KOYO NEEDLE ROLLER BEARINGS.
Various part numbers in stock, welcome inquiry. Fast shipment within 2-3 working days.
| Shaft
Dia. |
d | D | B | C | Fw |
rs min. |
Bearing
Designation |
Load Ratings | Fatigue
Load Limit Cu |
Speed
Rating Grease |
Approx.
Wt. |
|
| Dynamic | Static | |||||||||||
| C | C0 | |||||||||||
| mm
in |
mm
in |
mm
in |
mm
in |
mm
in |
mm
in |
mm
in |
kN
lbf |
kN | min-1 | kg
lbs |
||
| 10
0.3937 |
10
0.3937 |
22
0.8661 |
14
0.551 |
13
0.512 |
14
0.5512 |
0.3
0.012 |
NA4900ARS | 7.76
1740 |
8.06
1810 |
1.20 | 14000 | 0.027
0.060 |
| 10
0.3937 |
22
0.8661 |
14
0.551 |
13
0.512 |
14
0.5512 |
0.3
0.012 |
NA4900A.2RS | 7.76
1740 |
8.06
1810 |
1.20 | 14000 | 0.027
0.060 |
|
| 12
0.4724 |
12
0.4724 |
24
0.9449 |
14
0.551 |
13
0.512 |
16
0.6299 |
0.3
0.012 |
NA4901ARS | 8.64
1940 |
9.59
2160 |
1.45 | 12000 | 0.031
0.068 |
| 12
0.4724 |
24
0.9449 |
14
0.551 |
13
0.512 |
16
0.6299 |
0.3
0.012 |
NA4901A.2RS | 8.64
1940 |
9.59
2160 |
1.45 | 12000 | 0.031
0.068 |
|
| 15
0.5906 |
15
0.5906 |
28
1.1024 |
14
0.551 |
13
0.512 |
20
0.7874 |
0.3
0.012 |
NA4902ARS | 9.77
2200 |
12.0
2700 |
1.80 | 9700 | 0.041
0.090 |
| 15
0.5906 |
28
1.1024 |
14
0.551 |
13
0.512 |
20
0.7874 |
0.3
0.012 |
NA4902A.2RS | 9.77
2200 |
12.0
2700 |
1.80 | 9700 | 0.041
0.090 |
|
| 17
0.6693 |
17
0.6693 |
30
1.1811 |
14
0.551 |
13
0.512 |
22
0.8661 |
0.3
0.012 |
NA4903ARS | 10.1
2270 |
12.8
2880 |
1.95 | 8800 | 0.044
0.097 |
| 17
0.6693 |
30
1.1811 |
14
0.551 |
13
0.512 |
22
0.8661 |
0.3
0.012 |
NA4903A.2RS | 10.1
2270 |
12.8
2880 |
1.95 | 8800 | 0.044
0.097 |
|
| 20
0.7874 |
20
0.7874 |
37
1.4567 |
18
0.709 |
17
0.669 |
25
0.9843 |
0.3
0.012 |
NA4904ARS | 18.5
4160 |
21.2
4770 |
3.30 | 7800 | 0.087
0.192 |
| 20
0.7874 |
37
1.4567 |
18
0.709 |
17
0.669 |
25
0.9843 |
0.3
0.012 |
NA4904A.2RS | 18.5
4160 |
21.2
4770 |
3.30 | 7800 | 0.087
0.192 |
|
| 25
0.9843 |
25
0.9843 |
42
1.6535 |
18
0.709 |
17
0.669 |
30
1.1811 |
0.3
0.012 |
NA4905ARS | 21.0
4720 |
26.4
5930 |
4.10 | 6500 | 0.106
0.234 |
| 25
0.9843 |
42
1.6535 |
18
0.709 |
17
0.669 |
30
1.1811 |
0.3
0.012 |
NA4905A.2RS | 21.0
4720 |
26.4
5930 |
4.10 | 6500 | 0.106
0.234 |
|
| 30
1.1811 |
30
1.1811 |
47
1.8504 |
18
0.709 |
17
0.669 |
35
1.3780 |
0.3
0.012 |
NA4906ARS | 22.5
5060 |
30.0
6740 |
4.65 | 5500 | 0.119
0.262 |
| 30
1.1811 |
47
1.8504 |
18
0.709 |
17
0.669 |
35
1.3780 |
0.3
0.012 |
NA4906A.2RS | 22.5
5060 |
30.0
6740 |
4.65 | 5500 | 0.119
0.262 |
|
| 35
1.3780 |
35
1.3780 |
55
2.1654 |
21
0.827 |
20
0.787 |
42
1.6535 |
0.6
0.024 |
NA4907ARS | 29.1
6540 |
44.4
9980 |
6.85 | 4600 | 0.198
0.437 |
| 35
1.3780 |
55
2.1654 |
21
0.827 |
20
0.787 |
42
1.6535 |
0.6
0.024 |
NA4907A.2RS | 29.1
6540 |
44.4
9980 |
6.85 | 4600 | 0.198
0.437 |
|
| 40
1.5748 |
40
1.5748 |
62
2.4409 |
23
0.906 |
22
0.866 |
48
1.8898 |
0.6
0.024 |
NA4908ARS | 38.6
8680 |
57.0
12800 |
9.10 | 4000 | 0.263
0.580 |
| 40
1.5748 |
62
2.4409 |
23
0.906 |
22
0.866 |
48
1.8898 |
0.6
0.024 |
NA4908A.2RS | 38.6
8680 |
57.0
12800 |
9.10 | 4000 | 0.263
0.580 |
|
| 45
1.7717 |
45
1.7717 |
68
2.6772 |
23
0.906 |
22
0.866 |
52
2.0472 |
0.6
0.024 |
NA4909ARS | 39.4
8860 |
60.0
13500 |
9.60 | 3700 | 0.303
0.668 |
| 45
1.7717 |
68
2.6772 |
23
0.906 |
22
0.866 |
52
2.0472 |
0.6
0.024 |
NA4909A.2RS | 39.4
8860 |
60.0
13500 |
9.60 | 3700 | 0.303
0.668 |
|
| 50
1.9685 |
50
1.9685 |
72
2.8346 |
23
0.906 |
22
0.866 |
58
2.2835 |
0.6
0.024 |
NA4910ARS | 41.2
9260 |
65.8
14800 |
10.5 | 3300 | 0.309
0.681 |
| 50
1.9685 |
72
2.8346 |
23
0.906 |
22
0.866 |
58
2.2835 |
0.6
0.024 |
NA4910A.2RS | 41.2
9260 |
65.8
14800 |
10.5 | 3300 | 0.309
0.681 |
|
