EK7

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Two coupling hubs are concentrically machined with curved jaws.
One side with clamping hub and screw per ISO 4762.
One side with expanding shaft and internally tapered
clamping element.

Overall clearance between shaft and hub 0.01 to 0.05 mm.
Suggested bore tolerance for expanding shaft ISO H7.
Manufacturer: R+W
Description

Two coupling hubs are concentrically machined with curved jaws.
One side with clamping hub and screw per ISO 4762.
One side with expanding shaft and internally tapered
clamping element.

 

Overall clearance between shaft and hub 0.01 to 0.05 mm. 
Suggested bore tolerance for expanding shaft ISO H7.

 

Clamping hub: up to series 450 high strength aluminum, 
from series 800 and up steel
Expanding shaft & cone: steel
Elastomer insert: precision molded, wear resistant, 
and thermally stable polymer

 

See table below 
*Please contact R+W 
ISO 2.5 balance grade available

 

  • short compact design
  • easy mounting
  • concentrically machined hubs
  • axial installation with expanding shaft
  • backlash free

electrically isolating

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