7008 Angular contact ball bearings bearing
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- TT OR LC
- Min Order Qty:
- 1000 pc
- Supply Capability:
- 500000 pc/month
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Angular contact ball bearings can bear radial load and axial load at the same time and also can bear pure axial load. Their ability of axial load is determined by contact angle and is increased with contact angle increasing; speed limit is higher; stiffness is big and can be pre-adjusted. They are applicable to high-speed and high-precision site.
- spindle and other high speed precision mechanical spindle
- aircraft engine spindle
- high frequency motor
- printing machinery
- air compressor
- gas turbine
- jet engines
|Design ations||Principal dimensions (mm)||〆15º||〆25º|
|Limit speed||Limit speed|
|d||D||B||Basic load rating||Lubrication||Rated load||Lubrication|
|Cr Cor||Grease Oil||Cr Cor||Grease Oil|
|70 Series single angular contact ball bearings|
|7003||17||35||10||6.7 4.9||44000 66000||6.4 4.7||39000 59000|
|7004||20||42||12||9.6 6.3||37000 55000||9.2 6.0||33000 49000|
|7005||25||47||12||12.9 8.7||33000 49000||12.3||29000 44000|
|7006||30||55||13||15.7 11.6||27000 42000||14.9 10.9||23000 37000|
|7007||35||62||14||19.3 17.5||19000 33000||10.4 10.3||19000 33000|
|7008||40||68||15||19.9 19.1||18000 31000||18.9 18.2||16000 27000|
|7009||45||75||16||26.7 25.3||16000 27000||25.4 24.1||15000 25000|
|7010||50||80||16||27.6 27.5||15000 25000||26.2 26.2||14000 23000|
|7011||55||90||18||36.7 37.1||13000 21000||34.8 35.3||12000 19000|
|7012||60||95||18||37.8||13000 21000||35.8 38.0||11000 18000|
|7013||65||100||18||38.9 42.9||12000 19000||36.8 40.7||10000 17000|
|7014||70||110||20||49.9 55.5||11000 18000||47.2 52.7||9000 16000|
|7015||75||115||20||51.3 59.2||10000 17000||48.5 56.2||8500 15000|
|7016||80||125||22||61.6 70.4||9000 16000||58.3 66.9||8000 14000|
|7017||85||130||22||63.6||8500 15000||59.9 71.3||7500 13000|
|7018||90||140||24||66.9||8000 14000||63.2 79.7||7000 12000|
|7019||95||145||24||79.1 97.6||7500 13000||74.8||6500 11000|
|7020||100||150||24||81.2 103.3||7000 12000||76.7||6000 10000|
|7021||105||160||26||93.9 118.2||6500 11000||88.8||6000 10000|
|7022||110||170||28||110.4 139.8||6000 10000||104.4 132.8||5700 9000|
|7024||120||180||28||112.7 148.7||6000 10000||106.3 141.1||5700 9000|
|7026||130||200||33||144.8 190.8||5700 9000||136.8 181.0||5000 8000|
|7028||140||210||33||148.7 202.6||5000 8000||140.4 192.2||4600 7500|
|7030||150||225||35||168.4 232.5||4600 7500||159.1 220.6||4000 6500|
|7032||160||240||38||189.1 264.5||4000 6500||178.6 251.0||3800 6000|
|7034||170||260||42||205.6 299.3||3800 6000||194.2 284.0||3300 5300|
|7036||180||280||46||229.5 352.1||3500 5700||216.8 334.1||3000 5000|
- Q:Do angular contact ball bearings come with a sealing cap?
- Angular contact ball bearings generally have no dust caps or seals. You can design and install an oil seal or something like that.In general, deep groove ball bearings are lubricated with dust cover. Angular contact ball games are generally lubricated with lubricating oil, without dust cover, such as grease lubrication, the effect is poor.
- Q:What does angle contact back to back mean?
- Refers to the installation method, put it is face to face
- Q:Angular contact ball bearings, how to judge the size of the mouth?
- Angular contact bearing on both sides of the outer ring thickness is not the same thin, over there is big mouth
- Q:How to install angular contact ball bearings?
- The installation of angular contact ball bearings is more complicated than deep groove ball bearings. It is mostly installed in pairs, and preload is necessary. Well installed, can make the host work accuracy, bearing life greatly improved; otherwise, not only the accuracy can not meet the requirements, the life will be affected.The installation form of angular contact ball bearings, a series of face to face and back to back, three. (two back-to-back wide end bearing relative) installation, bearing contact angle line along the axis of rotation diffusion direction, bearing angle can increase the radial and axial rigidity, maximum deformation resistance; face to face (two relatively narrow end bearing) installation, bearing contact angle of the rotary axis line towards the direction of its convergence. To the point of less rigidity. Because of the inner ring of the bearing outer ring out, when pressing the outer ring two bearing together, the original gap ring is eliminated, can increase the bearing preload; tandem arrangement (two wide end bearing in one direction) when installing the bearing contact angle and parallel lines in the same direction, the two share the same bearing the direction of the work load. However, in order to ensure the axial stability of the installation, the two pairs of bearings arranged in series must be installed opposite the ends of the shaft in order to ensure the axial stability of the installation.
- Q:The difference between ultra high speed angular contact ball bearings and other plain bearings
- The roller of angular contact ball bearings is ball, because it is a point contact (different from roller bearing line contact), so it can provide higher speed, smaller heating quantity and higher rotation precision. In some high speed spindle applications, ceramic ball hybrid bearings will also be used. Compared with the traditional steel ball, the characteristics of ceramic ball materials endow the ceramic ball bearings with high rigidity, high speed, high temperature resistance and long service life, so as to meet the customers' demand for machine tool bearing products. (flight five Rui reminded you, at present, the mainland ceramic ball mixed bearings spot less, in your choice of such imported bearings, you need to pay attention to delivery time).On the contact angle of angular contact ball bearings, 15 popular and the contact angle of 25 speed; high performance usually contact angle of 15, while the axial contact angle of 25 with high bearing capacity. Due to the effect of preload contact application of ball bearings for precision angle is very large, such as high load capacity, high rigidity of the occasion, will generally choose bearing pre medium or heavy load; and for some applications of high speed and high precision, in the early selection of imported bearings, need to pay attention to choose the appropriate pre load. Pre load is generally divided into light, medium, heavy three kinds, generally light preload is more common. In order to facilitate the use of customers, the general will have universal matching, precision angular contact ball bearings. This type of imported bearings eliminates the customer's preload adjustment, thus saving installation time.
- Q:What are the differences between angular contact bearings AC and A and C?
- Angular contact bearings common suffix has AC, C and B, AC said nominal contact angle a is 25 degrees, C is 15 degrees, B is 40 degrees.
- Q:What does angular contact ball bearing 70216AC mean?
- Name = General rolling bearing type code No.Standard = excerpt from GB/T 272-1993-----------------------------------------------------------Bearing type = angle contact ball bearingCode =7The original code name is =6Bearing type = angle contact ball bearingDimension series code = (0) 2After two, 16, bearing nominal diameter 16 * 5=80mmName = internal structure codeStandard = excerpt from GB/T 272-1993
- Q:How many angles are there in angular contact ball bearings? How many degrees are they?
- A stands for 30 degrees, A5 stands for 25 degrees, B stands for 40 degrees, and C stands for 15 degreesThe new Seiko NSK serves you!
- Q:How can angular contact be distinguished from the front and back? What are the characteristics of each?
- There is no difference between the front and the back of this bearing.There's something wrong with my answer.
- Q:Can angular contact ball bearings be adjustable?
- You say, of course notHave you seen when you spend RMB Mingbi useful
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