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Locking Assembly RfN 7515

Especially for the bending moment transmission designed 3 part Locking Assembly with reduced stresses in the Locking Assembly itself. Available in sizes 60 to 640 mm.

RINGFEDER® RfN 7515

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metric inch
CAD d D L L1 L3 T pW pN TA DN min bei Rp0,2 300 N/mm2 DN min bei Rp0,2 400 N/mm2
  mm mm mm mm mm Nm N/mm2 N/mm2 Nm mm mm
  60 95 58 50 42 4299 186 118 41 122 115
  70 110 70 60 50 7280 197 125 83 143 134
  80 120 70 60 50 10399 216 144 83 162 150
  90 130 70 60 50 12869 211 146 83 177 163
  100 145 82 70 60 18881 209 144 145 196 182
  110 155 82 70 60 20769 190 135 145 205 191
  120 165 82 70 60 24923 191 139 145 221 205
  130 180 91 79 65 34364 207 150 145 246 227
  140 190 91 79 65 39651 206 152 145 261 241
  150 200 91 79 65 42483 193 144 145 270 250
  160 210 91 79 65 48336 193 147 145 285 264
  170 225 106 92 78 65790 195 147 230 306 283
  180 235 106 92 78 69660 184 141 230 315 292
  190 250 116 102 88 78432 165 125 230 324 303
  200 260 116 102 88 92880 176 135 230 344 320
  220 285 126 110 96 116459 173 133 355 375 436
  240 305 124 108 96 169394 211 166 355 432 394
  260 325 127 111 96 183510 176 141 355 435 404
  280 355 131 111 96 230199 205 162 690 497 456
  300 375 131 111 96 263085 204 163 690 527 482
  320 405 156 136 124 350780 189 150 690 552 510
  340 425 156 136 124 372704 178 143 690 571 529
  360 455 175 155 140 487557 174 137 930 604 562
  380 475 175 155 140 514644 164 132 930 623 581
  400 495 175 155 140 595903 172 139 930 659 612
  420 515 175 155 140 682580 179 146 930 696 644
  440 535 175 155 140 715084 170 140 930 715 663
  460 555 175 155 140 747588 163 135 930 733 683
  480 575 175 155 140 812595 163 136 930 761 708
  500 595 175 155 140 846453 156 131 930 779 727
  520 615 175 155 140 985949 168 142 930 825 765
  540 635 175 155 140 1023870 162 138 930 844 784
  560 655 175 155 140 1137633 167 143 930 880 816
  580 675 175 155 140 1178263 162 139 930 899 835
  600 695 175 155 140 1218893 156 135 930 917 854
  620 715 175 155 140 1259522 151 131 930 936 874
  640 735 175 155 140 1300152 146 128 930 955 893
CAD d D L L1 L3 T pW pN TA DN min bei Rp0,2 300 N/mm2 DN min bei Rp0,2 400 N/mm2
  inch inch inch inch inch ft-lbs psi psi ft-lbs inch inch
  2.362 3.740 2.283 1.969 1.654 3171 26957 17101 30 4.803 4.528
  2.756 4.331 2.756 2.362 1.969 5370 28551 18116 61 5.630 5.276
  3.150 4.724 2.756 2.362 1.969 7670 31304 20870 61 6.378 5.906
  3.543 5.118 2.756 2.362 1.969 9492 30580 21159 61 6.969 6.417
  3.937 5.709 3.228 2.756 2.362 13926 30290 20870 107 7.717 7.165
  4.331 6.102 3.228 2.756 2.362 15319 27536 19565 107 8.071 7.520
  4.724 6.496 3.228 2.756 2.362 18383 27681 20145 107 8.701 8.071
  5.118 7.087 3.583 3.110 2.559 25346 30000 21739 107 9.685 8.937
  5.512 7.480 3.583 3.110 2.559 29245 29855 22029 107 10.276 9.488
  5.906 7.874 3.583 3.110 2.559 31334 27971 20870 107 10.630 9.843
  6.299 8.268 3.583 3.110 2.559 35651 27971 21304 107 11.220 10.394
  6.693 8.858 4.173 3.622 3.071 48525 28261 21304 170 12.047 11.142
  7.087 9.252 4.173 3.622 3.071 51379 26667 20435 170 12.402 11.496
  7.480 9.843 4.567 4.016 3.465 57849 23913 18116 170 12.756 11.929
  7.874 10.236 4.567 4.016 3.465 68506 25507 19565 170 13.543 12.598
  8.661 11.220 4.961 4.331 3.780 85897 25072 19275 262 14.764 17.165
  9.449 12.008 4.882 4.252 3.780 124940 30580 24058 262 17.008 15.512
  10.236 12.795 5.000 4.370 3.780 135350 25546 20465 262 17.402 16.063
  11.024 13.976 5.157 4.370 3.780 169788 29710 23478 509 19.567 17.953
  11.811 14.764 5.157 4.370 3.780 194044 29565 23623 509 20.748 18.976
  12.598 15.945 6.142 5.354 4.882 258725 27391 21739 509 21.732 20.079
  13.386 16.732 6.142 5.354 4.882 274896 25797 20725 509 22.480 20.827
  14.173 17.913 6.890 6.102 5.512 359608 25217 19855 686 23.780 22.126
  14.961 18.701 6.890 6.102 5.512 379587 23768 19130 686 24.528 22.874
  15.748 19.488 6.890 6.102 5.512 439521 24928 20145 686 25.945 24.094
  16.535 20.276 6.890 6.102 5.512 503452 25942 21159 686 27.402 25.354
  17.323 21.063 6.890 6.102 5.512 527426 24638 20290 686 28.150 26.102
  18.110 21.850 6.890 6.102 5.512 551400 23623 19565 686 28.858 26.890
  18.898 22.638 6.890 6.102 5.512 599347 23623 19710 686 29.961 27.874
  19.685 23.425 6.890 6.102 5.512 624320 22609 18986 686 30.669 28.622
  20.472 24.213 6.890 6.102 5.512 727208 24348 20580 686 32.480 30.118
  21.260 25.000 6.890 6.102 5.512 755178 23478 20000 686 33.228 30.866
  22.047 25.787 6.890 6.102 5.512 839086 24203 20725 686 34.646 32.126
  22.835 26.575 6.890 6.102 5.512 869054 23478 20145 686 35.394 32.874
  23.622 27.362 6.890 6.102 5.512 899021 22609 19565 686 36.102 33.622
  24.409 28.150 6.890 6.102 5.512 928988 21884 18986 686 36.850 34.409
  25.197 28.937 6.890 6.102 5.512 958956 21159 18551 686 37.598 35.157

Characteristics

  • Precision Locking Assembly for transmission of torques, axial forces and special optimised for the transmission of bending moments, with special requirements to the true running of the clamped pieces.
  • Special features - Through the long and flat cones one Locking Assembly RfN 7515 can transmit torques and axial forces and bending loads. During mounting occurs a slight axial movement from Locking Assembly and hub.
  • Bending moment and radial loads – combined loads can be transmitted (Please contact our technical department for assistance).
  • Excellent centering ability – with a relatively wide design.

Example applications:

  • belt drums
  • gear wheels

Mounting of Locking Assembly

The values for T, Fax, pW and pN apply to Locking Assemblies installed in oiled condition.

Surface finishes

For shafts and hub bores Ra ≤ 1,6 μm

Tolerances

We recommend the following mounting tolerances

Shaft: h8; Hub: H8

Change of screw tightening torques

A reduction of the contact pressures and the transmission values by reducing the tightening torque of the screws is possible. the admissible lower limit results from the multiplication of the TA values of the above table by 0,8. There is an approximate linear relationship between T, TA , Fax, pW and pN.

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