KOYO NEEDLE ROLLER BEARINGS.
Various part numbers in stock, welcome inquiry. Fast shipment within 2-3 working days.
| Shaft
Dia. |
Fw | D | C |
rs min. |
Bearing Designation | Load Ratings | Fatigue
Load Limit Cu |
Speed Ratings | Approx.
Wt. |
||
| Dynamic | Static | ||||||||||
| C | C0 | Grease | Oil | ||||||||
| mm
in |
mm
in |
mm
in |
mm
in |
mm
in |
kN
lbf |
kN | min-1 | kg
lbs |
|||
| 50
1.9685 |
50
1.9685 |
62
2.4409 |
35
1.378 |
0.6
0.024 |
NK50/35A | 55
12400 |
117
26300 |
18.2 | 5500 | 8500 | 0.242
0.534 |
| 50
1.9685 |
65
2.5591 |
22
0.866 |
1
0.039 |
NKS50A | 45.5
10200 |
71.3
16000 |
11.4 | 5700 | 8700 | 0.170
0.375 |
|
| 52
2.0472 |
52
2.0472 |
68
2.6772 |
22
0.866 |
0.6
0.024 |
RNA4909 | 46.8
10500 |
74.8
16800 |
12.0 | 5400 | 8400 | 0.201
0.443 |
| 52
2.0472 |
68
2.6772 |
40
1.575 |
0.6
0.024 |
RNA6909A | 74.7
16800 |
137
30800 |
21.7 | 5400 | 8400 | 0.392
0.864 |
|
| 55
2.1654 |
55
2.1654 |
68
2.6772 |
25
0.984 |
0.6
0.024 |
NK55/25A | 46.1
10400 |
87.3
19600 |
13.9 | 5000 | 7800 | 0.207
0.456 |
| 55
2.1654 |
68
2.6772 |
35
1.378 |
0.6
0.024 |
NK55/35A | 62.3
14000 |
129
29000 |
20.0 | 5000 | 7800 | 0.293
0.646 |
|
| 55
2.1654 |
72
2.8346 |
22
0.866 |
1
0.039 |
NKS55A | 47.9
10800 |
78.4
17600 |
12.6 | 5100 | 7900 | 0.225
0.496 |
|
| 58
2.2835 |
58
2.2835 |
72
2.8346 |
22
0.866 |
0.6
0.024 |
RNA4910 | 48.9
11000 |
82
18400 |
13.2 | 4800 | 7400 | 0.179
0.395 |
| 58
2.2835 |
72
2.8346 |
40
1.575 |
0.6
0.024 |
RNA6910A | 75.7
17000 |
144
32400 |
22.8 | 4800 | 7400 | 0.364
0.802 |
|
| 60
2.3622 |
60
2.3622 |
72
2.8346 |
25
0.984 |
0.6
0.024 |
NK60/25A | 44.3
9960 |
94
21100 |
14.9 | 4400 | 7000 | 0.202
0.445 |
| 60
2.3622 |
72
2.8346 |
35
1.378 |
0.6
0.024 |
NK60/35A | 59.9
13500 |
139
31200 |
21.5 | 4400 | 7000 | 0.286
0.631 |
|
| 60
2.3622 |
80
3.1496 |
28
1.102 |
1.1
0.043 |
NKS60A | 66.9
15000 |
103
23200 |
16.5 | 4800 | 7300 | 0.337
0.743 |
|
| 63
2.4803 |
63
2.4803 |
80
3.1496 |
25
0.984 |
1
0.039 |
RNA4911 | 62
13900 |
107
24100 |
17.1 | 4500 | 6900 | 0.285
0.628 |
| 63
2.4803 |
80
3.1496 |
45
1.772 |
1
0.039 |
RNA6911A | 94.2
21200 |
172
38700 |
27.8 | 4500 | 6900 | 0.540
1.190 |
|
| 65
2.5591 |
65
2.5591 |
78
3.0709 |
25
0.984 |
0.6
0.024 |
NK65/25A | 48.2
10800 |
97.7
22000 |
15.5 | 4200 | 6500 | 0.257
0.567 |
| 65
2.5591 |
78
3.0709 |
35
1.378 |
0.6
0.024 |
NK65/35A | 65.2
14700 |
144
32400 |
22.4 | 4200 | 6500 | 0.298
0.657 |
|
| 65
2.5591 |
85
3.3465 |
28
1.102 |
1.1
0.043 |
NKS65A | 71
16000 |
114
25600 |
18.3 | 4200 | 6700 | 0.362
0.798 |
|
| 68
2.6772 |
68
2.6772 |
82
3.2283 |
25
0.984 |
0.6
0.024 |
NK68/25A | 49
11000 |
101
22700 |
16.1 | 4000 | 6200 | 0.287
0.633 |
| 68
2.6772 |
82
3.2283 |
35
1.378 |
0.6
0.024 |
NK68/35A | 66.2
14900 |
149
33500 |
23.2 | 4000 | 6200 | 0.350
0.772 |
|
| 68
2.6772 |
85
3.3465 |
25
0.984 |
1
0.039 |
RNA4912 | 64.8
14600 |
116
26100 |
18.6 | 4100 | 6300 | 0.304
0.670 |
|
| 68
2.6772 |
85
3.3465 |
45
1.772 |
1
0.039 |
RNA6912A | 99.3
22300 |
189
42500 |
30.5 | 4100 | 6300 | 0.546
1.204 |
|
| 70
2.7559 |
70
2.7559 |
85
3.3465 |
25
0.984 |
0.6
0.024 |
NK70/25A | 43.6
9800 |
87.9
19800 |
16.6 | 3900 | 6000 | 0.298
0.657 |
