EK1

Elastomer Spider Coupling with keyway connection

  • 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

EK1 ELASTOMER SPIDER COUPLING WITH KEYWAY CONNECTION

Specifications EK1

EK1 series   2 5 10 20 60 150 300 450 800 2500 4500 9500
Type (Elastomer insert)
A B C
A B C
A B C
A B C
A B C
A B C
A B C
A B C
A B C
A B C
A B C
A B C
Rated torque (Nm) TKN
2 2.4 0.5
9 12 2
12.5 16 4
17 21 6
60 75 20
160 200 42
325 405 84
530 660 95
950 1100 240
1950 2450
5000 6200
10000 12500
Max. torque (Nm) TKmax
4 4.8 1
18 24 4
25 32 6
34 42 12
120 150 35
320 400 85
650 810 170
1060 1350 190
1900 2150 400
3900 4900
10000 12400
20000 25000
Overall length (mm) A 20 34 35 66 78 90 114 126 162 213 272 341
Outside diameter (mm) B/B1 15 25 32 42 56 66.5 82 102 136.5 160/155 225/190 290/240
Mounting length (mm) C 6.5 12 12 25 30 35 45 50 65 88 113 142
Inside diameter (pilot bored) (mm) DV 3 4 6 7 9 14 16 22 29 30 40 50
Inside diameter range H7 (mm) D1/2 3-9 6-15 6-18 8-25 12-32 19-38 20-45 28-60 32-80 30-95 40-130 50-170
Inside diameter range H7 (inch) D1/2 0,125"-
0,313"
0,250"-
0,437"
0,250"-
0,625"
0,375"-
0,875"
0,500"-
1,250"
0,750"-
1,375"
0,875"-
1,750"
1,125"-
2,250"
1,375"-
3,125"
1,250"-
3,700"
1,580"-
5,000"
2,000"-
6,500"
Inside diameter of elastomer (mm) DE 6.2 10.2 14.2 19.2 26.2 29.2 36.2 46.2 60.5 79 113 145
Set screws (DIN 916) E see table (depending on the bore diameter) **
Distance (mm) G 3 5 6 9 11 12 15 17 30 25 30 40
Possible shortening length (mm) H 4 6 6 19 22 26 32 37 43 69 89 110
Moment of inertia per Hub
(10-3 kgm2)
J1/J2 0.0001 0.001 0.003 0.02 0.06 0.1 0.4 1.1 12 40 147 480
Approx. weight (kg)   0.008 0.03 0.08 0.15 0.35 0.6 1.1 1.7 11 12.5 25 53
Speed standard (min-1)   15,000 15,000 13,000 12,500 11,000 10,000 9,000 8,000 4,000 3,500 3,000 2,000
*Speed balanced (103min-1)  
60 67 45
57 65 43
53 63 40
45 50 35
31 31 25
22 26 18
22 26 16
16 17 12
13 13 8
10 8 6.5
CAD Portal   2 5 10 20 60 150 300 450 800 2500 4500 9500
2D/3D Data  

Ordering Example EK1

Ordering Example: EK1

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

Elastomer insert

For more Information, please click here.

Sizing and Selection

For more Information, please click here.

Installation instruction

Please click here for download.

ATEX

For more Information, please click here.

Download

EK1

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Contact

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USA

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