25U21T, Transition Base, Converts T-Frame 213T/215T to U-Frame 254/256, KIT 250U

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25U21T, Transition Base, Converts T-Frame 213T/215T to U-Frame 254/256, KIT 250U. APPLICATIONS: Transition bases compensate for the difference in mounting dimensions and shaft heig ht 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 254U frame motor with a 10 HP NEMA 215T frame motor without modifying the basic installation. Made of the same high-quality materials and construction as the adjustable motor bases above. They are for horizontal mountings, shimming may be needed for direct coupled loads. Thread size listed is for mounting transition base to the “T” frame motor. Dimensions listed are for one piece—two are supplied, one for each side of the motor’s foot. Show more