Gallery, Projects and General > How do I??

lathe headstock bearing fit

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lordedmond:
 Dave
I am reluctant to say pre load as it could imply excessive pressure

I may have misled by end float I mean remove all end float so that they are not to tight . in this case too tight is bad to loos not so you can increase the tension if required.

but get em tight and the damage may be done


I have just done my lathe AC bearings £ 280 each pair and my mill £ 120 for the Taper roller

Stuart  sorry for the misunderstanding

John Rudd:

--- Quote from: JonIndigoman on March 25, 2014, 06:30:52 AM ---Thanks all for the replies.

John

I have read how you did your minilathe bearings and have a question.

How did you ensure even removal of material all over the seating area and prevent the shaft going out of line axially i.e. moving the center line to one side?

--- End quote ---
Hmm.not sure what you mean here.....
Could you rephrase?

Jonfb64:
John,

what i meant was how did you make sure the shaft did not end up oval, although I realize this would only be a micron or two. My concern is that it may push the center line of the spindle out. Am i just nit picking?

John Rudd:
Ahhh...I see..
Ermmmm .   Mounted the spindle between centres  on my big lathe and just polished the journals sufficient to make the bearing race a tight push fit....  :dremel:

Jonfb64:
Just spent 3 hours in the workshop polishing the journal and have achieved what I think is the correct tight press fit. The bearing moved nicely along the shaft when the locking nut was tightened. :D

thanks all for the help :mmr:

special thanks to John :clap:

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