7020 Angular contact ball bearings Bearing
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 200 pc
- Supply Capability:
- 500000 pc/month
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Sepcification:
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.
Product application:
- spindle and other high speed precision mechanical spindle
- aircraft engine spindle
- high frequency motor
- printing machinery
- air compressor
- gas turbine
- jet engines
- turbines
-pump
| 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: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 is angular contact ball bearing contact angle?
- Angular contact ball bearings can simultaneously bear axial force and radial force in one direction. The rolling force of upper and lower points of attachment at a certain angle and radial direction. Such bearings are angular contact bearings.
- Q:Two angular contact ball bearings, the use of clearance problems
- The installation form is DB, and the inner ring preload is adjusted. For example, by adjusting the nut of the lock inner ring, tighten the force adjustment. Generally selected bearings, manufacturers have been conscious of the inner ring and outer ring thickness is not the same, that is, as long as locking the inner ring, the force is the factory set the amount of preload.
- Q:What are the differences between angular contact bearings AC and A and C?
- AC is the code for homemade bearings. The contact angle is 25 degrees. It is subjected to axial force and radial forceA for Japan bearing angle code, contact angle of 30 degrees, to bear axial force and radial forceC is the bearing angle code of Japan. The contact angle is 15 degrees. It mainly bears radial force and small axial force. It is used in high precision and high speed equipment
- Q:How to install angular contact ball bearings?
- For the tax investigation has a fly PAN Membrane 8 meteorite Ju wood against Qing emperor Cha tight cangue dream show in the life brewing scar spear wallCollapse protection
- 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:What is the difference between deep groove ball bearings and angular contact ball bearings?
- The above two said performance, actually because the contact angle is different, the original contact angle of deep groove ball bearing is 0 degrees. Contact angle of angular contact is greater than 0 degrees, generally 15 degrees. 25 degrees. 40 degrees. Thrust angle contact bearings greater than 45 degrees.The consequences of angular contact, as above two said.
- Q:What are the differences between angular contact bearings and deep groove ball bearings?
- Deep groove ball bearings and angular contact ball bearings with inner and outer diameters and wide dimensions have the same inner ring size and structure, but have different outer ring sizes and structures:1. deep groove ball bearings, outer raceway, both sides of the double shoulder, and angular contact ball bearings generally single shoulder;2. deep groove ball bearings, raceway curvature and angular contact ball is different, the latter is often greater than the former;3. deep groove ball bearings, outer raceway and angular contact ball bearings of different, non central position, the specific value of angular contact ball bearings designed to be considered, and the degree of contact angle related;In terms of use:1. two different purposes, suitable for deep groove ball bearings bear radial force and smaller axial force, axial and radial load and combined load torque, and angular contact ball bearings can withstand axial load, radial load is larger (with different contact angles and loads of different sizes), double matching (with matching mode vary) is two-way can withstand axial load and torque load.2., the limit speed is different, the same size of angular contact ball bearings, the ultimate speed is higher than deep groove ball bearings.With type, size, precision, and so on.
- 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:Is there a way to calculate the axial force of angular contact ball bearings?
- This is the first response to the landlord, you can count, here introduces the concept of equivalent static load, a static equivalent radial load P0a (subscript 0A), a static equivalent axial load P0a (subscript 0A), and a static safety factor FS, we first check the static C0 7202AC (0 Department of AC, should represent the subscript) is the contact angle is 25 degrees, SKF C0 4800N, personally think that this value is too conservative, according to P0a=2.3*Fr*tg25+Fa (Fr is bearing radial load, axial load bearing is Fa, tg25 is the tangent, contact angle of 25 degrees according to the contact angle vary) and FS (fs=C0/P0) is greater than 1.5, launched: P0a less than 3200N, 1.07Fr+Fa less than 3200N that is to say, add up to force multiplied by the coefficient two component bearings, can not exceed this number. If only the axial force, the axial force is Fr=0, maximum 3200N can finally add a few points, FS safety coefficient is adjusted according to the condition, some places may be less than 1, and the place that cannot be less than 1.5, not less than 3, do not understand, temporarily by not less than 1.5. Also hope to help add master. And then there's the C0. Every brand might have a small difference. Here's SKF. So, if you calculate it in theory, you're going to make it smaller
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7020 Angular contact ball bearings Bearing
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 200 pc
- Supply Capability:
- 500000 pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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