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Schmidt-Kupplung Coupling
SK Series

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SK Series

Schmidt-Kupplung Coupling

  • SK – 2D (.dwg)
  • SK – 3D (.step)
Dimensions / Performance
SIZE CAD Performance CT
kNm/rad		 Dimensions
ΔKr min
mm		 ΔKr
mm		 ΔKv
mm		 ΔKw
°		 TKN
Nm		 TKmax
Nm		 min-1 D
mm		 R
mm		 J
kg cm2		 m
kg		 L
mm		 L1
mm		 F
mm		 d
mm		 M
SK 4.2.6/3 6 23 45 0.8 45 85 2,800 10 60 62 2.8 0.5 44 8 45 25 3xM6
SK 4.2.8/5 0.5 110 210 1,800 24 82 84 8.9 0.8 67 40 5xM6
SK 4.5.6/3 13 50 95 0.8 45 85 1,900 10 60 62 3.1 0.6 45 25 3xM6
SK 4.5.8/5 0.5 110 210 1,600 24 82 84 9.1 1.1 67 40 5xM6
SK 7.3.7/3 9 34 64 0.8 110 210 3,500 24 70 74 7.5 1.1 74 12.5 48 25 3xM10
SK 7.3.9/3 0.8 150 290 3,100 33 90 94 21.5 1.7 70 45 3xM10
SK 7.7.9/3 17 66 126 0.8 150 290 2,200 33 90 94 24 1.9 70 45 3xM10
SK 7.7.12/4 0.5 280 550 1,900 63 120 124 63 3 98 50 4xM10
SK 10.5.12/3 14 53 100 0.5 360 710 2,300 81 120 120 95 4.5 101 17 90 50 3xM12
SK 10.5.12/4 0.5 480 945 2,300 108 120 120 105 5 90 50 4xM12
SK 10.9.12/3 22 85 162 0.5 360 710 1,700 81 120 120 107 5.1 90 50 3xM12
SK 10.9.14/4 0.5 590 1,155 1,800 132 140 140 187 6.8 110 50 4xM12
SK 13.6.14/3 17 64 122 0.5 630 1,240 1,700 142 140 143 275 9.8 134 26 100 55 3xM16
SK 13.6.16/4 0.5 1,010 1,980 1,600 227 158 164 475 13 120 60 4xM16
SK 13.9.14/3 22 85 162 0.5 630 1,240 1,500 142 140 143 285 10 100 55 3xM16
SK 13.9.16/4 0.5 1,010 1,980 1,400 227 158 164 480 13.2 120 60 4xM16
SK 16.7.16/3 18 68 129 0.5 1,130 2,200 1,500 252 158 164 550 15 155 31 115 60 3xM16
SK 16.7.18/4 0.5 1,760 3,440 1,400 395 180 184 680 17 135 70 4xM16
SK 16.10.16/3 25 95 180 0.5 1,130 2,200 1,200 252 158 164 585 16 115 60 3xM16
SK 16.10.18/4 0.5 1,760 3,440 1,200 395 180 180 910 20 135 70 4xM16
SK 20.9.20/3 22 85 162 0.3 2,160 4,220 1,200 484 200 202 1500 26 196 33 150 80 3xM20
SK 20.9.25/4 0.3 3,830 7,500 1,000 860 250 252 3,700 41 200 100 4xM20
SK 20.15.20/3 37 142 270 0.3 2,160 4,220 900 484 200 202 1,850 32 150 80 3xM20
SK 20.15.25/4 0.3 3,830 7,500 800 860 250 252 4,100 44 200 100 4xM20
  • TKN= rated torque, TKMAX= Maximum torque capacity, min-1 = Max. rpm, ΔKv= Maximum linear range of the coupling, △Kr= Maximum radial offset capacity, △Kr min= Min. required radial offset
  • △Kw= Max. angular misalignment capacity, Ct= Torsional stiffness, J= Moment of inertia, m= Mass, L= Coupling length, M= Numbers of threaded bores x bolt size, F= Bolt circle diameter
  • Size SK 4.2.6/3 – SK 16.10.18/4 allows an axial misalignment up to 1mm; Size SK 20.9.20/3 – SK 20.15.25/4 up to 2mm.