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Needle roller bearings

Needle roller bearings are roller bearings with long rollers of small diameter. These elements are called needles.
Despite his low cross is characterized by a high load carrying capacity and is suitable for applications with limited
space requirements in the radial direction. Profile of needles at the end tapers somewhat, and the resulting
modified Cover line between rolling elements and raceways prevents harmful edge voltage.

Construction: Needle bearings pressed through the housing, with housing on one side closed, needle roller
bearings with or without inner ring, needle and cage assemblies, needle roller bearings without flanges guide,
combined
needle roller and ball
bearings.

Example of marking:
The Needle cage K 30x35x13 , K 60x65x20
roller bearing with pressed surfaces through
HK 0306, HK 0408, HK 0509, HK 0608, HK 0609, HK 0709, HK 0808, HK 0810,
HK 0908, HK 1010, HK 1012, HK 1015, HK 1210, HK 1212, HK 1412, HK 1512, HK 1516, HK 1612, HK 1616, HK 2010, HK 2016,  HK 2020,
HK 2210, HK 2220, HK 2520, HK 5020 
roller bearing with pressed closed surfaces
BK 1010, BK 1210, BK 1412, BK 1612, BK 2012, BK 2020, BK 5020 ...
Needle roller bearings with guiding flanges without inner ring 
NK 10/12, NK 10/16, NK 12/12, NK 12/16, NK 14/16, NK 1420,
NK 15/16, NK 15/20, NK 18/16, NK 18/20, NK 20/16, NK 20/20, NK 30/20, NK 37/20, RNA 4901, RNA 4902, RNA 4903, RNA 4904, RNA 4905,
RNA 4906, RNA 4907, RNA 4908, RNA 4909, RNA 4910, RNA 4911, RNA 4912, RNA 4901, RNA 6902, RNA 6903, RNA 6904, RNA 6905,  
NKS 30, NKS 40
Needle roller bearings with flanges with inner guide ring
NKI 10/20, NKI 12/16, NKI 15/16, NKI 15/20, NKI 20/16, NA 4900,
NA 4901, NA 4902, NA 4903, NA 4904, NA 4905, NA 4906, NA 4907, NA 4908, NA 4909, NA 4910, NA 4911, NA 4912, NA 6904, NKIS 17, NKIS 20,
NKIS 25, NKIS 30, NKIS 35, NKIS 40
These markings are the same as for SKF bearings, bearings and for other manufacturers.

Jehlová ložiska

1. With molded    2.  With case on one     3. Needle roller         4. Needle roller bearings 
    case                     side closed                   bearings with             without inner ring
                                                        inner ring       

 

 


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