EK6
Elastomer Coupling with conical clamping ring

4 - 25,000 Nm

EK6 ELASTOMER COUPLING WITH CONICAL CLAMPING RING

Specifications EK6

EK6 series 10 20 60 150 300 450 800 2500 4500 9500
Type (Elastomer insert)
ABC
ABC
ABC
ABC
ABC
ABC
ABC
AB
AB
AB
Rated torque (Nm)TKN
12.616 4 
17216
607520
16020042
32540584
53066095
9501100240
19502450
50006200
1000012500
Max. torque (Nm)TKmax
25326
344212
12015035
32040085
650810170
10601350190
19002150400
39004900
1000012400
2000025000
Overall length (mm)A42 56 64 76 96 110 138 177 227 282
Outside diameter (mm)B/B132 43 56 66.5 82 102 136.5 160/159 225/208 285
Mounting length (mm)C15 20 23 28 36 42 53 70 90 112
Inside diameter range H7 (mm)D1/26-16 8-24 12-32 19-35 20-45 28-55 32-80 40-95 50-130 60-170
Inside diameter range H7 (inch) D1/20,250"-
0,625"
0,313"-
0,875"
0,500"-
1,250"
0,750"-
1,375"
0,875"-
1,750"
1,125"-
2,125"
1,375"-
3,125"
1,600"-
3,700"
2,000"-
5,000"
2,400"-
6,500"
Inside diameter of elastomer (mm)DE14.2 19.2 26.2 29.2 36.2 46.2 60.5 80 113 145
Clamping screw (ISO 4762)E3x M3 6x M4 4x M5 8x M5 8x M6 8x M8 8x M10 10x M10 10x M12 10x M16
Tightening torque of the
clamping screw (Nm)
E
2 3 6 7 12 35 55 60 100 160
Distance (mm)F              51 66 80
Moment of inertia per Hub
(10-3 kgm2)
J1/J2
0.004 0.015 0.05 0.1 0.3 0.85 9.2 31.7 135.7 469.2
Approx. weight (kg) 0.08 0.12 0.3 0.5 0.9 1.5 9.6 15 35 73
Speed standard (min-1) 20,000 19,000 14,000 13,000 10,000 9,000 4,000 3,500 3,000 2,000
*Speed balanced (103min-1) 
536340
456035
313125
222618
222616
161712
13138
10 8 6.5
CAD Portal 10 20 60 150 300 450 800 2500 4500 9500
2D/3D Data 

Properties

  • Design: Two coupling hubs are concentrically machined with curved jaws.
  • Tolerance: Overall clearance between shaft and hub 0.01 to 0.05 mm.
  • Material:
    • clamping hub and clamping ring: up to series 450 high strength aluminum, 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 EK6:
    • high clamping forces
    • concentrically machined hubs
    • vibration damping
    • electrically isolating
    • backlash free
    • press fit design
    • axial mounting possible

Overview