KOYO Cylindrical roller bearings

| d | Boundary dimensions
(mm) |
Ew |
Basic load ratings
(kN) Cr C0r |
Fatigue
load limit (kN) Cu |
Bearing No.
NN NNU Cylindrical Cylindrical bore bore |
De- sign | (Refer.)
Mass (kg) Cylindrical bore |
|||||
| D B | r
min. |
|||||||||||
| 100 | 140
150 |
40
37 |
1.1 1.5 | 113 |
137 |
139
157 |
258
265 |
32.9 33.3 |
NN3020 |
NNU4920
— |
2
1 |
1.95
2.28 |
| 105 | 160 | 41 | 2 | — | 146 | 197 | 322 | 42.5 | NN3021 | 1 | 2.88 | |
| 110 | 150
170 |
40
45 |
1.1 2 | 123 |
155 |
163
221 |
326
361 |
42.4 47.9 |
NN3022 |
NNU4922
— |
2
1 |
2.10
3.65 |
| 120 | 165
180 |
45
46 |
1.1 2 | 134.5
— |
165 |
187
232 |
373
392 |
47.6 51.1 |
NN3024 |
NNU4924
— |
2
1 |
2.90
4.00 |
| 130 | 180
200 |
50
52 |
1.5 2 | 146 |
182 |
216
283 |
428
476 |
50.2 57.7 |
NN3026 |
NNU4926
— |
2
1 |
3.90
5.94 |
| 140 | 190
210 |
50
53 |
1.5 2 | 156 |
192 |
222
297 |
456
516 |
52.5 61.5 |
NN3028 |
NNU4928
— |
2
1 |
4.15
6.41 |
| 150 | 210
225 |
60
56 |
2
2.1 |
168.5
— |
206 |
343
334 |
692
587 |
80.7 70.1 |
NN3030 |
NNU4930
— |
2
1 |
6.50
7.74 |
| 160 | 220
240 |
60
60 |
2
2.1 |
178.5
— |
219 |
340
398 |
695
695 |
79.8 79.6 |
NN3032 |
NNU4932
— |
2
1 |
6.95
9.38 |
| 170 | 230
260 |
60
67 |
2
2.1 |
188.5
— |
236 |
361
471 |
763
824 |
86.4 105 |
NN3034 |
NNU4934
— |
2
1 |
7.20
12.8 |
| 180 | 280 | 74 | 2.1 | — | 255 | 561 | 958 | 118 | NN3036 | 1 | 16.8 | |
| 190 | 260
290 |
69
75 |
2
2.1 |
210 |
265 |
465
598 |
996
1 020 |
119
128 |
NN3038 |
NNU4938
— |
2
1 |
11.0
17.6 |
| 200 | 280
310 340 |
80
82 112 |
2.1 2.1 3 | 223
— — |
282 304 |
509
631 960 |
1 050
1 120 1 640 |
125
137 194 |
NN3040 NN3140 |
NNU4940
— — |
2
1 1 |
15.4
22.5 41.3 |
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