Determine bolt size , do not use 1/2-13UNC (unless your design determines this size). Use 12 bolts and SAE Grade 8 mater
Posted: Sat May 21, 2022 1:17 am
Determine bolt size , do not use 1/2-13UNC (unless your design determines this size). Use 12 bolts and SAE Grade 8 material
Do not use preload requirements, use these:
Determine Preload max based on a maximum total bolt stress of 0.8 of bolt yeild strength
Determine Preload min based on a 1.3 margin x service load
There should be a ratio of at least 25% from mean preload to Preload min and mean preload to Preload max
Parts (a) and (b) are not required. Your preload calculations have addressed those requirements
Do not use preload requirements, use these:
Determine Preload max based on a maximum total bolt stress of 0.8 of bolt yeild strength
Determine Preload min based on a 1.3 margin x service load
There should be a ratio of at least 25% from mean preload to Preload min and mean preload to Preload max
Parts (a) and (b) are not required. Your preload calculations have addressed those requirements