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hot sell super precision 20*37*30 NA series cheap NA6904 INA needle roller bearing

Categories INA Bearing
Brand Name: INA
Model Number: NA6904
Place of Origin: GERMANY
Model NO.: NA6904
Sizes ID*OD*W(mm): 20*37*30mm
Type: Cup Needle Roller Bearing
Brand: INA
Origin: Germany
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    hot sell super precision 20*37*30 NA series cheap NA6904 INA needle roller bearing

    INA needle roller bearing NA6904 is a of cup needle roller bearings and it is a bearing having small friction coefficient and excellent rotational performance designed.With the purpose of increasing the load area effectively,the radial gap of needle roller bearing NA6904 is smaller than the general needle roller bearings. Therefore, it alleviates the impact load, and a stable long life is gained. Since the stud undergoes screw processing and stepped processing, they can be attached easily.


    INA bearing needle NA6904 needle roller bearing NA6904

    Related models and specifications of bearing needle NA6904 needle roller bearing NA6904

    Boundary dimensionsMass/gNA Model
    /mmW
    dDC
    10221324.3NA 4900
    12241327.6NA 4901
    242246.9NA 6901
    15281335.9NA 4902
    282363.7NA 6902
    17301339.4NA 4903
    302369.9NA 6903
    20371779.9NA 4904
    3730141NA 6904
    22391785.4NA 49/22
    3930151NA 69/22
    25421794.7NA 4905
    4230167NA 6905
    284517104NA 49/28
    4530183NA 69/28
    304717108NA 4906
    4730191NA 6906
    325220168NA 49/32
    5236NA 69/32
    355520181NA 4907
    5536NA 6907
    406222240NA 4908
    6240NA 6908
    456822284NA 4909
    6840NA 6909
    507222287NA 4910
    7240NA 6910
    558025416NA 4911
    8045NA 6911
    608525448NA 4912
    8545NA 6912
    659025479NA 4913
    9045NA 6913
    7010030762NA 4914
    10054NA 6914
    7510530805NA 4915
    10554NA 6915
    8011030852NA 4916
    11054NA 6916
    85120351280NA 4917
    12063NA 6917
    90125351340NA 4918
    12563NA 6918
    95130351410NA 4919
    13063NA 6919
    100140401960NA 4920
    14071NA 6920

    Product

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    INA Bearing Needle NA6904 Needle Roller Bearing NA6904

    INA needle roller bearing NA6904 is a of cup needle roller bearings and it is a bearing having small friction coefficient and excellent rotational performance designed.With the purpose of increasing the load area effectively,the radial gap of needle roller bearing NA6904 is smaller than the general needle roller bearings. Therefore, it alleviates the impact load, and a stable long life is gained. Since the stud undergoes screw processing and stepped processing, they can be attached easily.


    Product Specification:

    • Model NO.:NA6904
    • Sizes ID*OD*W(mm):20*37*30mm
    • Type:Cup Needle Roller Bearing
    • Brand:INA
    • Origin:Germany
    • Stock:in large stock
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    INA bearing needle NA6904 needle roller bearing NA6904

    Related models and specifications of bearing needle NA6904 needle roller bearing NA6904

    Boundary dimensionsMass/gNA Model
    /mmW
    dDC
    10221324.3NA 4900
    12241327.6NA 4901
    242246.9NA 6901
    15281335.9NA 4902
    282363.7NA 6902
    17301339.4NA 4903
    302369.9NA 6903
    20371779.9NA 4904
    3730141NA 6904
    22391785.4NA 49/22
    3930151NA 69/22
    25421794.7NA 4905
    4230167NA 6905
    284517104NA 49/28
    4530183NA 69/28
    304717108NA 4906
    4730191NA 6906
    325220168NA 49/32
    5236NA 69/32
    355520181NA 4907
    5536NA 6907
    406222240NA 4908
    6240NA 6908
    456822284NA 4909
    6840NA 6909
    507222287NA 4910
    7240NA 6910
    558025416NA 4911
    8045NA 6911
    608525448NA 4912
    8545NA 6912
    659025479NA 4913
    9045NA 6913
    7010030762NA 4914
    10054NA 6914
    7510530805NA 4915
    10554NA 6915
    8011030852NA 4916
    11054NA 6916
    85120351280NA 4917
    12063NA 6917
    90125351340NA 4918
    12563NA 6918
    95130351410NA 4919
    13063NA 6919
    100140401960NA 4920
    14071NA 6920

    bearing needle


    What is needle roller bearing
    bearing needle NA6904 needle roller bearing NA6904 use a roller style rolling element to reduce friction of a rotating surface.

    Needle Bearings have a high load carrying capacity with a very small cross section height. They are available with or without an

    inner ring.The needle rollers are guided parallel to the axis using a cage retainer, thrust bearings can also be supplied with no

    retainer, which is referred to as a full complement of rollers.

    bearing needle NA6904 needle roller bearing NA6904 has a larger surface area that is in contact with the bearing outer surfaces

    compared to ball bearings.Additionally there is less clearance, or the difference between the diameter of the shaft and the diameter

    of the bearing,so they are much more compact. The typical structure consists of an inner race (or sometimes merely a shaft), a needle

    cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race.Needle bearings are

    heavily used in engine components such as rocker arm pivots, pumps, compressors, and transmissions.


    bearing needle NA6904 needle roller bearing NA6904 is a bearing which uses small cylindrical rollers.The difference between a needle

    roller bearing and roller bearing is the ratio of diameter and length of their rollers, when the ratio of the diameter and the length of

    roller of a roller bearing is between the interval of 0.1 to 0.4, that roller bearing is called a needle roller bearing.

    They are used to reduce the friction of a rotating surface.


    bearing needle NA6904 needle roller bearing NA6904 has a large surface area that is in contact with the bearing outer surfaces compared

    to ball bearings.Additionally there is less added clearance (difference between the diameter of the shaft and the diameter of the bearing)

    so they are much more compact. The typical structure consists of a needle cage which orients and contains the needle rollers,

    the needle rollers themselves, and an outer race (sometimes the housing itself).


    Radial needle bearings are cylindrical and use rollers parallel to the axis of the shaft. Thrust needle bearings are flat and use

    a radial pattern of needles.


    Full complement bearings have solid inner and outer rings and rib-guided cylindrical rollers. Since these bearings have the

    largest possible number of rolling elements, they have extremely high radial load carrying capacity and are suitable for

    particularly compact designs.


    What are the applications of bearing needle NA6904 needle roller bearing NA6904

    bearing needle NA6904 needle roller bearing NA6904 is heavily used in automobile components such as rocker arm pivots, pumps,

    compressors, and transmissions.The drive shaft of a rear-wheel drive vehicle typically has at least eight needle bearings (four in each

    U joint) and often more if it is particularly long, or operates on steep slopes.

    Product nameINA bearing needle NA6904 needle roller bearing NA6904
    materialChrome steel GCR15
    Quality CertificateISO9001:2008
    FeatureLow noise, less vibration, high precision and long life
    ID*OD*W(mm)20*37*30mm
    OriginJapan
    Net weight(kg)0.137KG
    Brand nameINA
    Tolerance levelABEC-7,ABEC-9
    Seals typezz
    Precision ratingP0, P6
    Antirust periodBearings should normally be put under the protected condition then it is to be stored and preserved. The rustresisting period is two years.
    ApplicationMining operations, paper mills, oil fields, marine industry, steel, electrical, construction machinery, various kinds of professional machinery and heavy industry of all types.

    FAQ:

    Q: What kind of bearings you supplied

    A: We supply all specification of bearings:deep groove ball bearings —-

    tapered roller bearings—– cylindrical roller bearings —-Spherical Roller Bearings

    —– angular contact bearings – – thrust roller bearings —-thrust ball bearings—-

    spherical bearings -needle roller bearings—-pillow block bearings—-sliding guid bearings

    —-wheel hub bearings and high-precision low-noise high-speed operation of special bearings.

    We also agent and supply all world famous brands of bearings:SKF bearings,NTN bearings,

    NSK bearings,NACHI bearings,TIMKEN bearings,KOYO bearings,IKO bearings,INA bearings,

    NMB bearings,BONES REDS bearings…

    Non-standard bearings can be produced according to your drawing in our factory.

    Q: When selecting bearings, what should we need to consider

    A: The precision of the bearings (dimension tolerance, loading rate), internal

    clearance and hardness under heat treatment, structure of cage and material.

    Q:The advantage of bearings
    A:

    (1) reduce friction and wear.

    To prevent metal contact and reduce friction and wear in the contact part of the bearing ring,

    rolling body and maintainer.

    (2) prolong fatigue life.

    The rolling fatigue life of the bearing, in the rotation, the rolling contact surface lubrication good,

    then extended. Conversely, the oil viscosity is low, the lubricating film thickness is not good,

    then shortened.

    (3) exhaust friction heat and cooling.

    The circulation to oil method can be used to exhaust the heat generated by friction, or from external

    heat, cooling. Prevent the bearing from overheating and prevent the lubricating oil from ageing itself.

    Q: Application area of bearings

    It can cover almost all mechanical industries, including robotic systems, lathes, tools, automobiles, large equipment, and so on.

    Q: Can I have a sample order

    A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.

    Q: What about the lead time

    A:Sample needs 3-7 days, mass production time needs 3-4 weeks.

    Q:What is your payment method

    A: We accept T/T, PAYPAL or Western Union, credit card.

    If you need the any brands or any models of bearings,please contact me!


    Email:vyse.c@cqpbearing.com
    Skype:008613130506319
    WhatsApp:008613130506319
    Wechat:008613130506319


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