Even today, there is still a lot of misunderstanding of roller bearings. Preloads are used that are too high and the precision of such bearings is often questioned.Their load bearing capacity is often under-estimated, although almost every car, van and lorry on our roads runs on roller bearings, often with minimal maintenance.
This letter has some useful perspectives on using such bearings, but most usefully, it has four excellent drawings for arrangements using two, three and four sets of roller bearings in precision machine tools, such as lathes. The simple two-bearing mounting will be familiar to owenrs of mini-lathes. the more complex layouts reward a little careful study, especially as to the 'floating' arrangements for dealing with thermal expansion.
Neil
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Hi,
I'm the editor of Model Engineers' Workshop magazine and, for my sins, one of the website admins.
I'm a model engineer, and in the past I have written for ME and MEW, but I won't claim any great stock of expertise, just plenty of enthusiasm. Before becoming editor I used to post on this forum as Stub Mandrel (and may occasionally still do so).
If you would like to find out more about me, my personal website is www.stubmandrel.co.uk/ and I have an author page on Amazon at amazon.co.uk/Neil-M-Wyatt/
Feel free to send me a 'pm' (message member) but these are a bit slow and clumsy, so if you would like to get in touch with me by email use neil.wyatt@mytimemedia.com
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I hope to hear from you soon.
Neil
