Wearproof Open High Precision Roller Bearing Long Durability Free Sample
What are the applications of Needle Roller Bearings?
Needle bearings are heavily used in automobile components such as rocker arm pivots, pumps, compressors, and transmissions. The drive shaft of a rear-wheel drive vehicle typically has at least eight needle bearings (four in each U joint) and often more if it is particularly long, or operates on steep slopes.
Additional clarification of needle roller bearing: According to "Marks' Standard Handbook for Mechanical Engineers", a needle bearing is a roller bearing with rollers whose length are at least four times their diameter.
| Item | old Item | d | D | B(mm) |
| (mm) | (mm) | |||
| HK0408 | 37941/4 | 4 | 8 | 8 |
| HK0509 | 47941/5 | 5 | 9 | 9 |
| HK0608 | 37941/6 | 6 | 10 | 8 |
| HK0609 | 47941/6 | 6 | 10 | 9 |
| HK0709 | 47941/7 | 7 | 11 | 9 |
| HK0808 | 37941/8 | 8 | 12 | 8 |
| HK0810 | 57941/8 | 8 | 12 | 10 |
| HK0910 | 57941/9 | 9 | 13 | 10 |
| HK0912 | 67941/9 | 9 | 13 | 12 |
| HK1010 | 57941/10 | 10 | 14 | 10 |
| HK1012 | 67941/10 | 10 | 14 | 12 |
| HK1210 | 57941/12 | 12 | 16 | 10 |
| HK1412 | 37941/14 | 14 | 20 | 12 |
| HK1416 | 57941/14 | 14 | 20 | 16 |
| HK1512 | 37941/15 | 15 | 21 | 12 |
| HK1516 | 57941/15 | 15 | 21 | 16 |
| HK1612 | 37941/16 | 16 | 22 | 12 |
| HK1616 | 57941/16 | 16 | 22 | 16 |
| HK1712 | 37941/17 | 17 | 23 | 12 |
| HK1812 | 37941/18 | 18 | 24 | 12 |
| HK1816 | 57941/18 | 18 | 24 | 16 |
| HK2010 | 27941/20 | 20 | 26 | 10 |
| HK2012 | 37941/20 | 20 | 26 | 12 |
| HK2016 | 57941/20 | 20 | 26 | 16 |
| HK2210 | 27941/22 | 22 | 28 | 10 |
| HK2212 | 37941/22 | 22 | 28 | 12 |
| HK2216 | 57941/22 | 22 | 28 | 16 |
| HK2512 | 27941/25 | 25 | 32 | 12 |
| HK2516 | 47941/25 | 25 | 32 | 16 |
| HK2520 | 67941/25 | 25 | 32 | 20 |
| HK2816 | 47941/28 | 28 | 35 | 16 |
| HK2820 | 67941/28 | 28 | 35 | 20 |
| HK3012 | 27941/30 | 30 | 37 | 12 |
| HK3016 | 47941/30 | 30 | 37 | 16 |
| HK3020 | 67941/30 | 30 | 37 | 20 |
| HK3512 | 27941/35 | 35 | 42 | 12 |
| HK3520 | 67941/35 | 35 | 42 | 20 |
| HK4012 | 27941/40 | 40 | 47 | 12 |
| HK4020 | 67941/40 | 40 | 47 | 20 |
| HK4512 | 27941/45 | 45 | 52 | 12 |
|
Shaft Dia |
Unit No. |
Dimensions (mm) |
Basic Load Ratings |
Limiting speed |
Weight |
||||||
|
mm |
d |
F |
D |
B |
r min |
S |
C KN |
C0 KN |
r/min |
g |
|
|
10 |
NA4900 |
10 |
14 |
22 |
13 |
0.3 |
0.5 |
8.5 |
9.2 |
20000 |
23 |
|
12 |
NA4901 |
12 |
16 |
24 |
13 |
0.3 |
0.5 |
9.4 |
10.9 |
17000 |
26 |
|
15 |
NA4902 |
15 |
20 |
28 |
13 |
0.3 |
0.5 |
10.6 |
13.6 |
14000 |
34 |
|
17 |
NA4903 |
17 |
22 |
30 |
13 |
0.3 |
0.5 |
11 |
14.6 |
12000 |
37 |
|
20 |
NA4904 |
20 |
25 |
37 |
17 |
0.3 |
0.8 |
21 |
25.5 |
10000 |
141 |
|
22 |
NA49/22 |
22 |
28 |
39 |
17 |
0.3 |
0.8 |
22.8 |
29.5 |
9500 |
80 |
|
25 |
NA4905 |
25 |
30 |
42 |
17 |
0.3 |
0.8 |
23.6 |
31.5 |
9500 |
88 |
|
28 |
NA49/28 |
28 |
32 |
45 |
17 |
0.3 |
0.8 |
24.4 |
33.5 |
8500 |
97.7 |
|
30 |
NA4906 |
30 |
35 |
47 |
17 |
0.3 |
0.8 |
25 |
35.5 |
8000 |
101 |
|
32 |
NA49/32 |
32 |
40 |
52 |
20 |
0.6 |
0.8 |
30.5 |
47.5 |
7000 |
158 |
|
35 |
NA4907 |
35 |
42 |
55 |
20 |
0.6 |
0.8 |
31.5 |
50 |
7000 |
170 |
|
40 |
NA4908 |
40 |
48 |
62 |
22 |
0.6 |
1 |
43 |
67 |
6000 |
230 |
|
45 |
NA4909 |
45 |
52 |
68 |
22 |
0.6 |
1 |
45 |
73 |
8500 |
5500 |
|
50 |
NA4910 |
50 |
58 |
72 |
22 |
0.6 |
1 |
47 |
80 |
5000 |
274 |
|
55 |
NA4911 |
55 |
63 |
80 |
25 |
1 |
1.5 |
58 |
100 |
4700 |
393 |
|
60 |
NA4912 |
60 |
68 |
85 |
25 |
1 |
1.5 |
60 |
108 |
4300 |
426 |
|
65 |
NA4913 |
65 |
72 |
90 |
25 |
1 |
1.5 |
61 |
112 |
4100 |
456 |
|
70 |
NA4914 |
70 |
80 |
100 |
30 |
1 |
1.5 |
84 |
156 |
3800 |
728 |
|
75 |
NA4915 |
75 |
85 |
105 |
30 |
1 |
1.5 |
86 |
162 |
3600 |
775 |
|
80 |
NA4916 |
80 |
90 |
110 |
30 |
1 |
1.5 |
89 |
174 |
3400 |
878 |
|
85 |
NA4917 |
85 |
100 |
120 |
35 |
1.1 |
1 |
111 |
237 |
2800 |
1250 |
|
90 |
NA4918 |
90 |
105 |
125 |
35 |
1.1 |
1 |
114 |
250 |
3000 |
1312 |
|
95 |
NA4919 |
95 |
110 |
130 |
3 |
1.1 |
1 |
116 |
260 |
2800 |
1371 |
|
100 |
NA4920 |
100 |
115 |
140 |
40 |
1.1 |
2 |
128 |
270 |
2900 |
1900 |
|
110 |
NA4922 |
110 |
125 |
150 |
40 |
1.1 |
2 |
132 |
290 |
2600 |
2070 |
|
120 |
NA4924 |
120 |
135 |
165 |
45 |
1.1 |
2 |
181 |
390 |
2300 |
2860 |
|
130 |
NA4926 |
130 |
150 |
180 |
50 |
1.5 |
1.5 |
203 |
470 |
2000 |
3900 |
|
140 |
NA4928 |
140 |
160 |
190 |
50 |
1.5 |
1.5 |
209 |
500 |
1800 |
4150 |
