ATRA-FLEX T-Flex High Performance Couplings

Featured Product from U.S. Tsubaki Power Transmission, LLC

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ATRA-FLEX T-Flex® high performance couplings are severe duty, higher performance couplings made for the most rigorous applications. T-Flex® absorbs extreme torsional shock and vibration, is suitable for horizontal and vertical use, reversing and start–stop applications and generates less reactionary loads, which significantly increases bearing life. T-Flex® offers a wide application range with sizes available to transmit torque loads from 60 lb-in to over 1,570,000 lb-in with shaft capacities ranging from 0.375 to over 20.00 running from low rpm to over 18,000 rpm.

T-Flex® uniquely combines the stability of a compression type coupling with the safety of a shear coupling. In the event of a lockup, the insert will shear, minimizing the possibility of damaging your rotational equipment. No lubrication or routine maintenance is required. The rugged polyurethane insert is the only spare part and can be replaced in minutes without having to move the equipment or the shaft hubs. Standard inserts have a temperature range from -60° to 250° Fahrenheit with high temperature inserts available up to 350°. The inserts are available in a range of hardness to meet most torsional stiffness and torque requirements, and offers very high resistance to chemicals and weather. T-Flex® couplings are suitable for blind assembly, horizontal or vertical, reversing, and stop/start applications.

T-Flex® close coupled couplings consist of four parts. The Ring Hub, Flex Hub, Insert, and Drive Ring. The Ring Hub and Flex Hub are installed on the shafts with the Drive Ring fitting over the Flex Hub. After coupling alignment, the Insert is placed around the Flex Hub engaging the bottom lobes of the Insert. The Drive Ring is then fitted over the Insert engaging the top lobes of the Insert. The Drive Ring is then fastened to the Ring Hub using high strength alloy steel socket head cap screws with high collar lock washers. The coupling will now transmit torque with silent, smooth reliable, maintenance free operation.

Manufactured in the USA, T-Flex® standard hubs and rings are machined from solid carbon steel rounds and tubing, maintaining tight tolerances which provides excellent coupling balance. Visit to learn more about ATRA-FLEX T-Flex® couplings.