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Shrink Disc RfN 4061 Standard Series half

Standard series – this range is the most popular, being used in most applications.

RINGFEDER® RfN 4061

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metric inch
CAD d D dw d1 LB T nSc DG TA
  mm mm mm mm mm Nm Stück mm Nm
  14 37 10 24 9,5 15 3 4 2,4
  14 37 11 24 9,5 17,5 3 4 2,4
  14 37 12 24 9,5 22,5 3 4 2,4
  16 41 12 27 9,5 35 4 5 4
  16 41 13 27 9,5 45 4 5 4
  16 41 14 27 9,5 55 4 5 4
  18 44 14 29 9,5 45 4 5 4
  18 44 15 29 9,5 50 4 5 4
  18 44 16 29 9,5 60 4 5 4
  20 46 15 32 11,5 55 5 5 4
  20 46 16 32 11,5 70 5 5 4
  20 46 17 32 11,5 80 5 5 4
  21 50 16 36 11,8 100 6 5 5
  21 50 17 36 11,8 115 6 5 5
  21 50 18 36 11,8 130 6 5 5
  24 50 19 36 11,8 120 6 5 5
  24 50 20 36 11,8 135 6 5 5
  24 50 21 36 11,8 150 6 5 5
  30 52 24 41,5 12,8 175 7 5 5
  30 52 25 41,5 12,8 200 7 5 5
  30 52 26 41,5 12,8 220 7 5 5
  36 72 28 52 13,8 295 5 6 12
  36 72 30 52 13,8 345 5 6 12
  36 72 31 52 13,8 350 5 6 12
  38 72 29 55 15,2 350 6 6 12
  38 72 30 55 15,2 385 6 6 12
  38 72 31 55 15,2 390 6 6 12
  40 72 30 57 14,8 360 6 6 12
  40 72 31 57 14,8 365 6 6 12
  40 72 32 57 14,8 395 6 6 12
  44 80 32 63 15,3 400 7 6 12
  44 80 35 63 15,3 500 7 6 12
  44 80 36 63 15,3 525 7 6 12
  48 80 36 68 15,8 450 7 6 12
  48 80 38 68 15,8 525 7 6 12
  48 80 40 68 15,8 600 7 6 12
  50 90 38 70 16,3 675 9 6 12
  50 90 40 70 16,3 750 9 6 12
  50 90 42 70 16,3 850 9 6 12
  55 100 42 75 17,8 650 8 6 12
  55 100 45 75 17,8 775 8 6 12
  55 100 48 75 17,8 900 8 6 12
  62 110 48 86 17,8 1200 12 6 12
  62 110 50 86 17,8 1325 12 6 12
  62 110 52 86 17,8 1400 12 6 12
  68 115 50 86 17,8 950 10 6 12
  68 115 55 86 17,8 1125 10 6 12
  68 115 60 86 17,8 1425 10 6 12
  75 138 55 100 19,7 1325 7 8 30
  75 138 60 100 19,7 1650 7 8 30
  75 138 65 100 19,7 2025 7 8 30
  80 145 60 100 19,7 1600 7 8 30
  80 145 65 100 19,7 1950 7 8 30
  80 145 70 100 19,7 2300 7 8 30
  85 155 60 114 23 2425 11 8 30
  85 155 65 114 23 2900 11 8 30
  85 155 70 114 23 3400 11 8 30
  90 155 65 114 23 2400 10 8 30
  90 155 70 114 23 3025 10 8 30
  90 155 75 114 23 3650 10 8 30
  95 170 65 127 23,5 2675 12 8 30
  95 170 70 127 23,5 3375 12 8 30
  95 170 75 127 23,5 4075 12 8 30
  100 170 70 127 25,5 3475 12 8 30
  100 170 75 127 25,5 3800 12 8 30
  100 170 80 127 25,5 4550 12 8 30
  110 185 75 145 28,5 4075 10 10 59
  110 185 80 145 28,5 5050 10 10 59
  110 185 85 145 28,5 6100 10 10 59
  115 185 80 145 32 4750 10 10 59
  115 185 90 145 32 6050 10 10 59
  115 185 95 145 32 7025 10 10 59
  125 215 85 160 32 5525 12 10 59
  125 215 90 160 32 6550 12 10 59
  125 215 95 160 32 7575 12 10 59
  140 230 95 175 35,5 7550 10 12 100
  140 230 100 175 35,5 8775 10 12 100
  140 230 105 175 35,5 10000 10 12 100
  165 290 115 210 40,5 15700 8 16 250
  165 290 120 210 40,5 19700 8 16 250
  165 290 125 210 40,5 17750 8 16 250
  185 330 135 236 48 26250 10 16 250
  185 330 140 236 48 28675 10 16 250
  185 330 145 236 48 31200 10 16 250
  195 350 140 246 48 32975 12 16 250
  195 350 150 246 48 38800 12 16 250
  195 350 155 246 48 41875 12 16 250
  200 350 150 246 48 37500 12 16 250
  200 350 155 246 48 40500 12 16 250
  200 350 160 246 48 43600 12 16 250
CAD d D dw d1 LB T nSc DG TA
  inch inch inch inch inch ft-lbs pcs. mm ft-lbs
  0.551 1.457 0.394 0.945 0.374 11 3 M4 2
  0.551 1.457 0.433 0.945 0.374 13 3 M4 2
  0.551 1.457 0.472 0.945 0.374 17 3 M4 2
  0.630 1.614 0.472 1.063 0.374 26 4 M5 3
  0.630 1.614 0.512 1.063 0.374 33 4 M5 3
  0.630 1.614 0.551 1.063 0.374 41 4 M5 3
  0.709 1.732 0.551 1.142 0.374 33 4 M5 3
  0.709 1.732 0.591 1.142 0.374 37 4 M5 3
  0.709 1.732 0.630 1.142 0.374 44 4 M5 3
  0.787 1.811 0.591 1.260 0.453 41 5 M5 3
  0.787 1.811 0.630 1.260 0.453 52 5 M5 3
  0.787 1.811 0.669 1.260 0.453 59 5 M5 3
  0.827 1.969 0.630 1.417 0.465 74 6 M5 3.7
  0.827 1.969 0.669 1.417 0.465 85 6 M5 3.7
  0.827 1.969 0.709 1.417 0.465 96 6 M5 3.7
  0.945 1.969 0.748 1.417 0.465 89 6 M5 3.7
  0.945 1.969 0.787 1.417 0.465 100 6 M5 3.7
  0.945 1.969 0.827 1.417 0.465 111 6 M5 3.7
  1.181 2.047 0.945 1.634 0.504 129 7 M5 3.7
  1.181 2.047 0.984 1.634 0.504 148 7 M5 3.7
  1.181 2.047 1.024 1.634 0.504 162 7 M5 3.7
  1.417 2.835 1.220 2.047 0.543 258 5 M6 9
  1.417 2.835 1.181 2.047 0.543 254 5 M6 9
  1.417 2.835 1.102 2.047 0.543 218 5 M6 9
  1.496 2.835 1.142 2.165 0.598 258 6 M6 9
  1.496 2.835 1.181 2.165 0.598 284 6 M6 9
  1.496 2.835 1.220 2.165 0.598 288 6 M6 9
  1.575 2.835 1.181 2.244 0.583 266 6 M6 9
  1.575 2.835 1.220 2.244 0.583 269 6 M6 9
  1.575 2.835 1.260 2.244 0.583 291 6 M6 9
  1.732 3.150 1.260 2.480 0.602 295 7 M6 9
  1.732 3.150 1.378 2.480 0.602 369 7 M6 9
  1.732 3.150 1.417 2.480 0.602 387 7 M6 9
  1.890 3.150 1.575 2.677 0.622 443 7 M6 9
  1.890 3.150 1.496 2.677 0.622 387 7 M6 9
  1.890 3.150 1.417 2.677 0.622 332 7 M6 9
  1.969 3.543 1.654 2.756 0.642 627 9 M6 9
  1.969 3.543 1.496 2.756 0.642 498 9 M6 9
  1.969 3.543 1.575 2.756 0.642 553 9 M6 9
  2.165 3.937 1.890 2.953 0.701 664 8 M6 9
  2.165 3.937 1.772 2.953 0.701 572 8 M6 9
  2.165 3.937 1.654 2.953 0.701 479 8 M6 9
  2.441 4.331 1.890 3.386 0.701 885 12 M6 9
  2.441 4.331 1.969 3.386 0.701 977 12 M6 9
  2.441 4.331 2.047 3.386 0.701 1033 12 M6 9
  2.677 4.528 1.969 3.386 0.701 701 10 M6 9
  2.677 4.528 2.165 3.386 0.701 830 10 M6 9
  2.677 4.528 2.362 3.386 0.701 1051 10 M6 9
  2.953 5.433 2.165 3.937 0.776 977 7 M8 22
  2.953 5.433 2.362 3.937 0.776 1217 7 M8 22
  2.953 5.433 2.559 3.937 0.776 1494 7 M8 22
  3.150 5.709 2.362 3.937 0.776 1180 7 M8 22
  3.150 5.709 2.559 3.937 0.776 1438 7 M8 22
  3.150 5.709 2.756 3.937 0.776 1696 7 M8 22
  3.346 6.102 2.362 4.488 0.906 1789 11 M8 22
  3.346 6.102 2.559 4.488 0.906 2139 11 M8 22
  3.346 6.102 2.756 4.488 0.906 2508 11 M8 22
  3.543 6.102 2.559 4.488 0.906 1770 10 M8 22
  3.543 6.102 2.756 4.488 0.906 2231 10 M8 22
  3.543 6.102 2.953 4.488 0.906 2692 10 M8 22
  3.740 6.693 2.559 5.000 0.925 1973 12 M8 22
  3.740 6.693 2.756 5.000 0.925 2489 12 M8 22
  3.740 6.693 2.953 5.000 0.925 3006 12 M8 22
  3.937 6.693 2.756 5.000 1.004 2563 12 M8 22
  3.937 6.693 2.953 5.000 1.004 2803 12 M8 22
  3.937 6.693 3.150 5.000 1.004 3356 12 M8 22
  4.331 7.283 2.953 5.709 1.122 3006 10 M10 45
  4.331 7.283 3.346 5.709 1.122 4499 10 M10 45
  4.331 7.283 3.150 5.709 1.122 3725 10 M10 45
  4.528 7.283 3.150 5.709 1.260 3503 10 M10 45
  4.528 7.283 3.543 5.709 1.260 4462 10 M10 45
  4.528 7.283 3.740 5.709 1.260 5181 10 M10 45
  4.921 8.465 3.346 6.299 1.260 4075 12 M10 45
  4.921 8.465 3.543 6.299 1.260 4831 12 M10 45
  4.921 8.465 3.740 6.299 1.260 5587 12 M10 45
  5.512 9.055 3.740 6.890 1.398 5569 10 M12 75
  5.512 9.055 3.937 6.890 1.398 6472 10 M12 75
  5.512 9.055 4.134 6.890 1.398 7376 10 M12 75
  6.496 11.417 4.528 8.268 1.594 11580 8 M16 185
  6.496 11.417 4.724 8.268 1.594 14530 8 M16 185
  6.496 11.417 4.921 8.268 1.594 13092 8 M16 185
  7.283 12.992 5.709 9.291 1.890 23012 10 M16 185
  7.283 12.992 5.315 9.291 1.890 19361 10 M16 185
  7.283 12.992 5.512 9.291 1.890 21150 10 M16 185
  7.677 13.780 5.906 9.685 1.890 28617 12 M16 185
  7.677 13.780 6.102 9.685 1.890 30885 12 M16 185
  7.677 13.780 5.512 9.685 1.890 24321 12 M16 185
  7.874 13.780 5.906 9.685 1.890 27659 12 M16 185
  7.874 13.780 6.102 9.685 1.890 29871 12 M16 185
  7.874 13.780 6.299 9.685 1.890 32158 12 M16 185

Half shrink discs

With half shrink discs HT/HC only 50% of stated T is transmitted.

  • Type HT (Threaded holes in thrust ring)
  • Type HC (Clearance holes in thrust ring)

Characteristics

Shrink discs are the modern method for creating a mechanical shrink fit. The shrink disc consists of either one or two thrust rings with tapered bores and a mating tapered inner ring. By tightening locking screws the thrust rings are drawn together compressing the inner ring and applying pressure to the outside of the hub clamping it to the shaft. Being positioned around the hub there is only one interface transmitting the loads giving the shrink disc method distinct advantages such as offering the possibility of very concentric and well balanced connections that are suited to high speed applications. Traditional shrink fits require complicated calculations, close machining tolerances and fine surface finishes, they also need considerable effort with mounting and removal. The shrink disc connection has none of these disadvantages and is better than any of the other usual connection methods with regard to fatigue strength under alternating torsional stress.

  • Light design – suitable for middle transmissible values when space is limited.
  • Compensation of small tolerance errorsplease contact our engineers.
  • Maximum reliability – suitable for static, dynamic and impact loads.
  • Slitted inner ring – low forces and pressures on hub and shaft.
  • Simplified manufacture – only plain shaft and bore diameters with easily achieved surface finish and tolerances are required.
  • Easy mounting – no steps, keyways, splines are required, therefore hubs can be located and locked at any point or angle on the shaft. RINGFEDER® Shrink Discs use standard screws tightened with standard tools. No additional machining or fitting work is required.
  • Easy replacement – the RINGFEDER® shrink disc is free from any form fit.
  • Low susceptibility to contamination – when the locking screws are tightened the functional contact surfaces are pressed firmly together and prevent the ingress of dirt and moisture.

Surface finishes

For shaft diameter dw: Peak-to-valley height Ra ≤ 3,2 μm.

Tolerances

For shaft see table at right

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