Hi,
Just as an addition to a recent side issue regarding bearings.
As a machinist, a few years back (quite a few years back!) I attended an information meeting regarding bearings.
It was put on by a bearing manufacturer, I can't remember which one, but I assume that they know best, that is, the information given was accurate.
The speaker said that bearings should always be stored on their sides. This was referring to simple ball and roller races, not thrust bearings.
The reason given was that there is something called 'Brinelling' , where any vibrations in the storage facility will cause there to be small indentations in the races where the balls are in contact. By storing on the side, these indents are not a factor once the bearing is in use in the machinery.
He also mentioned that this will occur on installed bearings if the machinery is not used.
The time frames for this to occur were quite short as far as I can remember, but this was relative to a location where there were vibrations in the building due to an adjacent rock crushing plant.
I can remember asking about storing in, say, an office, and was told that it would still occur, and storage should be flat, with the bearing on its side, not like a book on a shelf.
There might be some significance for us, especially where a prop is aligned in the same place behind the keel when stationary.
Also, for better info, not just the ravings of an old man like me, try Googling or Binging 'Brinelling', and 'Brinell Test'. John
-- http://www.fastmail.fm - Email service worth paying for. Try it for free
__._,_.___
| Reply via web post | Reply to sender | Reply to group | Start a New Topic | Messages in this topic (1) |
.
__,_._,___
No comments:
Post a Comment