Sticks
Well-Known Member
I'm building a "grinder in the box" and have been very pleased with the kit. But now I need to buy a motor. The kit requires a 56C frame motor. I want variable speed and likely will buy the KBAC 27D VFD (mostly because that's what my friend has on his KMG and VFD's confuse the heck out of me.)
So back to the motor. I want 2hp and will have 220v 60 hz single phase current.
This will be a direct drive grinder and I've read postings that I should use a motor that runs at 3450 rpm or so. The grinders I've seen pictured use a TEFC housing. There is a big price difference between TEFC and TENV housing, the latter being much less expensive. What are your thoughts on using the TENV housing? I understand that the TENV (having no fan) will run hotter, but would grinding for 30 mins. or so cause it to overheat?
So back to the motor. I want 2hp and will have 220v 60 hz single phase current.
This will be a direct drive grinder and I've read postings that I should use a motor that runs at 3450 rpm or so. The grinders I've seen pictured use a TEFC housing. There is a big price difference between TEFC and TENV housing, the latter being much less expensive. What are your thoughts on using the TENV housing? I understand that the TENV (having no fan) will run hotter, but would grinding for 30 mins. or so cause it to overheat?