Question:
what is the torque specification for a 1 7/8inch x 3/4inch and 1 7/8inch x 1inch ball? Guddentyte? Spot-torque? Six foot pipe on a four foot Stilson? Numbers please, I cant find any associated with any of the 1 7/8inch balls. Also please be clear about units, I need to know if its lb/ft, nt/cm or slug/cubit... remember the Mars orbiter?
asked by: Donald T
Expert Reply:
The correct torque value for the nut on a 1-7/8 inch hitch ball depends on the diameter of the shank. Draw-Tite, who makes # 19256 and # 19260 lists the following torque specs:
"During hitch ball installation, torque all 3/4" shank diameter balls to 160 ft. lbs, 1" shank diameter balls to 250 ft. lbs., and 1-1/4" shank diameter balls to 450 ft. lbs."
1-7/8" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Chrome - 2,000 lbs
1-7/8" Hitch Ball - 3/4" Diameter x 1-9/16" Long Shank - Chrome - 2,000 lbs