Baldor Electric Motors is no longer manufacturing this motor, possible replacement is the following Baldor Electric Motors part#
EM3706
*** This motor has been replaced by Model # EM3706 ***
(M3307) 5 Hp, 230/460 Vac, 3 Phase Input, 213 Frame, Open Drip Proof, 3600 Rpm, Foot Mounted, General Purpose Motor