11-07-2003, 06:02 PM
I have been in the process of building a round bale unroller for 1200 lb bales. It's used in conjunction with a skid steer and you can spear the bale with the spike then rotate it up and set the whole apparatis on the ground then peel the hay off. We have 1 1/2" cold rolled bale spike that is necked down to 1" for the bearings in the hub we're using. On the trial run the spear bent right where it necks down to the bearing size of 1". So we are going to a larger hub to add volume in that area but my question is should we also be using a stronger steel than cold rolled, and what steel would that be??? We want something to hold up to the task while soft without the need for heat treating. Thank you to any one who can help.