311 ltlutilit y supply c om RIGGING TRUSTED SINCE 1958 L e wis Manufac turing S ealed T h rust Ball B earing S wiv el T hese dir ec tional boring swiv els pr ev ent equipment s r otational t o r que fr om int e r f ering with the pr oduc t being pulled I n a t ypical boring application the swiv el is attached behind the r eamer head and t o the pipe or cable being pulled thr ough the bor e P e rmanently sealed t o keep c o ntaminants out they nev er r equir e lubrication LK J1 Knuck le Join t1 P r o vides a wa y t o adapt a pulling swiv el or an y other devic e t o the popular Duck bill st yle dir ec tional bits P r ev ents pr ematur e w ear and t ear on both the swiv el and bit T he k nuck le joint allo w s the swiv el t o be pulled back in a straight line Quick ly attaches and detaches with one Allen head bolt Hea v y Duty Ball B earing S wiv els Specif cally desig ned f or t ension string ing manufac tur ed fr om high g r ade pr e str essed st eel S wiv els assur e that the c onduc t or will r emain in the neutral position during string ing of transmission and distribution lines T win rac e ball bearing swiv els pins ar e r emo vable with a scr ew driv er P r oper plac ement of thrust and radial bearing allo w thrust and shock loads t o be absorbed without af ec ting r otation of swiv el P a r t O v erall Length Pin D iamet er Ja w O pening O v erall D iamet er W orking Load Appro x Breaking S t rength HD 00 4 18 516 38 78 1500 lb 4500 lb HD 0 5 14 716 12 1 18 5400 lb 16200 lb HD 1 6 12 58 1 716 9000 lb 27000 lb HD 2 7 18 58 58 1 58 12000 lb 36000 lb HD 3 8 58 34 34 2 21000 lb 63000 lb HD 4 10 78 78 2 38 30000 lb 90000 lb Knuckle Joint Knuckle Joint installed on a swiv el and D uckbill direc tional boring bit P a r t W ork Load 401003 1500 lb 401001 5400 lb 401005 9000 lb 401007 12000 lb