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2<br />
C<br />
A<br />
SUPER PRECISION<br />
MEDIUM<br />
2(3)MM300WI<br />
ISO 03 SERIES<br />
DUPLEX<br />
PERFORMANCE DATA<br />
MOUNTING ARRANGEMENTS<br />
Back-to-Back<br />
DB<br />
Tandem<br />
DT<br />
Face-to-Face<br />
DF<br />
(1) For DB or DF arrangements<br />
only. For other mounting<br />
arrangements, contact your<br />
<strong>Timken</strong> representative.<br />
Bearing<br />
Number<br />
DUX<br />
X-light<br />
DUL<br />
Light<br />
Preload Axial Stiffness (1) Radial Stiffness (1) Spacer Offsets (1)<br />
N<br />
lbs.<br />
DUM<br />
Med.<br />
DUH<br />
Heavy X-light Light Med. Heavy X-light Light Med. Heavy<br />
N/μm<br />
10 6 lbs./in.<br />
N/μm<br />
10 6 lbs./in.<br />
2MM301WI — 20 70 180 — 17.49 27.81 44.25 — 98.82 153.56 183.30 — 7.87 12.45<br />
— 5 15 40 — 0.100 0.159 0.253 — 0.565 0.878 1.048 — 0.00031 0.00049<br />
2MM302WI 20 40 110 220 — 27.46 40.93 57.19 109.97 143.24 164.93 205.51 3.70 7.87 9.14<br />
5 10 25 50 — 0.157 0.234 0.327 0.628 0.819 0.943 1.175 0.00015 0.00031 0.00036<br />
2MM303WI 40 70 160 310 — 26.58 38.83 54.57 127.92 147.44 197.46 263.05 3.63 10.92 13.46<br />
10 15 35 70 — 0.152 0.222 0.312 0.730 0.843 1.129 1.504 0.00014 0.00043 0.00053<br />
2MM304WI 40 90 220 400 — 33.06 49.85 66.46 140.53 181.72 232.97 289.81 6.14 12.95 12.92<br />
10 20 50 90 — 0.189 0.285 0.380 0.803 1.039 1.332 1.657 0.00024 0.00051 0.00051<br />
2MM305WI 90 160 330 620 — 46.17 65.24 88.50 203.85 247.83 318.78 387.86 6.42 12.70 14.99<br />
20 35 75 140 — 0.264 0.373 0.506 1.164 1.417 1.820 2.215 0.00025 0.00050 0.00059<br />
2MM306WI 90 180 440 780 — 49.50 74.68 98.47 223.77 271.27 394.56 470.83 7.73 17.27 15.49<br />
20 40 100 175 — 0.283 0.427 0.563 1.278 1.551 2.253 2.689 0.00030 0.00068 0.00061<br />
2MM307WI 110 220 560 1000 — 55.97 85.18 114.38 251.87 323.91 438.09 526.52 9.05 18.80 17.78<br />
25 50 125 225 — 0.320 0.487 0.654 1.438 1.852 2.502 3.007 0.00036 0.00074 0.00070<br />
2MM308WI 130 290 670 1220 — 64.71 94.62 127.85 290.33 364.67 512.52 620.41 10.56 19.05 20.07<br />
30 65 150 275 — 0.370 0.541 0.731 1.658 2.085 2.927 3.543 0.00042 0.00075 0.00079<br />
2MM309WI 180 330 780 1560 — 70.13 103.02 145.17 313.69 393.18 520.48 646.82 10.00 20.57 25.15<br />
40 75 175 350 — 0.401 0.589 0.830 1.791 2.248 2.972 3.694 0.00039 0.00081 0.00099<br />
2MM310WI 220 440 1000 1780 — 81.15 117.36 156.01 347.72 445.06 580.34 694.99 12.52 22.35 22.86<br />
50 100 225 400 — 0.464 0.671 0.892 1.986 2.541 3.314 3.969 0.00049 0.00088 0.00090<br />
2MM311WI 270 560 1110 2110 — 88.15 121.38 167.20 383.15 496.30 622.37 761.00 15.05 21.34 27.69<br />
60 125 250 475 — 0.504 0.694 0.956 2.188 2.834 3.554 4.346 0.00059 0.00084 0.00109<br />
2MM312WI 270 560 1330 2450 — 89.72 133.80 180.85 387.61 506.89 675.70 816.95 14.75 27.94 28.19<br />
60 125 300 550 — 0.513 0.765 1.034 2.213 2.895 3.859 4.665 0.00058 0.00110 0.00111<br />
2MM313WI 330 670 1670 3000 — 104.24 157.93 211.28 453.84 585.60 791.90 952.23 14.55 30.48 28.96<br />
75 150 375 675 — 0.596 0.903 1.208 2.592 3.344 4.522 5.438 0.00057 0.00120 0.00114<br />
2MM314WI 400 780 1890 3450 — 110.89 166.33 224.22 498.33 633.95 848.58 1024.31 15.49 32.26 32.00<br />
90 175 425 775 — 0.634 0.951 1.282 2.846 3.620 4.846 5.849 0.00061 0.00127 0.00126<br />
2MM319WI 670 1330 3110 6230 — 140.44 206.03 290.33 611.00 787.43 1041.02 1293.71 21.67 41.05 50.24<br />
150 300 700 1400 — 0.803 1.178 1.660 3.489 4.497 5.945 7.388 0.00085 0.00162 0.00198<br />
3MM301WI 40 90 180 310 — 58.59 76.61 96.37 96.32 122.54 153.78 183.56 3.42 5.33 6.10<br />
10 20 40 70 — 0.335 0.438 0.551 0.550 0.700 0.878 1.048 0.00013 0.00021 0.00024<br />
3MM302WI 40 90 180 360 — 66.46 86.75 115.08 108.95 139.15 174.90 217.90 2.99 4.57 7.11<br />
10 20 40 80 — 0.380 0.496 0.658 0.622 0.795 0.999 1.244 0.00012 0.00018 0.00028<br />
3MM303WI 40 110 270 440 — 63.66 89.02 109.49 93.69 132.92 176.19 207.22 4.85 8.13 7.11<br />
10 25 60 100 — 0.364 0.509 0.626 0.535 0.760 1.006 1.183 0.00019 0.00032 0.00028<br />
3MM304WI 90 160 360 620 — 79.23 108.96 136.77 136.71 159.51 220.02 261.18 3.70 8.38 8.64<br />
20 35 80 140 — 0.453 0.623 0.782 0.781 0.912 1.258 1.491 0.00015 0.00033 0.00034<br />
3MM305WI 110 220 530 890 — 101.62 142.19 174.90 165.18 212.03 283.21 333.10 4.90 10.16 8.89<br />
25 50 120 200 — 0.581 0.813 1.000 0.943 1.211 1.617 1.902 0.00019 0.00040 0.00035<br />
3MM306WI 135 270 670 1110 — 112.29 159.33 196.06 193.95 252.07 342.44 403.21 4.99 11.68 9.91<br />
30 60 150 250 — 0.642 0.911 1.121 1.108 1.439 1.955 2.303 0.00020 0.00046 0.00039<br />
3MM307WI 180 360 850 1560 — 134.85 187.84 241.01 221.46 284.26 378.37 459.17 5.93 12.19 13.21<br />
40 80 190 350 — 0.771 1.074 1.378 1.265 1.623 2.161 2.622 0.00023 0.00048 0.00052<br />
3MM308WI 220 440 1110 1780 — 150.41 214.08 259.20 261.11 336.84 456.64 530.40 6.22 14.48 11.18<br />
50 100 250 400 — 0.860 1.224 1.482 1.491 1.923 2.608 3.029 0.00025 0.00057 0.00044<br />
3MM309WI 270 530 1330 2220 — 165.98 235.94 290.51 269.80 332.14 468.66 551.00 7.20 15.75 13.46<br />
60 120 300 500 — 0.949 1.349 1.661 1.541 1.899 2.676 3.146 0.00028 0.00062 0.00053<br />
3MM310WI 310 620 1560 2670 — 178.75 254.13 316.57 293.47 360.12 510.36 605.40 7.83 17.27 15.49<br />
70 140 350 600 — 1.022 1.453 1.810 1.676 2.059 2.914 3.457 0.00031 0.00068 0.00061<br />
3MM311WI 400 780 1780 3110 — 198.16 272.32 342.10 328.74 407.34 547.14 653.40 8.51 17.02 17.27<br />
90 175 400 700 — 1.133 1.557 1.956 1.877 2.329 3.124 3.731 0.00034 0.00067 0.00068<br />
3MM312WI 450 890 2000 3560 — 213.38 291.21 367.81 347.62 450.02 582.53 699.31 9.35 17.53 18.80<br />
100 200 450 800 — 1.220 1.665 2.103 1.985 2.573 3.326 3.993 0.00037 0.00069 0.00074<br />
3MM313WI 560 1110 2670 4450 — 249.23 348.93 429.55 409.70 525.26 701.21 824.51 10.03 20.83 18.29<br />
125 250 600 1000 — 1.425 1.995 2.456 2.340 2.999 4.004 4.708 0.00039 0.00082 0.00072<br />
3MM314WI 620 1220 2890 5120 — 262.52 365.02 460.34 433.61 552.97 735.10 881.07 10.22 21.08 21.59<br />
140 275 650 1150 — 1.501 2.087 2.632 2.476 3.158 4.198 5.031 0.00040 0.00083 0.00085<br />
3MM319WI 1070 2110 4890 8900 — 328.81 453.52 578.22 541.62 692.64 914.62 1105.79 14.24 28.19 30.99<br />
240 475 1100 2000 — 1.880 2.593 3.306 3.093 3.955 5.223 6.315 0.00056 0.00111 0.00122<br />
X-light<br />
to<br />
Light<br />
Light to<br />
Med.<br />
μm<br />
in.<br />
Med. to<br />
Heavy<br />
196 TIMKEN MACHINE TOOL CATALOG
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