LEESON Electric Corporation  

AC Motors Adjustable Motor and Transition Bases

 
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Specifications: Adjustable Motor Bases
These Heavy-duty gauge steel mounting bases simplify the installation of motors and make the tensioning, maintenance and replacement of belts a simple efficient task. Fabricated from sheet or steel plate, then primed and finished in a gray rust and corrosion resistant oven-baked finish. Gussets and reinforcing channels on larger units and continuous seam welding on all units give these bases strength and durability for a long life. Motor mounting bolts are included.
 
Specifications: Transition Bases
Transition bases compensate for the difference in mounting dimensions and shaft height of a rigid base NEMA T Frame to the next higher NEMA U Frame. This makes it possible, for example, to replace a 10 HP NEMA 254 U Frame motor with a 10 HP NEMA 215T Frame motor without modifying the basic installation. They are designed for horizontal mounting shimming may be needed for direct-coupled loads.
 
Available Ratings: Adjustable Motor Bases
NEMA Frame Size
48
56
143/145T
182/184T
213/215T
254/256T
284/286T
324/326T
364/365T
404/405T
444/445T
447/449T
 
Available Ratings: Transition Bases
NEMA Frame Size
143/145T
182/184T
213/215T
254/256T
284/286T
324/326T
364/365T
404/405
 
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AC Motors Adjustable Motor and Transition Bases