The full letter with text and images is here.
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
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
If you want to send me a friend request, don't! Nothing personal – but I refuse all requests so I don't have to choose which ones to accept and which to reject.
I'm always glad to hear your views on the magazine, and particularly keen to encourage new contributors to 'have a go', so let me know if you have any ideas for articles.
I hope to hear from you soon.
Neil
