influence of heat on spindle bearing of a milling machine

[der Zerspaner 2006]

Hello everybody,

I am currently constructing the bearing for a drive spindle of a vertical milling machine.
However I only want to use this machine for dry processing and as there will be relatively high temperatures I need to consider this fact in the construction.
Can anybody help me: how do I take the thermal expansion into consideration or rather how high does it need to be??

Thanks a lot in advance

[edm-dsc]

Hello,
The thermal expansion is relative and it complies with the measurements, the storage and the outside conditions.
Just to be simple I guess you are going to use a motor spindle. There you can only optimize the cooling system.
Give us a bit more information then we can help you better.

Greetings

[der Zerspaner 2006]

Hello,
The thermal expansion is relative and it complies with the measurements, the storage and the outside conditions.
Just to be simple I guess you are going to use a motor spindle. There you can only optimize the cooling system.
Give us a bit more information then we can help you better.
Greetings

Hello,
Yes indeed, we will use a motor spindle.
Given conditions:
Engine speed max 12000 , driving power 4 KW, arbor diameter of the spindle 50mm, the transmission to the spindle should be done over a pulley( that’s also not up to date that method, isn’t it?).
The bearing spacing is 200mm.

I am thinking about an lubricate the bearing with oil, in order to keep temperature low.


Greetings