divot61

hello guys, im just a mechanic at a golf course and haveing problems with some axles on some small greens mower trailers, the axles are 3/4" maybe 7/8" round stock, they are bending because of the weight of the mowers bounceing on the cart paths. the mowers are about 212#'s just wondering if i can heat up the part of the axle thats bending and dipping it in oil. would that help or am i just trying to push a lenth of chain up hill? any and all suggestions or advice would be outstanding thanks