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RINGFEDER® Locking Elements

RfN 8006

RINGFEDER® Locking Element RfN 8006 · Typical installation

Solid

L I

RINGFEDER® Locking Elements RfN 8006 · Dimensions

Slit

V-belt pulley

38

D

d

Locking Assembly dimensions

Transmissible torques or axial forces I 0.146 0.146 0.146 0.146 0.146 0.146 0.146 0.146 0.209 0.209 0.209 0.209 0.209 0.209 0.209 0.209 0.209 0.209 0.209 0.209 0.209 0.236 0.236 0.236 0.260 0.260 0.339 0.339 0.339 0.339 0.409 0.409 0.409 0.409 0.480 0.480 0.480 0.591 0.591 0.591 0.591 0.736 0.736 0.736 0.996 0.996 0.996 0.996 1.181 1.181 1.181 1.370 1.370 1.370 1.555 1.555 1.732 At 0.107 0.124 0.140 0.163 0.180 0.198 0.215 0.234 0.361 0.388 0.412 0.439 0.465 0.490 0.516 0.567 0.620 0.645 0.722 0.773 0.826 1.021 1.051 1.110 1.285 1.349 1.883 2.009 2.093 2.302 2.835 3.036 3.188 3.291 4.157 4.216 4.453 5.840 6.206 6.570 6.936 9.102 10.011 10.921 16.008 17.239 18.470 19.702 24.822 26.282 27.742 33.874 35.568 37.262 44.217 46.139 53.785 Fo psi ­ ­ ­ 1709 1563 1686 1551 1439 2518 2406 2271 2136 2046 2833 2698 2023 1866 2226 1664 1911 1754 2271 2608 2473 3103 3507 5868 5531 5283 4901 6610 6160 5913 5710 6969 6969 7779 10791 10252 9757 9263 13647 14838 13534 21628 20009 18997 17648 26416 25000 23606 30126 28552 27428 37095 35409 42716 F A` 832 989 1124 1281 1416 1551 1686 1844 2833 3035 3237 3440 3642 3844 4047 4451 4856 5058 5665 6070 6475 8004 8228 8701 10117 10567 14838 15737 16412 17986 22257 23831 24955 25854 32599 33049 34847 45638 48561 51484 54406 71268 78462 85432 125450 134892 144559 154227 194469 205935 217176 265288 278552 291817 346223 361960 420414 T lb-ft 1.8 2.5 3.2 4.2 5.2 5.9 7.4 8.9 14.8 17.0 19.2 21.4 24 27 30 35 43 46 58 66 75 102 108 120 147 162 242 275 299 361 454 520 575 612 826 856 952 1335 1505 1689 1881 2596 3135 3725 5938 6897 7893 8999 12023 13499 15048 19326 21318 23383 29063 31718 38357 F ax lbs 187 218 247 286 315 337 375 407 629 674 717 764 809 852 899 989 1079 1124 1259 1349 1439 1776 1844 1933 2237 2338 3282 3507 3642 4002 4946 5283 5576 5755 7194 7329 7734 10117 10791 11466 12140 15737 17311 18885 27878 30126 32149 34285 43165 45863 48112 58903 61826 64748 76888 80486 93300 0.079 0.079 0.079 0.079 0.079 0.079 0.079 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.197 0.197 0.197 0.197 0.236 0.236 0.236 0.236 0.236 0.236 0.236 0.236 0.276 X Inch 0.079 0.118 0.079 0.079 0.079 0.079 0.079 0.079 0.079 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.236 0.236 0.236 0.276 0.276 0.276 0.276 0.315 0.315 0.315 0.315 0.315 0.315 0.354 0.354 0.394 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.157 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.236 0.236 0.236 0.236 0.236 0.236 0.236 0.276 0.276 0.276 0.354 0.354 0.354 0.354 0.394 0.394 0.394 0.433 0.433 0.433 0.472 0.472 0.512 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.197 0.236 0.236 0.236 0.236 0.236 0.236 0.276 0.276 0.276 0.276 0.276 0.276 0.276 0.315 0.315 0.315 0.315 0.354 0.354 0.354 0.433 0.433 0.433 0.433 0.472 0.472 0.472 0.512 0.512 0.512 0.551 0.551 0.630

Weight

dxD mm *6 x 9 *7 *8 9 10 11 12 13 14 15 16 17 18 19 20 22 24 25 28 30 32 35 36 38 40 42 45 48 50 55 56 60 63 65 70 71 75 80 85 90 95 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 10 11 12 13 14 15 16 18 19 20 21 22 24 25 26 28 30 32 35 36 40 42 44 45 48 52 55 57 62 64 68 71 73 79 80 84 91 96 101 106 114 124 134 148 158 168 178 191 201 211 224 234 244 257 267 280

d 0.236 0.276 0.315 0.354 0.394 0.433 0.472 0.512 0.551 0.591 0.630 0.669 0.709 0.748 0.787 0.866 0.945 0.984 1.102 1.181 1.260 1.378 1.417 1.496 1.575 1.654 1.772 1.890 1.969 2.165 2.205 2.362 2.480 2.559 2.756 2.795 2.953 3.150 3.346 3.543 3.740 3.937 4.331 4.724 5.118 5.512 5.906 6.299 6.693 7.087 7.480 7.874 8.268 8.661 9.055 9.449 9.843

C1

Cb

D

C2

L 0.177 0.177 0.177 0.177 0.177 0.177 0.177 0.177 0.248 0.248 0.248 0.248 0.248 0.248 0.248 0.248 0.248 0.248 0.248 0.248 0.248 0.276 0.276 0.276 0.315 0.315 0.394 0.394 0.394 0.394 0.472 0.472 0.472 0.472 0.551 0.551 0.551 0.669 0.669 0.669 0.669 0.827 0.827 0.827 1.102 1.102 1.102 1.102 1.299 1.299 1.299 1.496 1.496 1.496 1.693 1.693 1.890

WT lbs 10 -3 3.3 3.1 3.3 3.7 4.0 4.4 4.9 5.1 10.8 11.7 12.1 12.8 13.5 17.2 18.1 15.9 17.4 22.1 19.8 26.5 22.1 44.1 44.1 44.1 44.1 66 110 110 110 110 154 154 176 176 243 243 265 265 441 441 485 882 882 1103 1874 2007 2139 2249 3308 3528 3749 5072 5513 5513 7497 7718 10364

d1

D1

T max lb-ft 5.8 7.6 9.7 6.4 8.9 10.8 13.8 17.2 25 30 36 42 48 67 76 73 90 126 126 186 164 250 324 363 316 428 553 638 699 859 1007 1170 1299 1389 1816 1869 2067 2882 3277 3696 4141 5866 7060 8472 12794 14930 17199 19648 25739 28951 32352 41035 45348 49751 61131 66689 80543

-0 0.433 +0.0006 0.472 0.512 +0 -0.0004 0.551 0.591 0.630

Inch 0.354 -0 0.394 +0.0006

Inch 0.240 0.350 0.280 0.319 0.358 0.398 0.437 0.476 0.516 0.555 0.594 0.634 0.673 0.713 0.756 0.795 0.874 0.953 0.992 1.110 1.189 1.268 1.386 1.425 1.504 1.583 1.661 1.780 1.898 1.976 2.173 2.213 2.370 2.488 2.567 2.768 2.807 2.965 3.161 3.358 3.555 3.752 3.949 4.343 4.736 5.134 5.528 5.921 6.315 6.713 7.106 7.500 7.898 8.291 8.685 9.079 9.472 9.874 0.390 0.429 0.469 0.508 0.547 0.587 0.626 0.705 0.744 0.783 0.823 0.862 0.937 0.976 1.016 1.094 1.173 1.252 1.370 1.409 1.567 1.646 1.724 1.764 1.882 2.039 2.157 2.236 2.433 2.512 2.669 2.787 2.866 3.098 3.138 3.295 3.571 3.768 3.965 4.161 4.476 4.870 5.264 5.811 6.205 6.598 6.992 7.500 7.894 8.287 8.795 9.189 9.583 10.094 10.488 10.992

-0 +0.0007

0.709 -0 +0.0007 0.748 0.787 0.827 0.866 0.945 0.984 1.024 +0 -0 -0.0005 +0.0008 1.102 1.181 1.260 1.378 1.417 1.575 -0 1.654 +0.001 -0 +0.0008

1.732 +0 -0 -0.0006 +0.001 1.772 1.890 2.047 2.165 2.244 2.441 2.520 2.795 -0 2.677 +0.0018 +0 -0 2.874 -0.0018 +0.0018 3.110 3.150 3.307 3.583 3.780 -0 3.976 +0.0022 4.173 +0 -0 -0.0022 +0.0022 4.488 4.882 5.276 5.827 -0 6.220 +0.0025

6.614 +0 -0 -0.0025 +0.0025 7.008 7.520 7.913 8.307 -0 8.819 +0.0028 9.213

+0 -0 9.606 -0.0028 +0.0028 10.118 10.512 11.024

-0 +0.0032

* Slit only. For slit Locking Elements FO is eliminated in the calculation.

To continue see next page

39

RfN 8006

RINGFEDER® Locking Elements

RfN 8006

Locking screw calculation Locking screw table

The torque transmission capacity of a RINGFEDER® Locking Element connection is directly proportional to the effective clamping force FA. As clamping elements normally locking screws are used which act on the Locking Elements via a thrust flange. Regular thread 1) , metric

8.8

dG TA FV TA

10.9

FV TA

12.9

FV

M 4 M 5 M 6

2.9 6.0 10 25 49 86 135 210 290 410 550 710 1050 1450

3 900 6 350 9 000 16 500 26 200 38 300 52 500 73 000 88 000 114 000 141 000 164 000 215 000 262 000

4.1 8.5 14 35 69 120 190 295 405 580 780 1000 1500 2000

5 450 8 950 12 600 23 200 36 900 54 000 74 000 102 000 124 000 160 000 199 000 230 000 302 000 368 000

4.9 10 17 41 83 145 230 355 485 690 930 1200 1800 2400

6 550 10 700 15 100 27 900 44 300 64 500 88 500 123 000 148 000 192 000 239 000 276 000 363 000 442 000

Solid

M 8 M 10 M 12 M 14 M 16 M 18 M 20 M 22 M 24 M 27 M 30

1 Nm = 0.738 lb-ft 1 N = 0.225 lb

Regular thread , Inch

BOLT SIZE Inch BOLT DIA. Inch FV lbs TA lb-in BOLT SIZE Inch BOLT DIA. Inch FV lbs TA lb-ft

Slit

4-40 4-48 6-32 6-40 8-32 8-36 10-24 10-32

0.112 0.112 0.138 0.138 0.164 0.164 0.19 0.19

540 600 820 920 1260 1320 1580 1800

12 13 23 25 41 43 60 68

1/4"-20 1/4"-28 5/16"-18 5/16"-24 3/8"-16 3/8"-24 7/16"-14 7/16"-20 1/2"-13 1/2"-20

0.25 0.25 0.3125 0.3125 0.375 0.375 0.4375 0.4375 0.5 0.5 0.5625 0.5625

2850 3250 4700 5200 6950 7900 9600 10700 12800 14400 16400 18300

12 14 25 25 45 50 70 80 110 120 150 170

1) TA = tightening torque (Nm) FV = initial clamping force (N) (screws oiled, µtotal = 0.14)

9/16"-12 9/16"-18

40

Locking Assembly dimensions

Transmissible torques or axial forces I 1.732 1.732 1.929 1.929 1.929 2.323 2.323 2.323 2.323 2.323 2.323 2.323 At 55.955 58.125 66.805 69.130 71.610 91.915 97.650 103.385 109.120 115.010 120.590 126.325 F A` psi 40917 438399 39793 46313 49910 48112 65647 61151 58004 60477 57554 54856 52608 456385 523831 541817 559802 719424 764388 809353 854317 899281 944245 989209 Fo T lb-ft 41676 44996 53479 57167 61224 84090 94786 106219 118390 131299 144576 158592 F ax lbs 97797 101169 116906 120279 124775 159622 169739 179856 189973 200090 210207 220324 0.276 0.276 0.276 0.276 0.276 0.394 0.394 0.394 0.394 0.394 0.394 0.394 X Inch 0.394 0.512 0.394 0.433 0.433 0.433 0.591 0.591 0.591 0.591 0.591 0.591 0.591 0.512 0.551 0.551 0.551 0.787 0.787 0.787 0.787 0.787 0.787 0.787 0.630 0.630 0.669 0.669 0.669 0.984 0.984 0.984 0.984 0.984 0.984 0.984

Weight

dxD mm 260 x 290 270 x 300 280 x 313 290 x 323 300 x 333 320 x 360 340 x 380 360 x 400 380 x 420 400 x 440 420 x 460 440 x 480

d 10.236 10.630 11.024

C1

Cb

D

C2

L 1.890 1.890 2.087 2.087 2.087 2.559 2.559 2.559 2.559 2.559 2.559 2.559

WT lbs 10 -3 10584 10805 13892 14333 14774 24035 25358 26901 28224 29768 31091 32414

d1

D1

T max lb-ft 87249 94157 111663 119337 127854 177231 200420 224858 249923 277097 305640 335509

-0 11.811 +0.0032 +0 -0 12.323 -0.0032 +0.0032 11.417 12.717 11.811 12.598 13.386 14.173 15.748 13.110 14.173 14.961 -0 +0.0035

Inch 11.417

Inch 10.268 11.386 10.661 11.055 11.449 11.843 12.638 13.425 14.213 15.000 15.787 16.575 17.362 11.780 12.291 12.685 13.079 14.134 14.921 15.709 16.496 17.283 18.071 18.858

+0 -0 15.748 -0.0035 +0.0035 14.961 16.535

16.535

17.323 -0 18.110 +0.0038 +0 -0 17.323 -0.0038 +0.0038 18.898

More sizes on request

Mounting of Locking Element The values for T, Fax, PW and PN apply to Locking Elements installed in oiled condition. Surface finishes For shafts and hub bores Ra 63 RMS Required screw tension force for Locking Elements solid: for Locking Elements slit:

Undercut, clearence cut The relatively narrow RINGFEDER® RfN 8006 Locking Elements mainly serve the purpose of transmitting large torques and axial forces. They are not self-centering. The concentricity accuracy of the clamped hub therefore depends on the centering and care with which installation is carried out. Locking Elements RfN 8006 can center themselves within the framework of their production accuracy if they are absolutely planeparallel when pressed together.

FA = FA´ + F0 FA = FA´

Where n-Locking Elements are used one behind the other (series), the following applies to the increase in T and Fax : Tn = T1 · m and Faxn = Fax1 · m Retaining the values for T and Fax it is possible to reduce FA´ and p where: FA´n = FA´/m and pn = p/m With 2 / 3 / 4 Locking Elements, m = 1.555 / 1.86 / 2.03 For tolerances see table on 39/41. The fits specified have given excellent service in practical operations. Naturally, the shafts and the bores can feature other clearances. Please contact our Technical Department.

1) approx.

values

41

RfN 8006

Explanations to tables

d, D, L, l = Basic dimensions, Locking Elements not tightened C1 Cb C2 At X = shaft tolerances = hub bore tolerances = bore tolerances = effective bearing surface At = · d· l = travel distance for 1,2,3 or 4 Locking Elements. This value includes a safety allowance to ensure that the thrust flange will not contact the face of the hub or shaft. Any reduction of this value could cause a block and the transmission values of the connection would not be achieved. = transmissible torque

T

Fax = axial forces T and Fax refer to a pressure between the Locking Element and shaft of 14500 psi . When solid Locking Elements the required total clamping force FA is obtained by: FA FA´ FO = FA´ + FO = Screw number x Fv, see screw table page 40 = approximate clamping force required to bridge the clearances where the tolerances given in the table are fully exploited during manufacture, not applicable if slit Locking Elements are used. = clamp plate bore = spacer sleeve OD

d1 D1

Tmax = transmissible torque by one Locking Element at a shaft contact pressure of = 47850 psi

37

RINGFEDER® Locking Elements

GSA

Aluminum Alloy*

Hub bolted Clamp Plate (hub axially adjustable)

Shaft bolted Clamp Plate (hub axially fixed)

Explanations

d C1 D C2 L, I R FO FA T = shaft diameter = machining tolerances for shaft (d) = counter bore diameter = machining tolerances for counter bore (D) = width dimensions, relaxed condition = radius in hub bore = preload to bridge specified fit clearances = actual locking force to generate T = transmissible torque for one Locking Element based on coeffi-cientof friction of µ= 0.15 and 10,000 psi contact pressure (torque can be increased by up to 50% = axial load (thrust capacity) = Hub outer diameter = Clamp plate thickness

Fax DN SF

42

Size

GSA dimensions

Transmissible torques or axial forces L 0.126 I 0.094 0.112 0.128 0.143 0.158 0.174 0.187 0.203 0.219 0.234 0.250 0.267 0.284 0.312 0.344 0.376 0.407 0.437 0.469 0.500 0.528 0.528 0.528 0.528 0.528 0.528 0.528 F

°

Weight

d GSA-250 GSA-312 GSA-375 GSA-437 GSA-500 GSA-562 GSA-625 GSA-687 GSA-750 GSA-812 GSA-875 GSA-937 GSA-1000 GSA-1125 GSA-1250 GSA-1375 GSA-1500 GSA-1625 GSA-1750 GSA-1875 GSA-2000 GSA-2250 GSA-2437 GSA-2500 GSA-2687 GSA-2750 GSA-3000 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 1.1250 1.2500 1.3750 1.5000 1.6250 1.7500 1.8750 2.0000 2.2500 2.4375 2.5000 2.6875 2.7500 3.0000

C1

D Inch 0.3750

C2

F A` psi 450 670 920 1196 1512 1872 2237 2670 3145 3637 4188 4790 5437 6620 8105 9750 11510 13390 15475 17675 19910 22400 24260 24885 26750 27370 29860

T lb-in 14 26 43 65 94 132 175 230 295 370 458 561 680 840 1140 1510 1940 2450 3045 3730 4480 5670 6655 7000 8090 8470 10080

F ax lbs 112 166 229 297 376 469 560 669 787 911 1047 1197 1360 1493 1824 2196 2587 3015 3480 3979 4480 5040 5461 5600 6020 6160 6720

WT lbs per 1000 0.76 1.04 1.35 2.20 2.69 3.97 4.69 5.47 6.33 8.56 10.14 12.36 14.05 19.55 23.54 31.22 36.38 46.43 58.53 66.22 81.09 90.30 97.07 99.50 106.26 108.70 117.90

580 686 673 796 944 1259 1231 1414 1413 1617 1611 2087 2090 2220 2240 2745 3030 3295 3585 3595 5365 4795 4430 4330 4035 3950 3890

+0 -0.0005

0.4375 0.5000 0.5937 0.6562 0.7500 0.8125 0.8750 0.9375 1.0312 1.0937 1.1875 1.2500

-0 +0.0005

0.143 0.160 0.176 0.193 0.210 0.226 0.243 0.260 0.276

-0 +0.001

+0 -0.001

-0 +0.0015

0.293 0.310 0.326 0.359 0.393 0.426 0.459 0.492 0.526 0.559 0.592 0.592 0.592 0.592 0.592 0.592 0.592

+0 -0.0015

1.4060 1.5310 1.6870 1.8120 1.9680 2.1250 2.2500 2.4060 2.6560 2.8430 2.9060 3.0930 3.1560 3.4060

+0 -0.002

-0 +0.002

+0 -0.003

-0 +0.003

* Stainless steel available upon request. * Delivery on request; other sizes stocked. Contact Ringfeder Corporation for additional sizes and information.

Selection Guide 1. Determine the shaft diameter to be used and the maximum torque (T) to be transmitted. T= 63,000 (lb-in) x HP RPM 2. Select a locking element from the specification table for the shaft diameter. Verify that the transmissible torque (T) for the element meets the torque requirement. Note: Required peak torque should never exceed specified transmissible torque (T ). Higher torque capacitites can be obtained by increasing the locking force. 3. Determine the required locking force (FA'). A pre-load (FO) is required to bridge the clearance for the specified fits. The total required locking force is FA=FO+ FA'. The locking force is normally obtained by using one or more screws and a clamp plate. 4. Refer to screw tables on page 40 to determine the number, size and grade of screws needed for the required locking force and individual screw clamp load. Clamp load/screw = required locking force (FA) or FA' number of screws (z)

43

GSA

Explanations to tables

d, D, L, l = Basic dimensions, Locking Elements not tightened C1 Cb C2 At X = shaft tolerances = hub bore tolerances = bore tolerances = effective bearing surface At = · d· l = travel distance for 1,2,3 or 4 Locking Elements. This value includes a safety allowance to ensure that the thrust flange will not contact the face of the hub or shaft. Any reduction of this value could cause a block and the transmission values of the connection would not be achieved. = transmissible torque

T

Fax = axial forces T and Fax refer to a pressure between the Locking Element and shaft of 14500 psi . When solid Locking Elements the required total clamping force FA is obtained by: FA FA´ FO = FA´ + FO = Screw number x Fv, see screw table page 40 = approximate clamping force required to bridge the clearances where the tolerances given in the table are fully exploited during manufacture, not applicable if slit Locking Elements are used. = clamp plate bore = spacer sleeve OD

d1 D1

Tmax = transmissible torque by one Locking Element at a shaft contact pressure of = 47850 psi

37

Weitere technische Hinweise befinden sich im jeweiligen Katalog. Alle technischen Daten und Hinweise sind unverbindlich. Rechts ansprüche können daraus nicht abgeleitet werden. Der Anwender ist grundsätzlich verpflichtet zu prüfen, ob die dargestellten Produkte seinen Anforderungen genügen. Änderungen, die dem technischen Fortschritt dienen, behalten wir uns jederzeit vor. Mit Erscheinen dieses Kataloges werden alle älteren Prospekte und Fragebögen zu den gezeigten Produkten ungültig.

Check out the respective catalogue for further technical details All technical details and information is non-binding and cannot be used as a basis for legal claims. The user is obligated to determine whether the represented products meet his requirements. We reserve the right at all times to carry out modifications in the interests of technical progress. Upon the issue of this catalogue all previous brochures and questionnaires on the products displayed are no longer valid.

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