Product Series
RNA, NK Type_RNA, NK
RNA, NK type needle roller bearings, this type of bearing has no inner ring, it is suitable for the support structure with limited radial installation size, and the journal matched with the bearing is directly used as the rolling surface.
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Needle Roller Bearings
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RNA, NK Type_RNA, NK
RNA, NK type needle roller bearings, this type of bearing has no inner ring, it is suitable for the support structure with limited radial installation size, and the journal matched with the bearing is directly used as the rolling surface. As the shaft of the raceway surface, the hardware must be hardened and ground, and only when it is processed to the appropriate size and shape accuracy, the entire set of needle roller bearings can have a high life and running accuracy. At the same time, since there is no inner ring, the diameter of the shaft can also be appropriately enlarged, thereby increasing the rigidity.
Bearing Number |
Dimensions (mm) |
RNA4822A |
120×140×30 |
RNA49/8A |
10×19×11 |
RNA49/9A |
12×20×11 |
RNA4900A |
14×22×13 |
RNA4901A |
16×24×13 |
RNA4902A |
20×28×13 |
RNA4902AF |
20×28×13 |
RNA4903A |
22×30×13 |
RNA4904A |
25×37×17 |
RNA4905A |
30×42×17 |
RNA4906A |
35×47×17 |
RNA4907A |
42×55×20 |
RNA4907A/AS4 |
42×55×20 |
RNA4907AF1 |
42×55×20 |
RNA4908A |
48×62×22 |
RNA4909A |
52×68×22 |
RNA4909AF1 |
52×68×22 |
RNA4910A |
58×72×22 |
RNA4910A/YB2 |
58×72×22 |
RNA4911A |
63×80×25 |
RNA4912A |
68×85×25 |
RNA4913A |
72×90×25 |
RNA4914A |
80×100×30 |
RNA4915A |
85×105×30 |
RNA4916A |
90×110×30 |
RNA4917A |
100×120×35 |
RNA4918A |
105×125×35 |
RNA4919A |
110×130×35 |
RNA4920A |
115×140×40 |
RNA4922A |
125×150×40 |
RNA4924A |
135×165×45 |
RNA59/7A |
10×17×15 |
RNA59/8A |
12×19×15 |
RNA5900A |
14×22×16 |
RNA6901A |
16×24×22 |
RNA6901 |
16×24×22 |
RNA6902 |
20×28×23 |
RNA6903 |
22×30×23 |
RNA6904 |
25×37×30 |
RNA69/22 |
28×39×30 |
RNA6905 |
30×42×30 |
RNA69/28 |
32×45×30 |
RNA6906 |
35×47×30 |
RNA6901AF1 |
16×24×22 |
RNA6902A |
20×28×23 |
RNA6903A |
22×30×23 |
RNA6904A |
25×37×30 |
RNA6905A |
30×42×30 |
RNA6905ATN1 |
30×42×30 |
RNA6905AF1A |
30×42×30 |
RNA6906A |
35×47×30 |
RNA49/7X2A |
10×17×12 |
RNA4905X2A |
30×42×20 |
RNA49/38X3A |
45×55×22 |
RNA4908X2A |
45×62×24 |
RNA4908X3A |
|
RNA4952X3A |
55×68×25 |
RNA59/7X2A |
10×17×15 |
RNA59/8X2A |
12×19×15 |
RNA5902X3A |
19×27×16 |
RNA5904X3A |
25×35×25 |
RNA5908X3A |
50×65×34 |
RNA59/38X3A |
50×65×35 |
RNA6903X2A/AS1 |
45×55×32 |
RNA5001X3A |
16×27×25 |
RNA5001X2A |
20×28×20 |
RNA5002X2A |
18×32×25 |
RNA5003X2A |
22×35×25 |
RNA5006X3A |
45×55×32 |
RNA5007X1A |
50×64×36 |
RNA6001X2A |
20×28×25 |
RNA6001X2L1A |
20×28×25 |
RNA6002X1A |
18×33×30 |
RNA6002X1ATN1 |
18×33×30 |
RNA6/37A |
37×52×22 |
NK16/16A |
16×24×16 |
NK16/20A |
16×24×20 |
NK16/20AF1 |
16×24×20 |
NK14/16A |
14×22×16 |
NK20/20A |
20×28×20 |
NK20/25A |
20×28×25 |
NK22/20A |
22×30×20 |
NK25/16A |
25×33×16 |
NK25/20A/ASI |
25×33×20 |
NK32/20A |
32×42×20 |
NK55/25A |
55×68×25 |
RNA2913/YA4 |
75×90×16 |
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Advantages
The product is widely used as a supporting product in industries such as metallurgy, mining, petroleum, chemical, coal, cement, papermaking, wind power, heavy machinery, engineering machinery, agricultural machinery, port machinery, etc.
01
Suitable for mass production, with stable and reliable quality and high production efficiency
02
Standardized size, interchangeable, easy to install and disassemble, and easy to maintain
03
Compact structure, light weight, and reduced axial size
04
High precision, high load, low wear, and long service life
05
The starting friction torque is only slightly higher than the rotational friction torque
06
Suitable for mass production, with stable and reliable quality and high production efficiency
07
The transmission friction torque is much lower than that of hydraulic bearings, resulting in lower friction temperature rise and power consumption
08
Some bearings have automatic centering performance
Processing Factory
We have a complete and scientific quality management system, equipped with modern production equipment and advanced testing instruments








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