we has high talented employee team, topping production equipment and perfect inspection instruments. YFB produce both Inch & Metric sizes : Machined type needle bearings, Track rollers, Combined needle bearings, Trust needle bearings, Drawn cup needle bearing, and non-standard bearings, almost about 2,000 different types. YFB products have been widely used in engineering machinery, machine tools, textiles, printing machines, automation equipment and machining center
Shaft diameter |
Bearing Designation |
Mass Approx |
Boundary Dimensions |
Basic Load Rating |
Limiting Speed |
Current |
Original Code |
Fw |
D |
C |
Cr Dynamic |
Cor Static |
Oil |
mm |
g |
mm |
N |
rpm |
5 |
NK5/10 TN |
|
2.9 |
5 |
10 |
10 |
2100 |
1400 |
36780 |
8 |
NK8/12 TN |
|
8.3 |
8 |
15 |
12 |
3050 |
3650 |
29112 |
10 |
NK10/12 TN |
4624097K |
10 |
10 |
17 |
12 |
4750 |
5350 |
23500 |
|
5624097 |
16.6 |
10 |
17 |
15 |
4860 |
7100 |
23500 |
12 |
NK12/12 |
644097 |
11.8 |
12 |
19 |
12 |
6050 |
6400 |
21640 |
|
5624098 |
15.4 |
12 |
19 |
15 |
6400 |
7100 |
21640 |
NK12/16 |
|
16.8 |
12 |
19 |
16 |
8200 |
9800 |
21640 |
14 |
NK14/16 |
4624900K |
20.8 |
14 |
22 |
16 |
8260 |
9600 |
18322 |
NKS14 |
|
27 |
14 |
25 |
16 |
10400 |
10800 |
17652 |
RNA4900 |
4624900 |
24.4 |
14 |
22 |
13 |
8060 |
9000 |
18322 |
RNA6900 |
6634900 |
29.1 |
14 |
22 |
22 |
8281 |
11612 |
18322 |
15 |
NK15/12 |
644800K |
18.5 |
15 |
23 |
12 |
8600 |
10070 |
21004 |
RNA152815 |
|
31.7 |
15 |
28 |
15 |
13600 |
17200 |
100231 |
|
7948/15 |
16.1 |
15 |
22 |
12 |
8200 |
9800 |
8412 |
|
644302 |
18.2 |
15 |
25 |
12 |
10600 |
13500 |
17144 |
16 |
NK16/16 |
|
20.8 |
16 |
24 |
16 |
9030 |
11900 |
15522 |
NK16/20 |
624701 |
23.9 |
16 |
24 |
20 |
10400 |
16800 |
15522 |
RNA4901 |
4624901 |
16.6 |
16 |
24 |
13 |
6400 |
8900 |
15522 |
RNA6901 |
6634901 |
28.7 |
16 |
24 |
22 |
14000 |
18600 |
15522 |
NKS16 |
|
30 |
16 |
28 |
16 |
14900 |
15000 |
20000 |
17 |
NK17/16 |
644903K |
21.5 |
17 |
25 |
16 |
9000 |
13500 |
14163 |
18 |
NK18/20 |
|
30.5 |
18 |
26 |
20 |
10500 |
13800 |
13628 |
20 |
NK20/16 |
644802 |
25.7 |
20 |
28 |
16 |
11500 |
13400 |
12716 |
NK20/20 |
624802 |
29.3 |
20 |
28 |
20 |
12400 |
21800 |
12716 |
NK202616 |
|
20.8 |
20 |
26 |
16 |
9600 |
10800 |
9125 |
NK202620 |
|
17.2 |
20 |
26 |
20 |
10500 |
11900 |
9125 |
NKS20 |
|
46.8 |
20 |
32 |
20 |
20000 |
22000 |
18000 |
NK203312SX |
|
29.1 |
20 |
33 |
12 |
13000 |
17500 |
11124 |
|
6624101 |
24.3 |
20 |
28 |
25 |
11000 |
12900 |
12716 |
RNA4902 |
4624902 |
20.5 |
20 |
28 |
13 |
10800 |
12800 |
12716 |
RNA6902 |
6634902 |
35.4 |
20 |
28 |
23 |
13000 |
25000 |
12716 |
22 |
NK22/16 |
NK223016 |
29.2 |
22 |
30 |
16 |
13500 |
18000 |
11527 |
|
NK223516 |
34.6 |
22 |
35 |
16 |
18600 |
20800 |
12711 |
NKS22 |
|
60.2 |
22 |
35 |
20 |
21500 |
25000 |
17000 |
RNA4903 |
4644903 |
20.7 |
22 |
30 |
13 |
12000 |
16800 |
16300 |
RNA6903 |
6634903 |
39.8 |
22 |
30 |
23 |
14000 |
19900 |
16300 |
|
624703 |
53 |
22 |
35 |
25 |
24500 |
28000 |
14187 |
|
634704L |
42.5 |
22 |
30 |
30 |
17700 |
27000 |
16300 |
|
644704 |
27.4 |
22 |
28 |
16 |
10500 |
15050 |
15172 |
|
NK223516 |
49.4 |
22 |
35 |
16 |
18600 |
20800 |
16522 |
23 |
|
634704KA |
37.5 |
23 |
30 |
30 |
18600 |
29000 |
15711 |
25 |
NK25/16 |
624904 |
30 |
25 |
33 |
16 |
12900 |
20400 |
15000 |
NK25/20 |
644804 |
38.4 |
25 |
33 |
20 |
16800 |
28500 |
15000 |
RNA4904 |
4644904 |
50.8 |
25 |
37 |
17 |
11912 |
16594 |
14060 |
RNA6904 |
6634904 |
97.7 |
25 |
37 |
30 |
26000 |
43000 |
14060 |
NKS25 |
|
65 |
25 |
38 |
20 |
25800 |
31000 |
16300 |
|
624704 |
100.1 |
25 |
35 |
25 |
14900 |
22400 |
14060 |
|
644804K |
63 |
25 |
33 |
30 |
18800 |
20500 |
14060 |
26 |
NK26/16 |
|
30 |
26 |
34 |
16 |
15000 |
23000 |
16300 |
NK26/20 |
|
40 |
26 |
34 |
20 |
17000 |
30000 |
16300 |
28 |
RNA283833 |
|
99.8 |
28 |
38 |
33 |
33000 |
57000 |
12000 |
|
F3833 |
99.8 |
28 |
38 |
33 |
33000 |
57000 |
12000 |
NKS28 |
|
80 |
28 |
42 |
20 |
25900 |
33500 |
14600 |
30 |
NK30/20 |
644805 |
57.9 |
30 |
40 |
20 |
20600 |
32000 |
12066 |
NK30/30 |
|
95 |
30 |
40 |
30 |
31500 |
50000 |
14500 |
RNA4905 |
4624905 |
57 |
30 |
42 |
17 |
13452 |
20475 |
12066 |
RNA6905 |
6634905 |
106.5 |
30 |
42 |
30 |
26300 |
31750 |
12066 |
|
624905K |
68 |
30 |
42 |
20 |
15400 |
24500 |
12066 |
32 |
NK32/20 |
624705 |
75.4 |
32 |
42 |
20 |
17500 |
33500 |
12066 |
RNA49/28 |
46449/32K |
80 |
32 |
45 |
17 |
17400 |
30050 |
12000 |
NKS32 |
|
100 |
32 |
47 |
22 |
31000 |
40000 |
12100 |
RNA69/28 |
|
125 |
32 |
45 |
30 |
39500 |
61300 |
13100 |
|
644906 |
42 |
32 |
38 |
11 |
10750 |
30500 |
12000 |
|
644706 |
193 |
32 |
50 |
35 |
40500 |
63000 |
12000 |
35 |
NK35/20 |
644806 |
70 |
32 |
45 |
20 |
13851 |
26900 |
12000 |
RNA4906 |
4624906 |
62.8 |
35 |
47 |
17 |
17000 |
30500 |
12000 |
RNA6906 |
6634906 |
116 |
35 |
47 |
30 |
35000 |
67000 |
12000 |
|
644907 |
161 |
35 |
51 |
32 |
43500 |
71000 |
11680 |
37 |
|
624706 |
154 |
37 |
52 |
22 |
28500 |
45500 |
9027 |
40 |
NK40/20 |
|
78.9 |
40 |
50 |
20 |
19600 |
43000 |
8881 |
NK40/30 |
|
120 |
40 |
50 |
30 |
22200 |
51350 |
8881 |
RNA69/32 |
66349/32 |
147 |
40 |
52 |
36 |
25500 |
68500 |
8881 |
42 |
NK42/20 |
|
83 |
42 |
52 |
20 |
23900 |
45000 |
10000 |
NK42/30 |
|
125 |
42 |
52 |
30 |
27000 |
49000 |
10000 |
RNA4907 |
4624907 |
99.3 |
42 |
55 |
20 |
19800 |
41500 |
8710 |
RNA6907 |
6634907 |
160 |
42 |
55 |
36 |
26000 |
60500 |
8710 |
|
644708 |
148 |
42 |
65 |
22 |
31500 |
51000 |
8710 |
43 |
NK43/20 |
|
84 |
43 |
53 |
20 |
25700 |
75000 |
10000 |
NK43/30 |
|
126 |
43 |
53 |
30 |
39000 |
75000 |
10000 |
45 |
NK45/20 |
644808 |
81.5 |
45 |
55 |
20 |
19800 |
46500 |
7650 |
|
624708 |
75.3 |
45 |
55 |
22 |
20500 |
49600 |
7650 |
|
46449/38 |
80 |
45 |
58 |
20 |
21600 |
50500 |
7650 |
48 |
RNA4908 |
4644908 |
132 |
48 |
62 |
22 |
31036 |
63873 |
8120 |
RNA6908 |
6634908 |
238 |
48 |
62 |
40 |
64000 |
112000 |
8120 |
50 |
NK50/25 |
|
167 |
50 |
62 |
25 |
28000 |
67000 |
8140 |
NK50/35 |
|
236 |
50 |
62 |
35 |
32000 |
70100 |
8140 |
|
624708K |
328 |
50 |
65 |
34 |
40000 |
62000 |
8140 |
52 |
RNA4909 |
4624909 |
163 |
52 |
68 |
22 |
37000 |
69500 |
7625 |
RNA6909 |
6634909 |
308 |
52 |
68 |
40 |
61500 |
123500 |
7625 |
55 |
NK55/25 |
|
167 |
55 |
68 |
25 |
30600 |
60800 |
7625 |
|
624709 |
210 |
55 |
68 |
25 |
36000 |
68000 |
7625 |
58 |
RNA4910 |
4644910 |
161 |
58 |
72 |
22 |
41000 |
72000 |
7500 |
RNA6909 |
6634910 |
296 |
58 |
72 |
40 |
68000 |
135000 |
7500 |
60 |
NK60/25 |
|
154 |
60 |
72 |
25 |
39000 |
86000 |
7000 |
63 |
RNA4911 |
4644911 |
241 |
63 |
80 |
25 |
50600 |
96580 |
6340 |
RNA6911 |
6634911 |
430 |
63 |
80 |
45 |
82560 |
172000 |
6340 |
68 |
RNA4912 |
4644912 |
257 |
68 |
85 |
25 |
52800 |
91050 |
6100 |
RNA6912 |
6634912 |
436 |
68 |
85 |
45 |
88500 |
186000 |
6100 |
72 |
RNA4913 |
4644913 |
300 |
72 |
90 |
25 |
57500 |
110500 |
6100 |
RNA6913 |
6634913 |
571 |
72 |
90 |
45 |
87600 |
194500 |
6100 |
80 |
RNA4914 |
4644914 |
400 |
80 |
100 |
30 |
79000 |
154000 |
5130 |
RNA6914 |
6634914 |
815 |
80 |
100 |
54 |
121000 |
263000 |
5130 |
85 |
RNA4915 |
4644915 |
472 |
85 |
105 |
30 |
82000 |
158000 |
5130 |
RNA6915 |
6634915 |
923 |
85 |
105 |
54 |
128000 |
272000 |
5130 |
90 |
RNA4916 |
4644916 |
496 |
90 |
110 |
30 |
81000 |
170500 |
4927 |
RNA6916 |
6634916 |
978 |
90 |
110 |
54 |
130500 |
280600 |
4927 |
96 |
|
SG-421 |
496 |
96 |
115 |
29 |
73000 |
137000 |
4600 |
100 |
RNA4917 |
4644917 |
608 |
100 |
120 |
35 |
98000 |
207000 |
4600 |
RNA6917 |
6634917 |
1112 |
100 |
120 |
63 |
161000 |
337000 |
4600 |
105 |
RNA4918 |
4644918 |
713 |
105 |
125 |
35 |
98500 |
239000 |
4000 |
RNA6918 |
6634918 |
1250 |
105 |
125 |
63 |
174000 |
38000 |
4000 |
110 |
RNA4919 |
4644919 |
685 |
110 |
130 |
35 |
112000 |
245000 |
3870 |
RNA6919 |
6634919 |
1325 |
110 |
130 |
63 |
196000 |
400000 |
3870 |
115 |
RNA4920 |
4624920 |
1006 |
115 |
140 |
40 |
120000 |
264000 |
3710 |
125 |
RNA4922 |
6634922 |
1200 |
125 |
150 |
40 |
12400 |
270000 |
3350 |
135 |
RNA4924 |
4644924 |
1760 |
135 |
165 |
45 |
174000 |
386000 |
2920 |
160 |
RNA4928 |
4644928 |
2350 |
160 |
190 |
50 |
200000 |
460000 |
2900 |
4) Heavy duty needle roller bearing: NK, NKS, RNA49, RNA69, NKI,
NKIS, NA49, NA48, NA69, RNA49 RS, RNA49 2RS, NA49 2RS, NA49 RS,
RNAO, NAO, RPNA, PNA, RNAV, NAV
Heavy Duty Needle Roller Bearings Without Inner Ring
;
NA69; NA48; RNA49(2)RS; NA49 2RS; NAO;
RNAO; RNAV; NAV ;IR; BR, BRI