Needle Roller Bearing

NEEDLE BEARING

"The rolling elements in the needle bearing are thin and long cylinders. Their small dimensions make them suitable for special requirements. Depending on the variant, an inner ring is omitted, the needle roller then rolls directly on the shaft or axle. Most radial needle bearings have very good floating properties.
Features of these series:
The compact designs of needle roller bearings, drawn cup needle roller bearings, drawn cup needle roller bearings with closed end and thrust needle roller bearings make possible a space-saving mounting either in the radial or the axial direction and offer nevertheless a relatively high load carrying capacity. Furthermore, radial needle roller bearings have got excellent non-locating bearing properties."

Send Message Free Samples More Information

Shaft Bearing Designation Mass Boundary Dimension Basic Loading Limiting
Speed
Current Original d Fw D B Dynamic Static Oil
mm code code g mm N rpm
5 NA495 7 5 13 10 2670 2350 34000
NA495TN 7 5 13 10 2670 2350 34000
6 NA496 9 6 15 10 3150 3000 32000
7 NA497 12 7 17 10 3600 3650 30000
8 NKI8/16 8 14 25 16 12400 11300 21500
NA498 16 8 19 11 4300 3950 28000
9 NKI9/12 16.6 9 12 19 12 6200 7000 21700
NA499 17 9 20 11 4850 4900 26000
NKI9/16 21.9 9 19 16
10 NKI10/16 27.3 10 14 22 16 9800 10500 196500
NA4900 4524900 21 10 14 22 13 8000 9000 23700
NA6900 6534900 38.4 10 14 22 22 9000 11000 23700
12 NA4901 4524901 25.1 12 16 24 13 9000 10800 20000
NKI12/20 39 12 16 24 20 14000 18400 21000
NA6901 6534901 44.5 12 16 24 22 6000 21600 20000
NKIS12 58 12 16 30 16 16000 17000 20000
NA12*32*15V 12 32 15
15 NKI15/16 38 15 19 27 16 8800 12800 19100
NKI15/20 45.7 15 19 27 20 12300 19000 19100
NA4902 4924902 32 15 20 28 13 6400 9000 18000
NA6902 6534902 61.6 15 20 28 23 13100 20900 18000
NKIS15 90 15 22 35 20 23500 24000 17000
NA5902 52 15 20 28 18
NA153212 15 32 12
74802 74802 15 36 25.4
16 NKIS16 16 28 16 13000 17400 22000
NA16*36*24 16 36 24
17 NKI17/16 41.4 17 21 29 16 13000 18200 20000
NA4903 4544903 32.8 17 22 30 13 7000 10000 17000
NA6903 6534903 68.2 17 22 30 23 14400 24900 17000
NA5903 56 17 22 30 18 15200 21700 18000
NA17 17 37 20
20 NKI20/16 48.5 20 24 32 16 10800 17000 16700
NA4904 4524904 70.2 20 25 37 17 21000 25000 17000
NKIS20 119 20 28 42 20 28000 35500 15000
NA6904 6254904 20 25 37 30 36000 51000 17000
NA5904 20 25 37 23
22 NKI22/16 50 22 26 34 16 15300 23600 17000
NA49/22 76 22 28 39 17 22000 29500 15000
NA69/22 130 22 28 39 30 37500 55000 15000
NA223934 22 28 39 34
23 NA2020 23 42 22
25 NKI25/30 115 25 29 38 30 31500 56000 14000
NA4905 4524905 76 25 30 42 17 23600 31500 14000
NA6905 6534905 138 25 30 42 30 29000 59000 14000
NKIS25 160 25 32 47 22 32000 55000 13000
F-208277 25 32 47 22
NKI25/20 25 29 38 20 21900 34000 15000
NA5905 139 25 30 42 23 30500 43000 13000

Blogs of Needle Roller Bearing

  • Basic Reasons Affecting Surface Polishing Finish
    The grinding method can make the mold surface smooth, and the degree of smoothness is related to the following factors: ①. The quality of tool steel ②. Heat treatment process ③. Polishing technology and process equipment It is generally believed that polishing process equipment is the most important influencing factor. Appropriate polishing technology and process equipment combined with high-quality tool steel and correct heat treatment process can achieve satisfactory smoothness. On the contrary, even if the best quality steel is used, it will not achieve a highly mirrored effect.
  • TIMKEN Bearing Materials Should Have The Following Properties
    The property of preventing adhesion and boundary lubrication when the shaft and the bearing are in direct contact. The material factors that affect the friction compatibility of the friction pair are: (1) The metallurgical difficulty of the pair materials to form an alloy. (2) The affinity between the material and the lubricant. (3) The friction coefficient of the pair materials in the unlubricated state. (4) The microstructure of the material. (5) The thermal conductivity of the material. (6) The size of the material surface energy and the characteristics of the oxide film.
  • Bearing Cage Types, Functions And Damage Causes
    Bearing cage (also known as bearing retainer) refers to a bearing part that partially wraps all or part of the rolling elements and moves with them, isolating the rolling elements, and usually guiding the rolling elements and keeping them in the bearing.

FAQs of Needle Roller Bearing

1Are you trading company or manufacturer ?
We are factory. Welcome to visit our factory.
2Do you provide Free Samples ?
Yes, we could offer you free samples, but do not pay the cost of freight.
3What's the MOQ ?
The MOQ depends on bearing's model number and price.Usually the total cost will be $1000 at least.
4What's your Payment Terms ?
We highly recommend Trade Assurance order on alibaba. It is safe, convenient, and can make sure the on time delivery. 1 Trade Assurance Order 2 T/T (Bank Wire) 3 Western Union 4 Money Grame 5 Paypal
5How long is your lead-time?
Generally it is 2 to 4 days if the goods are in stock, or it will be about 6 to 15 days depends on quantity.

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