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TBWOODS 670.76.4257 HUCO-FLEX M 76 16MM X 1-1/4

$386.50 Each


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Additional Description

Thin pressed steel membranes act as the pivotal members in these couplings. Torque is resolved to simple tensile stresses in opposing segments of the membranes. These couplings have near-infinite life and a dynamically balanced construction which makes them suitable for applications requiring high rotational speed and high-level motion integrity e.g. machine tools, robots, centrifuges, turbines, dynamometers.

Family Name High Performance Couplings
Coupling Type Flex-M
Size 76
Outside Diameter 2.99 (in)
Service Factor Acceleration
Max. Bore 1 1.496 (in)
Max. Bore 2 1.496 (in)
Clearance Bore 1.500 (in)
L Min 2.90 (in)
Shaft Connection Clamp
Screw Size M8
Screw Torque 354.0 (in lb)
Wrench 1 0.24 (in)
Mass 1,772.5 (lb)
Moment of Inertia 69,823
Max. Angular Compensation 1.0
Max. Axial Compensation 0.20
Max. Radial Compensation 0.4
Torsional Flexural Stiffness 31
Angular Flexural Stiffness 134.0
Radial Flexural Stiffness 110.0
Axial Flexural Stiffness 9.0
Peak Torque 885 (in lb)
Max. Speed 5,000.0
Max. Temp 248.0 (°F)
Min. Temp -40.0 (°F)
Insulating FALSE
L1 1.5 (in)


O.D. 2.99 in

Return policy

Disclaimer: The return policy information shown below is merely a copy of the text as stated in TB Wood's Terms and Conditions.


3. Claims for refunds or replacements must be made to the factory. Products may be returned only after written approval and a returned goods authorization number has been received from Customer Service or Application Engineering. Return shipments must be prepaid (Refer to Returned Goods Policy). Final decision about refund or replacement rests solely with TB Wood's Incorporated. 


Disclaimer: The return policy featured below is for distributors only. Also, it is merely a copy of the text from TB Wood's Distributor Policy and Procedures.


Returned Goods
The policy for returning products for defects in workmanship or materials is covered under the “Product Reliability” section.

Distributors and, occasionally, OEMs may want to return products that are overstocked or slow moving. Prior approval and a returned goods authorization number must be obtained from Customer Service or Application Engineering. This number must be referenced on the returned goods shipment. It allows us to identify the contents of the shipment, the Distributor who originated it and the reason for return. Freight must be prepaid. 

Products returned for reasons other than factory authorized stock adjustments must have approval from Customer Service or Application Engineering and a returned goods authorization number. They must be sent by prepaid freight and will be subject to a 15% restocking charge. There will be additional charges as necessary for re-boxing and refurbishing. Returned goods must have been manufactured and/or sold by TB Wood’s Incorporated and must be in salable condition. They will be inspected at the factory and if reconditioning is necessary it will be charged to the Distributor. We reserve the right to reject unsalable products.

No products will be accepted for return or exchange if they are obsolete.


Product's availability

State of California Proposition 65 Product Warning