FEATURES
• Designed from the ground up using finite element analysis to maximize flex life.
• Easy two piece element installation. No need to move the hubs during replacement.
• One spacer size to handle most different between shaft spacings.
• Light weight element absorbs shock loading
and torsional vibration.
• Same hubs used on both spacer and
standard elements.
• No lubrication.
• Good chemical resistance.
• Stock bore-to-size (BTS), Sure-Grip bushed
(QD) and Taper-Lock® bushed (TL) Hubs.
Dura-Flex Coupling
C. Calculate Design Horsepower or Design Torgue
- If Prime Mover is a 1160, 1750, or 3500 rpm motor.
Design Hp = Prime Mover HP x Service Factor
Go to page F2—3 and reference the corresponding motor rpm column. - If Prime Mover is not one of the three speeds listed above.
Design HP @ 100 rpm = (Primer Mover Hp x Service Factor x 100) / Coupling RPM
Go to page F2—3 and reference HP @ 100 RPM column. - If Using Prime Mover Torque
Design Torque = Prime Mover Torque x Service Factor
Go to page F2—3 and reference Torque column.
D. Select Coupling (DURA-FLEX Couplings are sold by component)
A DURA-FLEX Assembly consists of one element (STD or Spacer) and two hubs (BTS or QD). Optional high speed rings may also
be ordered for spacer elements. Below is an ordering example for Dura-Flex Couplings.
