Locking Assemblies RfN 7515 | RINGFEDER®

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.

ℹ This series is also available in true inch sizes.

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Technical Data & CAD Models

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CAD
d
mm
D
mm
L
mm
L1
mm
L3
mm
T
Nm
pW
N/mm2
pN
N/mm2
TA
Nm
DN min bei Rp0,2 300 N/mm2
mm
DN min bei Rp0,2 400 N/mm2
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 173 133 355 375 350
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
360 455 177 155 140 487557 174 137 930 604 562
380 475 177 155 140 514644 164 132 930 623 581
400 495 177 155 140 595903 172 139 930 659 612
420 515 177 155 140 682580 179 146 930 696 644
440 535 177 155 140 715084 170 140 930 715 663
460 555 177 155 140 747588 163 135 930 733 683
480 575 177 155 140 812595 163 136 930 761 708
500 595 177 155 140 846453 156 131 930 779 727
520 615 177 155 140 985949 168 142 930 825 765
540 635 177 155 140 1023870 162 138 930 844 784
560 655 177 155 140 1137633 167 143 930 880 816
580 675 177 155 140 1178263 162 139 930 899 835
600 695 177 155 140 1218893 156 135 930 917 854
620 715 177 155 140 1259522 151 131 930 936 874
640 735 177 155 140 1300152 146 128 930 955 893
CAD d
inch 		D
inch 		L
inch 		L1
inch 		L3
inch 		T
ft-lbs 		Fax
lbs 		pW
psi 		pN
psi 		nSc
pcs. 		Schrauben-Norm
 		DG
mm 		TA
ft-lbs 		Gw
lbs
  2 3/4 4.331 2.756 2.362 1.969 5400 46600 28600 18200 8 ISO 4762 10 61 6.0
  2 7/8 4.528 2.756 2.362 1.969 6100 50400 29500 19900 9 ISO 4762 10 61 6.0
  2 15/16 4.528 2.756 2.362 1.969 6500 52200 29900 19900 9 ISO 4762 10 61 6.0
  3 4.724 2.756 2.362 1.969 6800 54000 30400 20900 10 ISO 4762 10 61 6.0
  3 1/8 4.724 2.756 2.362 1.969 7600 57800 31200 20900 10 ISO 4762 10 61 6.0
  3 1/4 4.724 2.756 2.362 1.969 8200 60100 31200 20900 10 ISO 4762 10 61 6.2
  3 7/16 5.118 2.756 2.362 1.969 9100 62800 30800 21200 11 ISO 4762 10 61 6.4
  3 1/2 5.118 2.756 2.362 1.969 9300 63700 30800 21200 11 ISO 4762 10 61 6.4
  3 15/16 5.709 3.228 2.756 2.362 14000 85000 30400 20900 10 ISO 4762 12 107 9.5
  4 5.709 3.228 2.756 2.362 14200 85000 29900 20900 10 ISO 4762 12 107 9.7
  4 3/8 6.102 3.228 2.756 2.362 15700 85900 27600 19600 10 ISO 4762 12 107 10.4
  4 7/16 6.496 3.228 2.756 2.362 16200 87300 27600 20200 11 ISO 4762 12 107 10.6
  4 1/2 6.496 3.228 2.756 2.362 16700 88600 27600 20200 11 ISO 4762 12 107 10.6
  4 3/4 6.496 3.228 2.756 2.362 18900 94900 27900 20200 11 ISO 4762 12 107 11.2
  4 15/16 7.087 3.583 3.110 2.559 22200 107300 29100 21800 14 ISO 4762 12 107 13.0
  5 7.087 3.583 3.110 2.559 23300 111300 29300 21800 14 ISO 4762 12 107 13.2
  5 7/16 7.480 3.583 3.110 2.559 28600 125700 29900 22100 15 ISO 4762 12 107 15.2
  5 1/2 7.480 3.583 3.110 2.559 29200 127100 29900 22100 15 ISO 4762 12 107 15.4
  5 15/16 7.874 3.583 3.110 2.559 31700 128000 28000 20900 15 ISO 4762 12 107 15.9
  6 8.268 3.583 3.110 2.559 32400 129300 28000 21400 16 ISO 4762 12 107 16.1
  6 7/16 8.858 4.173 3.622 3.071 40200 149300 28200 21400 15 ISO 4762 14 170 19.8
  6 1/2 8.858 4.173 3.622 3.071 42300 155400 28200 21400 15 ISO 4762 14 170 20.9
  6 15/16 9.252 4.173 3.622 3.071 50400 174100 27500 20500 15 ISO 4762 14 170 25.1
  7 9.252 4.173 3.622 3.071 50800 174100 27200 20500 15 ISO 4762 14 170 25.4
  7 1/4 9.843 4.567 4.016 3.465 54100 179000 25700 18200 16 ISO 4762 14 170 28.4
  7 7/16 9.843 4.567 4.016 3.465 57200 184400 24300 18200 16 ISO 4762 14 170 32.0
  7 1/2 9.843 4.567 4.016 3.465 58400 186900 24100 18200 16 ISO 4762 14 170 32.6
  7 15/16 10.236 4.567 4.016 3.465 70000 211400 25600 19600 18 ISO 4762 14 170 34.8

Images & Drawings

Dimensions Dimensions
Location Location
Conveyor pulleys Conveyor pulleys

Product 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.

RINGFEDER® Locking Assemblies – How to Use Them?

Learn more about application and functionality of our premium-quality, high-performance RINGFEDER® Locking Assemblies in our short video.

More Videos
RINGFEDER® Locking Assemblies – How to Use Them?

Downloads
Product Paper RINGFEDER® Locking Assemblies

Product Paper RINGFEDER® Locking Assemblies

EN English DE German
Tech Paper Locking Assemblies RINGFEDER® RfN 7515

Tech Paper Locking Assemblies RINGFEDER® RfN 7515

EN English DE German US English (Inch)
Instruction Manual Locking Assemblies RINGFEDER® RfN 7515

Instruction Manual Locking Assemblies RINGFEDER® RfN 7515

DE German EN English

Further downloads including certificates, instruction manuals and product images are available to you in our Download Center:

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Suitable Industry Solutions

Construction
Food & Beverage
Machine Tools
Medical
Packaging
Special Machines
Cement
Chemical
Steel
Material Handling
Pulp & Paper
Refining
Thermal Power Stations
Hydro Power Stations
Solar Energy
Mining
Oil & Gas
Timber

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