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    The Beam flexible coupling is formed from one piece of aluminum rod. A spiral slot is cut through the length of the aluminum tube forming a “spring” center section referred to as a helical coil or beam. The flexure allowed by the beam portion of the coupling is capable of accommodating angular, parallel and axial misalignment while continuing to convey power between the attached shafts. This results in a single piece, true flexible coupling.

    The Miniature Beam coupling is designed for very light power transmission applications where accurate positioning of shafts is an essential requirement. It also has a very high tolerance to heat, chemicals, and corrosion that would be harmful to conventional elastomeric flexible couplings.

    The Miniature Beam coupling design is very well suited for small shaft applications and the inherent requirements of start/stop/reverse applications where zero backlash and extreme positioning accuracy are important. This coupling operates either clockwise or counter clockwise without sacrificing windup or torque capabilities.
Unit of Measure

Specifications

Description 

EC100-BEAM CP-8MMX8MM

Coupling Size

EC100

Type

Single Beam Coupling

Material

Anodized Aluminum

Style

Clamp Screw

Finish

Anodized Aluminum

Weight

0.08 oz

Weight (Complete Coupling w/ Min. Bores)

1.10 oz30.00 g

Dimensional Data

Bore A

0.315 in8.00 mm

Bore B

0.315 in8.00 mm

Overall Length

1.260 in32.00 mm

Keyway Size

No Keyway

Outside Diameter

0.984 in25.00 mm

Min. Bore (Dimensions ID1/ID2)

0.236 in6 mm

Max. Bore (Dimensions ID1/ID2)

0.394 in10.00 mm

Length thru Bore

0.315 in8.00 mm

Clamp Screw Size

M3

Cubic inches

1.22000 in³

Performance Data

Max. Operating Temperature

200.00 ºF

Max. Speed

10000 rpm

Nominal Torque

11.00 in·lb

Max. Angular Misalignment

5.00 º

Axial Misalignment

± 0.010 in

Parallel Misalignment

0.005 in

Moment of Inertia

86.8000 lb·in²

Torsional Stiffness

286.50 in·lb/rad

Features

Features 

  • All-metal coupling
  • Easy to install – one piece
  • High angular misalignment capability to 5°
  • Anodized aluminum finish
  • Zero backlash design

Notes

Notes 

  • Nominal torque, torsional stiffness, weight and moment of inertia are based on minimum bore size.