KOYO BEARING
Boundary dimensions
d                           D                       T                     B                     C              r        r1    mm         1/25.4           mm       1/25.4         mm     1/25.4       mm     1/25.4        mm     1/25.4     min.   min. |
Bearing No. 1) |
De-   sign | Basic load ratings
(kN) Cr              C0r |
Fatigue   load limit
(kN) Cu |
Load
center (mm) a |
da min. |
db    max. |
Mounting dimensions
(mm) Da                       Db           Sa max.      min.       min.     min. |
Sb    min. |
ra     max. |
rb     max. |
Con-
stant e |
Axial load factors
Y1Â Â Â Â Â Â Â Â Â Â Â Â Y0 |
(Refer.)
Mass (kg) |
|||||||||||||||||
257.175 | 10.1250
10.1250 |
342.900Â 358.775 | 13.5000
14.1250 |
57.150Â 71.438 | 2.2500
2.8125 |
57.150Â 2.2500 76.200Â 3.0000 | 44.450Â 1.7500 53.975Â 2.1250 | 6.4
1.6 |
3.2
3.2 |
M349549/M349510
M249747/M249710 |
1
1 |
764
968 |
1
1 |
280
590 |
135
166 |
60.1Â 64.4 | 276
267 |
276
279 |
330
346 |
320
330 |
330
342 |
6
8 |
12.7
17.5 |
6.4Â 1.6 | 3.2Â 3.2 | 0.35
0.33 |
1.73Â 1.80 | 0.95
0.99 |
13.3
21 |
||
258.763 | 10.1875 | 400.050 | 15.7500 | 69.850 | 2.7500 | 67.470Â 2.6563 | 46.038Â 1.8125 | 9.5 | 6.4 | EE221018/221575 | 1 | 953 | 1 | 280 | 137 | 71.2 | 284 | 295 | 381 | 359 | 371 | 6 | 23.8 | 9.5 | 6.4 | 0.39 | 1.52 | 0.84 | 26.7 | ||
260 | —
— |
360
400 |
63.5
87 |
63.5       —
87          — |
48           —    65          — | 3
5 |
2.5
4 |
32952JR
32052JR |
1
1 |
1 |
926
470 |
1
2 |
550
170 |
163
221 |
69.6Â 85.0 | 274
282 |
279
287 |
348
382 |
328
352 |
347
383 |
11
14 |
15.5Â 22 | 2.5Â 4 | 2
3 |
0.41
0.43 |
1.48Â 1.38 | 0.81
0.76 |
18.9
39.5 |
|||
260.350 | 10.2500Â 10.2500
10.2500 |
365.125Â 419.100Â 422.275 | 14.3750Â 16.5000
16.6250 |
58.738Â 85.725Â 86.121 | 2.3125Â 3.3750
3.3906 |
58.738Â 2.3125 84.138Â 3.3125 79.771Â 3.1406 | 42.863Â 1.6875 61.913Â 2.4375 66.675Â 2.6250 | 6.4
6.4 6.7 |
6.4
3.2 3.2 |
EE134102/134143
EE435102/435165 HM252348/HM252310 |
1
1 1 |
1 1 |
708
230 270 |
1
1 1 |
070
760 680 |
116
181 177 |
63.7Â 106.0Â 78.7 | 280
280 280 |
286
296 309 |
346
406 409 |
334
369 384 |
345
394 399 |
8
6 1 |
15.9Â 23.8Â 19.4 | 6.4Â 6.4Â 6.7 | 6.4Â 3.2Â 3.2 | 0.37
0.60 0.33 |
1.60Â 0.99Â 1.80 | 0.88
0.55 0.99 |
17.1
42.3 41.2 |
|
263.525 | 10.3750 | 325.438 | 12.8125 | 28.575 | 1.1250 | 28.575Â 1.1250 | 25.400Â 1.0000 | 1.6 | 1.6 | 38880/38820 | 1 | 272 | 507 | 58.8 | 48.6 | 273 | 281 | 316 | 306 | 312 | 6 | 3.2 | 1.6 | 1.6 | 0.37 | 1.64 | 0.90 | 5.08 | |||
264.975 | 10.4321 | 355.600 | 14.0000 | 57.150 | 2.2500 | 62.000Â 2.4409 | 44.450Â 1.7500 | 3.6 | 3.2 | LM451347/LM451310 | 1 | 757 | 1 | 280 | 134 | 62.3 | 279 | 287 | 343 | 332 | 342 | 8 | 12.7 | 3.6 | 3.2 | 0.36 | 1.67 | 0.92 | 15.3 | ||
266.700 | 10.5000Â 10.5000
10.5000 10.5000 |
325.438Â 355.600Â 393.700
444.500 |
12.8125Â 14.0000
15.5000 17.5000 |
28.575Â 57.150Â 73.817
120.650 |
1.1250Â 2.2500
2.9062 4.7500 |
28.575Â 1.1250 57.150Â 2.2500 69.850Â 2.7500
117.475Â 4.6250 |
25.400Â 1.0000 44.450Â 1.7500 50.005Â 1.9687
88.900Â 3.5000 |
1.6
3.6 6.4 6.4 |
1.6
3.2 6.4 6.4 |
38885/38820
LM451349/LM451310 EE275105/275155 H852849/H852810 |
1
1 1 1 |
1 |
272
757 921 890 |
1 1 2 |
507
280 540 820 |
58.8
134 157 266 |
48.6Â 62.3Â 75.4
121.3 |
276
280 286 286 |
281
287 314 300 |
316
343 374 425 |
306
332 364 390 |
312
342 377 424 |
6
8 5 9 |
3.2Â 12.7
23.8 31.8 |
1.6Â 3.6Â 6.4
6.4 |
1.6Â 3.2Â 6.4
6.4 |
0.37
0.36 0.40 0.58 |
1.64Â 1.67Â 1.49
1.04 |
0.90
0.92 0.82 0.57 |
4.79
14.7 28.3 71.2 |
|
269.875 | 10.6250 | 381.000 | 15.0000 | 74.613 | 2.9375 | 74.613Â 2.9375 | 57.150Â 2.2500 | 6.4 | 3.2 | M252349/M252310 | 1 | 1 | 070 | 1 | 670 | 174 | 69.0 | 289 | 295 | 368 | 350 | 363 | 6 | 17.5 | 6.4 | 3.2 | 0.33 | 1.80 | 0.99 | 24.5 | |
276.225 | 10.8750 | 352.425 | 13.8750 | 36.513 | 1.4375 | 34.925Â 1.3750 | 23.813Â 0.9375 | 3.6 | 3.2 | L853049/L853010 | 1 | 389 | 653 | 75.2 | 71.2 | 290 | 295 | 340 | 329 | 337 | 7 | 12.7 | 3.6 | 3.2 | 0.54 | 1.11 | 0.61 | 7.53 | |||
279.400 | 11.0000
11.0000 |
469.900Â 488.950 | 18.5000
19.2500 |
95.250Â 120.650 | 3.7500
4.7500 |
93.663Â 3.6875 120.650Â 4.7500 | 69.850Â 2.7500 92.075Â 3.6250 | 9.5
1.2 |
3.2
6.4 |
EE722110/722185
EE295110/295193 |
1
1 |
1
2 |
540
100 |
2
2 |
190
790 |
219
276 |
87.2Â 92.7 | 305
288 |
332
328 |
457
470 |
412
427 |
430
446 |
7
8 |
25.4Â 28.6 | 9.5Â 1.2 | 3.2Â 6.4 | 0.38
0.31 |
1.59Â 1.94 | 0.88
1.07 |
60.7
85.5 |
|
280 | —
— |
380
420 |
63.5
87 |
63.5       —
87          — |
48           —    65          — | 3
5 |
2.5
4 |
32956JR
32056JR |
1
1 |
1 |
949
510 |
1
2 |
630
280 |
168
230 |
75.1Â 91.1 | 294
302 |
298
305 |
368
402 |
347
370 |
368
402 |
11
14 |
15.5Â 22 | 2.5Â 4 | 2
3 |
0.43
0.46 |
1.39Â 1.31 | 0.76
0.72 |
20.1
41.7 |
|||
285.750 | 11.2500 | 358.775 | 14.1250 | 33.338 | 1.3125 | 31.750Â 1.2500 | 22.225Â 0.8750 | 3.6 | 3.2 | 545112/545141 | 1 | 301 | 537 | 60.9 | 65.8 | 299 | 308 | 346 | 337 | 344 | 6 | 11.1 | 3.6 | 3.2 | 0.49 | 1.23 | 0.68 | 6.75 |
CMTG BEARING CO.,LIMITED.  has been engaged in bearing industry for many years, we provide a wide selections of brands, including FAG bearing, SKF bearing,NSK bearing,Nachi bearing, TIMKEN bearing, THK Linear Guide and Linear Block …ect.
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