This support roller with nylon roller will help support the gate in the open position.
CG-35G
6-3/8″ Wide Support Roller
Steel guide track for side mounted guide rollers. Typically used for gates that have an arched or decorative gate top, protruding pickets, barbed wire, or other top obstructions.
The tension bar acts as a turnbuckle and builds in gate adjustability to moderate long term sag and post movement problems. Fits into 50mm square tubing and can be adapted to use in Imperial tubing sizes.
Heavy duty top guide assembly with 4 covered 1-1/2" diameter guide rollers, to guide the gate through the opening. Complies with ASTM F2200 and UL325 safety standards. Minimal forces act on the top guide, except for high wind variability. Two top guides are recommended in high wind conditions, privacy panel styles, and very heavy gates.