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I disassembled this spindle (HSD ES919) in order to replace the bearing ,the original bearing were :
2x VEX 30/NS SQCE1 (hybrid bearing ,abec 7)
2x VEX 40/NS SQCE1 (hybrid bearing ,abec 7)
I am...

I couldn't find it online

it's weird that it uses compress air as cooling ,that means the air has to be discharged ,thus flowing out and losing compressor power just to cool it.

hey, I bought this spindle from a friend. i got hooked up with an inverter ,but I can't find a manual for it , I want to know how is cooled, can use someone's experience with spindles.
It was on...

I have recently bought Biesse Rover 22 for education use in my university. while moving the machine from Canada to my country the whole computer and screen were damaged and lost .
how can I know if...