ES2
Torque Limiter with clamping hub, press-fit version for direct drives

1 - 1,800 Nm

ES2 TORQUE LIMITER WITH CLAMPING HUB, PRESS-FIT VERSION FOR DIRECT DRIVES

Specifications ES2

ES2 series 5 10 20 60 150 300 450 800 1500
Type (Elastomer insert)  
AB
AB
AB
AB
AB
AB
AB
AB
AB
Rated torque (Nm) TKN
912
12.516
1721
6075
150200
325405
530660
9501100
19502450
Max. torque* (Nm) TKmax
1824
2532
3442
120150
320400
650810
10601350
19002150
39004900
Adjustment range possible from - to
(approx. values) (Nm)
TKN
1-3
oder
3-6
2-6
oder
4-12
10-25
oder
20-40
10-30
oder
25-80
20-70
45-150
80-180
100-200
150-240
200-320
80-200
200-350
300-500
400-650
500-800
600-900
600-850
700-1200
1000-1800
Adjustment range possible from - to
(approx. values), full disengagement (Nm)
TKNF
2.5-4.5 2-5
oder
5-10
8-20
oder
16-30
20-40
oder
30-60
20-60
40-80
80-150
120-180
oder
180-300
60-150
100-300
250-500
200-400
oder
450-800
1000-1250
oder
1250-1500
Overall length (mm) A 50 60 86 96 106 140 164 179 245
Overall length, full disengagement (mm) AF 50 60 86 96 108 143 168 190 257
Outher diameter of actuation ring Ø (mm) B 35 45 65 73 92 120 135 152 174
Outher diameter of actuation ring Ø,
full disengagement (mm)
BF
42 51.5 70 83 98 132 155 177 187
Fit length (mm)C18 10.3 17 20 21 31 34 46 88
Fit length (mm) C2 14 16 27 31 35 42 51 45 67
Length of hub (mm) C3 16.7 20.7 31 36 39 52 57 74 120
Inner diameter from Ø to Ø H7 (mm) D1 4-12.7 5-16 8-25 12-32 19-36 20-45 28-60 35-80 35-90
Inner diameter from Ø to Ø H7 (mm) D2 6-14 6-19 12-30 15-32 19-42 30-60 35-60 40-75 50-80
Inner diameter from Ø to Ø H7 (inch) D1/2 0,175"-
0,500"
0,190" -
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"
1,500"-
3,500"
Inner diameter from Ø to Ø H7 (inch) D2 0,250"-
0,550"
0,230"-
0,750"
0,500"-
1,125"
0,625"-
1,250"
0,750"-
1,625"
1,250"-
2,250"
1,500"-
2,250"
1,625"-
2,875"
2,000"-
3,000"
Inner diameter (Elastomer insert) DE 10.2 14.2 19.2 26.2 29.2 36.2 46.2 60.5 79
Diameter of the hub (mm) E1 25 32 42 56 66.5 82 102 136.5 160
Diameter of the hub (mm) E2 19 40 55 66 81 110 123 132 157
Distance (mm)F15 17 24 30 31 35 45 50 63
Distance, (full disengagement) (mm)FF14 16 22 29 30 35 43 54 61
Distance (mm)G14 5 8.5 10 11 15 17.5 23 36
Distance (mm)G25 5 7.5 9.5 11 13 17 18 22.5
Distance between centers (mm)H18 10.5 15 21 24 29 38 50.5 57
Clamping screw (ISO 4762)I1M3 M4 M5 M6 M8 M10 M12 M16 2xM16
Tightening torque of the mounting screw (Nm)I12 4.5 8 15 35 70 120 290 290
Distance between centers SK-side (mm)H210 15 19 23 27 39 41 48 55
Clamping screw (ISO 4762)I2M4 M4 M6 M8 M10 M12 M16 2x M16 2xM20
Tightening torque (Nm)I24 4.5 15 40 70 130 200 250 470
Diameter with ScrewheadKS25 32 44.5 57 68 85 105 139 155
Approx. weight (kg) 0.2 0.3 0.6 1.0 2.4 5.8 9.3 14.3 26
Moment of inertia (10-3 kgm2)Jges0.02 0.06 0.25 0.7 2.3 11 22 33.5 185
Actuation path (mm)0.8 1.2 1.5 1.7 1.9 2.2 2.2 2.2 3.0
CAD Portal 5 10 20 60 150 300 450 800 1500
2D/3D Data 

Properties

  • Design:
    • two coupling hubs are concentrically machined with curved jaws, one side with an integral torque limiter.

    • the torque limiter is available in single position, multi position, load holding or full-disengagement versions.
  • Tolerance: Overall clearance between shaft and hub 0.01 to 0.05 mm.
  • Material:
    • torque limiter: high strength hardened steel with rust protected surface (oxidized)
    • clamping hub D1: up to series 450 high strength aluminum, series 800 and up steel

    • clamping hub D2: up to series 60 high strength
aluminum, from series 150 and up steel
    • elastomer insert: precision molded, wear resistant, and thermally stable polymer
  • Properties of Elastomer Coupling model ES2:
    • reliable torque overload protection
    • short compact design
    • backlash free due to patented R+W design
    • disengagement within msecs
    • large actuatuion path when disengaging
    • electrically isolating
    • press fit design