EKL
Elastomer Coupling with clamping hub

0.5 - 2,150 Nm

EKL ELASTOMER COUPLING WITH CLAMPING HUB

Specifications EKL

EKL series 2 5 10 20 60 150 300 450 800
Type (Elastomer insert)
 A BC
AB C 
AB C 
ABC
ABC
ABC
ABC
ABC
ABC
Rated torque (Nm)TKN
22.40.5
9122
12.5164
17216
607520
16020042
32540584
53066095
9501100240
Max. torque* (Nm)TKmax
44.81
18244
25326
344212
12015035
32040085
650810170
10601350190
19002150400
Overall length (mm)A20 26 32 50 58 62 86 94 123
Outer diameter (mm)B16 25 32 42 56 66.5 82 102 136.5
Outer diameter with screwhead (mm)BS17 25 32 44.5 57 68 85 105 139
Mounting length (mm)C6 8 10.3 17 20 21 31 34 46
Inner diameter possible

from Ø to Ø H7 (mm)
D1/2
3-8 4-12.7 4-16 8-25 12-32 19-36 20-45 28-60 35-80
Inner diameter possible

from Ø to Ø H7 (inch)
D1/2
0,125"-
0,313"
0,250"-
0,500"
0,250"-
0,625"
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
6.2 10.2 14.2 19.2 26.2 29.2 36.2 46.2 60.5
Screw (ISO 4762/12.9)EM2 M3 M4 M5 M6 M8 M10 M12 M16
Tighting torque of the mounting
screw (Nm)
E
0.6 2 4 8 15 35 70 120 290
Distance between centers (mm)F5.5 8 10.5 15.5 21 24 29 38 50.5
Distance (mm)G3 4 5 8.5 10 11 15 17.5 23
Hub length (mm)H12 16.7 20.7 31 36 39 52 57 74
Mass moment of inertia per hub
(10-3 kgm2)
J1/J2
0.0003 0.002 0.003 0.01 0.04 0.08 0.3 0.66 8
Approx. weight (kg)0.008 0.02 0.05 0.12 0.3 0.5 0.9 1.5 8.5
Speed standart (min-1)15,000 15,000 13,000 12,500 11,000 10,000 9,000 8,000 4,000
*Speed balanced (103min-1)
606745
576543
536340
456035
313125
222618
222616
161712
13138
Speed up to 28,000 rev / min
CAD Portal 2 5 10 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 EKL:
    • short compact design
    • easy assembly
    • vibration damping
    • electrically isolating
    • press fit design
    • backlash free

Overview