- Joined
- Nov 14, 2014
- Messages
- 851
Well, I think I know the answer already, but looking for the voice of experience on this one.
Iam trying to reattach a 1" x 1" x 2" cast iron foot to the body of an old, very large electric motor body casting off my Van Norman 12 horizontal mill. This little piece holds one of four 3/8" motor mounting bolts, that secure the motor to the top of the machine. Alas, This little foot broke off the base of the motor body when the mill tipped over during a move.
I have drilled and tapped two holes to bolt the piece back onto the body. Using 1/4x 20 bolts, the piece seems to attach strong and stable. Yet, I would like to have a permanent bond along the fracture for added strength. (The motor mounting bolts apply shearing force to the bolted together part when then are torqued down.)
I don't want to braze this part back onto the casting as I don't want to risk damaging or melting the copper wiring and old insulation affixed inside the motor. So thinking about using JB weld to glue the edges together, and then hold with the two set screws into the holes I made.
Wondering if using JB weld is a wasted effort? (It only has 1000# shear strength)
Anybody have a similar experience?
Thanks
Glenn B.
Iam trying to reattach a 1" x 1" x 2" cast iron foot to the body of an old, very large electric motor body casting off my Van Norman 12 horizontal mill. This little piece holds one of four 3/8" motor mounting bolts, that secure the motor to the top of the machine. Alas, This little foot broke off the base of the motor body when the mill tipped over during a move.
I have drilled and tapped two holes to bolt the piece back onto the body. Using 1/4x 20 bolts, the piece seems to attach strong and stable. Yet, I would like to have a permanent bond along the fracture for added strength. (The motor mounting bolts apply shearing force to the bolted together part when then are torqued down.)
I don't want to braze this part back onto the casting as I don't want to risk damaging or melting the copper wiring and old insulation affixed inside the motor. So thinking about using JB weld to glue the edges together, and then hold with the two set screws into the holes I made.
Wondering if using JB weld is a wasted effort? (It only has 1000# shear strength)
Anybody have a similar experience?
Thanks
Glenn B.