EK1
Elastomer Coupling with keyway connection

1,950 - 25,000 Nm

EK1 ELASTOMER COUPLING WITH KEYWAY CONNECTION

Specifications EK1

EK1 series 2500 4500 9500
Type (Elastomer insert)
ABC
ABC
ABC
Rated torque (Nm)TKN
19502450
50006200
1000012500
Max. torque (Nm)TKmax
39004900
1000012400
2000025000
Overall length (mm)A213 272 341
Outside diameter (mm)B/B1160/154 225/190 290/240
Mounting length (mm)C88 113 142
Inside diameter (pilot bored) (mm)DV30 40 50
Inside diameter range H7 (mm)D1/230-95 40-130 50-170
Inside diameter range H7 (inch)D1/279 113 145
Inside diameter of elastomer (mm)DEsiehe Tabelle (abhängig vom Bohrungsdurchmesser)** siehe Tabelle (abhängig vom Bohrungsdurchmesser)** siehe Tabelle (abhängig vom Bohrungsdurchmesser)**
Set screws (DIN 916)E25
Distance (mm)G69 89 110
Possible shortening length (mm)H40 147 480
Moment of inertia per Hub
(10-3 kgm2)
J1/J2
12.5 25 53
Approx. weight (kg)  3,500 3,000 2,000
Speed standard (min-1) 10 8 6.5
 
CAD Portal 2500 4500 9500
2D/3D Data 

Properties

  • Design:
    • two coupling hubs are concentrically machined with curved jaws.

    • bore tolerance H7 + keyway + set screw per DIN 916 or optional pilot bore (DV).
  • Temperature range: The temperature range depends on the Elastomer insert.
  • Tolerance: Overall clearance between shaft and hub 0.01 to 0.05 mm.
  • Material:
    • coupling hub: up to series 450 high strength aluminium, series 800 and up steel

    • elastomer insert: precision molded, wear resistant, and thermally stable polymer
  • Speeds: See table below *Please contact R+W
                  ISO 2.5 balance grade available
  • Properties of Elastomer Coupling model EK1:
    • economical design
    • concentrically machined
    • vibration damping
    • electrically isolating
    • press fit design
    • low backlash, due to keyway connection

Overview