The cast iron-frame U.S. MOTORS 6812 vertically enclosed, fan-cooled motor from Nidec Motor Corporation has a tubeless design that decreases service requirements. This large-frame TEFC is manufactured with a ball-type non-reverse ratchet, which require less service and downtime in critical applications. The all cast iron construction, including the frame and end brackets, reduces construction variations and delivers a reliable motor. Mechanical variability (including reed critical frequency) is also reduced. The one-piece frame ensures easy assembly and a shorter lead time. They are available up to 2,000 hp. 888/637-7333; www.usmotors.com.