Showing posts with label babbitt bearings. Show all posts
Showing posts with label babbitt bearings. Show all posts

Friday, May 4, 2018

How Babbit Works

To compliment the previous article on Babbit bearings, here is a more technical explanation of how a babbit bearing works and the specifications of the metal itself. This article came from the  http://vintagemachinery.org site. You will have to visit if you like pictures of old iron, huge manufacturers index and publication uploads.

Click and then click again for best view. 



Here is an interesting little article from Popular Science May 2004, on operating a small carbon arc furnace for melting small amounts of high temp. metals.


In the second last paragraph the writer states the minimill industrial melter draws 100 megawatts. Many years ago I worked at a small co-gen plant supplying power to the grid and low press steam to a Domtar dimension lumber mill. The co-gen was rated 7.5 megawatts ( it only ever ran flat out when I was operating, the ego kicking in, lol). Those 7.5 megawatts were enough to power a small town of 1500 people, all the services, and the Domtar saw mill and drying kilns. So how much can 100 megawatts power, a small city of 30 or 40 thousand, or 1 mini industrial carbon arc mill, wow.


Friday, April 20, 2018

Babbitt Bearings

Occasionally there are still machines around that run on babbitt bearings. The classic old stuff  often ends up in the scrap yards because the babbitt bearings are done and people don't know how, or want to take a chance, at refurbishing them. 35 years ago I was one of the "don't know how" when a classic old 36" band saw became available, pulled out of a farmers barn in rural Thunder Bay. It needed paint and new babbitt bearings, I let it go. That sure would look nice now in my shop, with a pinstripe paint job and new bearings. If I had read a few articles like the following article on refurbishing babbitt bearings, thats probably where it would be.

The article was published in the Oct. 1995 American Woodworker magazine. Babbitt metal sources may still be available.