WORLD FOR CIVIL

BEARING OF MILLED SURFACES

In building construction, allowable bearing stress for milled surfaces, including bearing stiffeners, and pins in reamed, drilled, or bored holes, is F _p = 0.90F _y , where F _y is the yield strength of the steel, ksi (MPa)
For expansion rollers and rockers, the allowable bearing stress, kip/linear in (kN/mm), is
F _p = ( ( F _y – 13 ) / 20 ) 0.66d
where d is the diameter, in (mm), of the roller or rocker. When parts in contact have different yield strengths, F _y is the smaller value.