- Joined
- Sep 14, 2014
- Messages
- 436
On another board I posted a link to AST Bearings and what I thought was an interesting description of "pre-load". Never dreamed I'd open a huge can of worms with the result being Scott Logan weighing in on the infamous bearings question.
IMHO, yes opinion take it for what you think it's worth, there is and always will be a difference in terms between the vernacular and what you will find in industry/profession accepted descriptions. Both are the result of people trying to communicate. The AST site is a clear example as they use the vernacular term "pre-load." The last thing I want to do is set off a huge debate over terminology. Please consider this a mixture of vernacular and professional engineering terms and information.
Engineers will tell us that there are no such thing as a "pre-loaded" bearing regardless of what Logan states in the 10" manuals. There are "standard clearance, tight clearance, and negative clearance bearing. Also there is no such thing as a "sealed" bearing, only shielded on one or both sides.
OK, got it. Obviously there is vernacular in the Logan documents regarding "pre-load" vs. tight clearance and "sealed" vs. shielded.
Now that there is some background.
Unless a moderator posts that pasting in the text is acceptable, the complete posting by Scott Logan is here.
Ron
IMHO, yes opinion take it for what you think it's worth, there is and always will be a difference in terms between the vernacular and what you will find in industry/profession accepted descriptions. Both are the result of people trying to communicate. The AST site is a clear example as they use the vernacular term "pre-load." The last thing I want to do is set off a huge debate over terminology. Please consider this a mixture of vernacular and professional engineering terms and information.
Engineers will tell us that there are no such thing as a "pre-loaded" bearing regardless of what Logan states in the 10" manuals. There are "standard clearance, tight clearance, and negative clearance bearing. Also there is no such thing as a "sealed" bearing, only shielded on one or both sides.
OK, got it. Obviously there is vernacular in the Logan documents regarding "pre-load" vs. tight clearance and "sealed" vs. shielded.
Now that there is some background.
Unless a moderator posts that pasting in the text is acceptable, the complete posting by Scott Logan is here.
Ron