I break the main spindle bearing on a hass sl30 lathe, haas want to sell me the hole unit in stead of just 2 bearing, did someone know the bearig model ?
I'm shure that this is a standard bearing...
Thanks

This may or may not be the case - bearing replacement MAY requre special procdures and/or there may be special tolerances and/or bearing fits involved - as in regrind spindle assembly or ID AFTER reassembly. Some spindles are done this way at build and you can NOT simply 'replace bearings'.

THis is why an in-field replacement of "only the bearing" may not be viable. In some cases, it may be cheaper to pay more to have a Haas serviced unit than to experiment with learning how to "repair spindles" on your own machine.

Pay the bill - all in all, it will probably cost you less to do it this way than to do it yourself.