Flux brace trailer1/14/2024 ![]() Normally, you’d just purchase a 1″ keyed hub and weld it onto the 11″ sprocket however my used sprocket already featured a 3/4″ hub. Each tire was then slipped onto the 1″ main keyed shaft along with an 11″ drive sprocket (the sprocket was a type “50×54″ meaning 54 teeth, a #50 standard chain (5/8″), and a hub required). To begin, only one tire is to be locked onto the shaft as a drive tire however the option exists to insert a keyway into the second tire for dual-wheel drive if required. The original cart tires were free-wheeling onto the shafts so weldable hubs, of the same type used to make the sprockets and with 1″ keyed holes in the centres, were welded onto the tire rims one on each side and with the keys aligned so a single piece of keyway could be used to lock both hubs onto the shaft. Two 16×6.50-8 2pr turf tires were welded onto hubs with keyways. The main shaft was then assembled for a “test fit” before proceeding to complete the welding of the ball mount on top, this consists of a 29″ long piece of 1″ keyed shaft material. Note also that side arms are cut 1/2″ longer than required to allow for material to weld onto. “CL” is the center line for the main shaft. ![]() All parts are fabricated from 2″ OD square steel tubing. Layout of the main frame and ball support of the dolly with dimensions. The basic design of this unit has the tires mounted far enough apart to allow the electric tongue jack to operate freely – many designs examined featured a support across the front prohibiting use of the trailer’s own jack. The sides of the unit are 31″ in length and two cross-members 25″ in length are welded across these, 6.5″ apart, making a 29″ wide unit. The main frame of the dolly is constructed of 2″ square steel tubing. The gear reducer is also seen here placed temporarily onto the aluminum mount. ![]() The main frame of the dolly with the main shaft installed for a test fitting. ![]()
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