PM940 Spindle

[9t8z28]

Well I'm a bit disappointed. Was hoping for a full spindle but only got then inner spindle. Looks as if they pulled apart a spindle to provide as it appears to have had bearings on the journals. Spindle other than the BT30 portion is similar to the current PM940 R8.

Very interesting. So it appears as though the OD and length of the steps of the BT30 spindle are the same diameter as the R8 ?

 

[fritts]

Yes, will need to disassemble the R8 shaft to know for sure.

 

[fritts]

 

[9t8z28]

What are you going to do for a drawbar? It appears as though the german machine uses some type of drawbar.

 

[fritts]

I'll have to make one that can use a petal for the BT30 pull studs. Plan on making it pneumatic release.

 

[9t8z28]

I'll have to make one that can use a petal for the BT30 pull studs. Plan on making it pneumatic release.

For $280 for a BT30 spindle, I just might have to jump on that but since my machine wont be CNC'd, I'd prefer to go with a threaded drawbar instead of using pneumatics. Can this be done or has anyone accomplished this? Sorry to be somewhat off topic. Thanks for finding this spindle!

 

[9t8z28]

I guess I would need the BT30 pedal and then a drawbar and that should be it, right?

 

[fritts]

If you are not using the pull studs you should just use a threaded drawbar. My guess is those can be ordered as well.

 

[9t8z28]

If you are not using the pull studs you should just use a threaded drawbar. My guess is those can be ordered as well.

That would make sense since the holder is threaded. Thanks. Subscribed to see if the 2 spindles are interchangeable.

 

[fritts]

Didn't go through all the dimensions but its the same setup except the lower cover will have to be bored out to fit the new spindle. Oh and a pic of the belt drive and plate.