EK2
Elastomer Coupling with clamping hub

6 - 2,150 Nm

EK2 ELASTOMER COUPLING WITH CLAMPING HUB

Specifications EK2

EK2 series 20 60 150 300 450 800
Type (Elastomer insert)
ABC
ABC
ABC
ABC
ABC
ABC
Rated torque (Nm) TKN
17216
607520
16020042
32540584
53066095
9501100240
Max. torque* (Nm) TKmax
344212
12015035
32040085
650810170
10601350190
19002150400
Overall length (mm) A 66 78 90 114 126 162
Outer diameter (mm)B 42 56 66.5 82 102 136.5
Outer diameter with screwhead (mm) BS 44.5 57 68 85 105 139
Mounting length (mm) C 25 30 35 45 50 65
Inner diameter possible
from Ø to Ø H7 (mm)
D1/2
8-25 12-32 19-36 20-45 28-60 35-80
Inner diameter possible
from Ø to Ø H7 (inch)
D1/2
0,375"-
0,875"
0,500"-
1,250"
0,750"-
1,375"
0,875"-
1,750"
1,125"-
2,250"
1,500"-
3,125"
Inner diameter
(Elastomer insert) (mm)
DE
19.2 26.2 29.2 36.2 46.2 60.5
Screw (ISO 4762/12.9) E M5 M6 M8 M10 M12 M16
Tighting torque of the mounting
screw (Nm)
E
8 15 35 70 120 290
Distance between centers (mm) F 15.5 21 24 29 38 50.5
Distance (mm) G 8.5 10 12 15 17.5 23
Hub length (mm) H 39 46 52.5 66 73 93.5
Mass moment of inertia per hub
(10-3 kgm2)
J1/J2
0.016 0.05 0.12 0.4 0.9 9.5
Approx. weight (kg)0.15 0.35 0.6 1.1 1.7 10
Speed standard (min-112,500 11,000 10,000 9,000 8,000 4,000
Speed balanced (103min-1)  
456035
313125
222618
222616
161712
13138
Rated torque: 6 - 2.150 Nm
CAD Portal 20 60 150 300 450 800
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: up to series 450 high strength aluminum,
from 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 EK2:
    • easy assembly
    • concentrically machined hubs
    • vibration damping
    • backlash free
    • electrically isolating
    • press fit design

Overview