7021 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
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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: 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 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: What is the difference between deep groove ball bearings and angular contact ball bearings?
- Deep groove ball bearings have less carrying capacity, they mainly bear radial load, and can also bear certain axial load at the same time. The friction coefficient is small and the limit speed is high.Increase the bearing capacity of angular contact bearings can bear radial load and axial load, also can withstand the axial load (pure axial load, can bear a direction generally used in pairs), high speed limit.It can be seen that the two bearings differ mainly in the magnitude and direction of the load.
- Q: Angular contact ball bearings, how to judge the size of the mouth?
- Judge the size of the mouth, of course, big mouth is large, that is, the edge of the slope for the side of the big mouth.
- Q: What are the reasons for the use of tapered roller bearings and angular contact ball bearings?
- Selection of bearings in accordance with the theory and practice of judgment, that is, bearing capacity and the form of movement and load factors are different. That is, the role of the two bearings
- Q: Two angular contact ball bearings, the use of clearance problems
- Bearing in pairs need not be adjusted! The bearing is marked with letters!DB: back to backDF: face to faceDT: series connectionSU: single arbitrary combinationDU: any combination of two bearings.There is also a combination of three columns and four columns with letters on each bearing!Among them, when selecting the SU mark bearing, it is necessary to choose the bearings with the most close tolerance of the inner and outer ring diameter together. Clearance adjustment is also relatively easy.It is difficult to pair the bearings by adjusting the two common bearings together by adjusting the experience. It is best not to try in such a strict place!
- 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?
- Hello, there is a number on the front, no number on the back
- 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.
- 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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7021 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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