ranchak
Cast Iron
- Joined
- Dec 4, 2007
- Location
- Southern California
I need to replace the thrust bearing in my Mighty Viper VMC-950, they are in a triplex set arrangement, angular contact bearings. The bearing manufacturer states that the preload is 4500 N, the starting torque is .33 N-m. 4500N is 1011.64 lbs. There are no spacers between the bearings and there appears to be a only a washer for the nut to run down against. So how do I apply 1011.64 lbs of preload?
I did find this thread:
http://www.practicalmachinist.com/vb/general/calculating-bearing-preload-163624/index2.html
Where in post #22 Rich explains what I think I should be doing.
It's funny I asked the bearing manufacturer how to set the preload and their engineer said that I should apply 1011.64lbs of torque to the nut. I think someone applied to much torque to his nuts and he either can't think straight or he isn't much of an engineer.
I did find this thread:
http://www.practicalmachinist.com/vb/general/calculating-bearing-preload-163624/index2.html
Where in post #22 Rich explains what I think I should be doing.
It's funny I asked the bearing manufacturer how to set the preload and their engineer said that I should apply 1011.64lbs of torque to the nut. I think someone applied to much torque to his nuts and he either can't think straight or he isn't much of an engineer.