TPI 18" FLOOR FAN This totally enclosed motor is single phase, 115V sleeve bearing, permanently lubricated, PSC type motor with pull chain switch. With three speeds the 18" blade produces 5, 750 at high 4, 700 at medium and3, 200 at low. The chrome plated double locking steel guards protect the steel hub and spider with aluminum paddles. Meets federal OSHA requirements. U.L. listed.