount, or back to back mount with light or medium preload. The ABEC 7 versions are between $200 and $500 per pair from what I have found, I was hoping to find something in ABEC 3 or 5 that was a bit more reasonable.
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Bill Gruby
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I have a few here in the shop that are ABEC 5 dual ground, but I am not sure I have that size (7204). I will check later this evening. How many do you require?
"Billy G"
"Billy G"
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4GSR
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Here's a eBay listing for $50 ea.
http://www.ebay.com/itm/NIB-TORRING...357?pt=LH_DefaultDomain_0&hash=item416a6565e5
Still pricey in my book but affordable over paying $450 set.
Oops, here's another a little cheaper.
http://www.ebay.com/itm/FAFNIR-2MM2...276?pt=LH_DefaultDomain_0&hash=item4abce13b3c
http://www.ebay.com/itm/NIB-TORRING...357?pt=LH_DefaultDomain_0&hash=item416a6565e5
Still pricey in my book but affordable over paying $450 set.
Oops, here's another a little cheaper.
http://www.ebay.com/itm/FAFNIR-2MM2...276?pt=LH_DefaultDomain_0&hash=item4abce13b3c
I ended up ordering some from Callahan Bearing. They were not the cheapest I could find, but at least they could give me the full part number so I knew what I was getting. They are ground flush, but I don't think there is any pre-load built in; I may have to shim them. They were ABEC3 equivalent
I needed 4, 2 for each block. They go back to back and support the thrust on the drive screw. In any case, Callahan was pretty helpful, so thumbs up to them.
I needed 4, 2 for each block. They go back to back and support the thrust on the drive screw. In any case, Callahan was pretty helpful, so thumbs up to them.