SX2P Spindle Bearings

Has anyone replaced the spindle bearings in an SX2P mill, I was looking at installing angular contact bearings in place of the regular ball bearings.

I think it is only possible on the MT3 spindle machines and not the R8. Have a look here on ARC's site and also follow th elink on how to replace them

I did look at those and noticed this in the replacement guide:

These are only suitable if you have an MT3 spindle. At the time of writing, ARC were working on a solution for the R8 spindle, which has a different size bearing at the bottom of the spindle.

I was wondering if it was due to difficulty sourcing the bearings or the cost.

Difficulty in sourcing one of the Angular Contact bearing sizes in 2RS (2 rubber seals)form needed for the R8 Spindle.

If you are prepared to experiment on the R8 spindle, you could leave the top bearing on the R8 spindle to be 6206-ZZ or 6206-2RS, or change it to 7206B-2RS (currently out of stock - expected back in, in about a week), and find someone to supply you 7007B for the bottom bearing, noting that it will be open - as not 2RS. Then, incorporate a seal into part 102 Oil Cover (see Exploded Diagram & Parts List) link on this page. I have a spare seal. If you want to try it, call and speak with our Ian and he will send it to you.

Ketan at ARC.

Edited By Ketan Swali on 05/12/2022 15:21:10

Thanks Ketan, and Ian for the advice / offer.

I'm currently planning which improvements I want to make to the mill to get the most out of it.

I did find a sealed 7007B on SimplyBearings, it's not the cheapest at £60 before VAT but it is a good brand, RS seems to be selling the same form £171 bizarrely.

**LINK**

FAG 7007B -2RS is a great brand, but expensive. I would suggest that any benefits it has for the price will be lost on an SX2P. Usually such an offering is designed for use with spindles/or applications which run at much higher speed than the SX2P. However, did a quick search for the usual budget brands open variety and they aren’t too much cheaper.

It will be a while until we are able to make an offering - at a more reasonable price. So I guess at present the Simply Bearings FAG sealed version is likely to be the solution if you want a sealed bearing.

Ketan at ARC

Ordered the bottom bearing from here, was the cheapest I was able to find searching around.

I'll keep an eye out for the top bearing coming back in a stock and give it a go.

Great

Ketan at ARC