Needle bearings are roller bearings with rollers that have high length-to diameter ratios. Needle bearings are used in farm and construction equipment, automotive transmissions, small gasoline engines, gear pumps, small appliance and tool motors, alternators, and aircraft controls.
Needle bearings are usually lubricated with grease, but oil or oil-mist lubrication is preferred for heavy-duty or high-speed applications. Many light-duty needle bearings never require relubrication, but high loads or speeds demand it.
Needle roller bearings are roller bearings with cylindrical rollers that are long and thin in relation to their diameter.In spite of their low cross section,needle roller bearings have a high load carrying capacity and are therefore extremely suitable for bearing arrangements where radial space is limited.A needle roller bearing is a bearing which uses small cylinrical rollers.
have many designs and sizes to match their widely uses: NA series / K series / RNA series / RNAOL series / NUTR series / RNAO series / NAOL series / NAL series / NAVP series / KBK series / STO series / F series / HK series / KNL series.
Application:
Needle roller bearings are widely used in cars, compressors, construction, electric motors, food industry, home appliances etc. As a rolling element, it turns the world.
| BEARING NO. |
Weight |
Size |
|
| mm |
| Without inner |
g |
Fw |
D |
B |
r/min |
| RNAV4902 |
28 |
20 |
28 |
13 |
0.3 |
| RNAV4903 |
30 |
22 |
30 |
13 |
0.3 |
| RNAV4904 |
71 |
25 |
37 |
17 |
0.3 |
| RNAV4905 |
83 |
30 |
42 |
17 |
0.3 |
| RNAV4906 |
94 |
35 |
47 |
17 |
0.3 |
| RNAV4907 |
142 |
42 |
55 |
20 |
0.6 |
| RNAV4908 |
192 |
48 |
62 |
22 |
0.6 |
| RNAV4909 |
239 |
52 |
68 |
22 |
0.6 |
| RNAV4910 |
227 |
58 |
72 |
22 |
0.6 |
| RNAV4911 |
344 |
63 |
80 |
25 |
1 |
| RNAV4912 |
368 |
68 |
85 |
25 |
1 |
| RNAV4913 |
413 |
72 |
90 |
25 |
1 |
| RNAV4914 |
612 |
80 |
100 |
30 |
1 |
| RNAV4915 |
646 |
85 |
105 |
30 |
1 |
| RNAV4916 |
680 |
90 |
110 |
30 |
1 |
| RNAV4917 |
873 |
100 |
120 |
35 |
1.1 |
| RNAV4918 |
912 |
105 |
125 |
35 |
1.1 |
| RNAV4919 |
952 |
110 |
130 |
35 |
1.1 |
| RNAV4920 |
1445 |
115 |
140 |
40 |
1.1 |
| RNAV4922 |
1559 |
125 |
150 |
40 |
1.1 |
| RNAV4924 |
2296 |
135 |
165 |
45 |
1.1 |
| RNAV4926 |
2806 |
150 |
180 |
50 |
1.5 |
| RNAV4928 |
2976 |
160 |
190 |
50 |
1.5
|
Your message must be between 20-3,000 characters!
