Posted by Steve@Advance on July 30, 2014 at 11:31:46 from (107.203.134.67):
In Reply to: Lock Washers????? posted by Jiles on July 30, 2014 at 08:35:48:
If all surfaces of the items being fastened are machined, then no lock washer will be needed. The bolt stretch will be sufficient to maintain torque. Hardened flat washers are helpful to keep the bolt head from digging in, damaging the surface and giving false torque readings.
But, typically most surfaces are not machined. They are a hot or cold rolled surface, or a cast surface. Holes are often punched instead of drilled, or the hole was drilled and not debured or chamfered. All these conditions cause the surfaces to "work" or move slightly when a load is applied. When this happens the surfaces grind together slightly and through the process of "finding the path of least resistance" will seat closer together, causing the initial bolt torque to be relaxed. A lock washer will do 2 things, take up the slack and prevent the bolt from backing off.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Harvestin Corn in Southern Wisconsin: The Early Years - by Pat Browning. In this area of Wisconsin, most crops are raised to support livestock production or dairy herds in various forms. Corn products were harvested for grain, and for ensilage (we always just called it 'silage'). Silo Filling Time On dairy farms back in the 30's and into the first half of the 40's, making of corn silage was done with horses pulling a corn binder producing tied bundles of fresh, sweet-smelling corn plants, nice green leaves with ear; the
... [Read Article]
Latest Ad:
For sale Farmall super A tractor is complete and has just been setting for awhile,it was running when pulled out of the barn,shouldn’t take to much to get it going asking 1100.00
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
