For info:
40,000# max. capacity per arm 61" arm length Channeled for C-hook use 90" radius of unit to end of arms We are selling the top only(sketch available) Top has been redrilled to fit bearing listed below 38.4 Pitch daim. 2.5 diametral pitch 20 degree pressure angle 96 teeth 44.66" bolt circle lower 40.94" bolt circle upper 5/8-11 bolt holes 3.54 height 47" diameter base frame diameter 1" ball diameter 42.81 bearing pitch diameter 119 aprox. # of balls 60 degree contact angle 0.0000 bearing IDC Static Capacity: Axial(lbs) Moment(ft.lbs) Radial(lbs) frequent static loading 362,709 258,793 83,764 intermittent heavy duty 544,046 388,177 125,642 theoretical stress limit 725,375 517,555 167,518 ABMA 1990 1,107,939 790,514 255,867