- Auto Bearing[2]
- Angular Contact Ball Bearings[10]
- Ceramic Ball Bearing[10]
- Deep Groove Ball Bearings[10]
- Other Ball Bearings[1]
- Self-aligning Ball Bearings[7]
- Thrust Ball Bearings[10]
- Linear Bearings[1]
- Needle Bearings[9]
- Other Bearings[1]
- Pillow Block Bearings[10]
- Rod End Bearings[6]
- Cylindrical Roller Bearings[10]
- Spherical Roller Bearings[10]
- Taper Roller Bearings[10]
- Thrust Roller Bearings[10]
- Slewing Bearings[1]
- Special Bearings[1]
- Contact Person : Mr. mu Ray
- Company Name : Nanning Yong Feng Casters Electromechanical Business Department
- Tel : 86-152-75121741
- Address : Guangxi,Nanning city,No. A5-15, Dongbo International Hardware And Electromechanical City
- Country/Region : China
- Zip : 530003
Related Product Searches:7300 B/DF series Face to Face Duplex Angular contact ball bearings,High Quality,7300 B/DF angular contact ball bearings, ball bearings,7300 B/DF series
Specifications(7300 B/DF series)
Bearings No. | d | D | B1 | rmin | r1min |
7305B DF | 25 | 62 | 34 | 1.1 | 0.6 |
7306B DF | 30 | 72 | 38 | 1.1 | 0.6 |
7307B DF | 35 | 80 | 42 | 1.5 | 0.6 |
7308B DF | 40 | 90 | 46 | 1.5 | 0.6 |
7309B DF | 45 | 100 | 50 | 1.5 | 0.6 |
7310B DF | 50 | 110 | 54 | 2 | 1 |
7311B DF | 55 | 120 | 58 | 2 | 1 |
7312B DF | 60 | 130 | 62 | 2.1 | 1.1 |
7313B DF | 65 | 140 | 66 | 2.1 | 1.1 |
7314B DF | 70 | 150 | 70 | 2.1 | 1.1 |
Angular Contact Ball Bearing
Angular contact ball bearings are also called angular contact radial thrust ball bearings.
This type of bearing is particularly suitable for carrying combined loads (radial and axial load) as well as pure axial loads and can be operated at relatively high speeds.
The axial load carrying capacity of angular contact ball bearings changes along with dimensions of contact angle. The larger the contact angle, the better the axial load carrying capacity is.
The contact angle a is defined as the angle between the line joining the contact points of the ball and the raceways int he radial plane, along which the load is transmitted from one raceway to another, and a line perpendicular to the bearing axis.
The allowable angle error of a single row contact ball bearing is limited. The angle errors of inner ring and outer ring are dependent on radial clearance, bearing dimension, internal structure, and the force or mounted acting on bearings. The relationship of those factors is so complicated that an accurate value can’t be provided at present.
When the clearance of paired mounting angular contact ball bearings(or double_row angular contact ball bearing), especially of those arranged back to back, is respectively small, once angular errors are made between the inner ring and outer ring, balls and cages would carry more additional load, and the bearing life would also be shortened. Any angular error would cause noise.
Paired Mounting
In many situations, single row angular contact ball bearbines are supplied to customers in pairs or multi-arrangement.
Our paired mounting angular contact ball bearing arranged in pairs are specially processed. When bearings are installed abutting each other, any kind of arrangement can help to achieve predetermined inner clearance, pre-load and equally distributed load. No adjustment is needed again.
Angular contact ball bearings in pairs are used in these applications when single angular contact ball bearing load carrying capacity is not enough, when carrying axial load in more than two directions.
There are three ways to arrange angular contact ball bearings: in tandem, back to back and face to face.
When arranged in tandem, the load lines are in parallel. The radial and axial loads are evenly divided between the bearings. The bearing in tandem are only able to carry axial load in one direction.
The load lines of bearings mounted back to back diverge at both sides of bearings and intersect with the bearing axis. Axial loads acting in both directions can be carried, but only by one bearing in each direction. Bearings mounted back to back provide a relatively stiff arrangement which can also bear titling moments. The loads lines of bearings mounted face to face are crossed, the they intersect with axis. Face to face arranged bearings could carry the axial load in both directions, but,only by one bearing in each direction. Their rigidity is lower than the bearings mounted back to back, which cannot bear titling moments.
Cage
Cages of angular contact ball bearings supplied by us are pressed steel cages, machined solid cages, special glass fiber reinforced polyamide 66 cages, etc. Machined solid cages are mainly made of brass, bronze, various light alloys and phenolic resin.. Angular contact ball bearings are used as high speed spindle bearings; cages are usually made of phenolic resin. Cages of different material are identified by suffix.
We also provide other angular contact ball bearings:
7000 C/DF series7000 AC/DF series7200 C/DF series7200 AC/DF series7200 B/DF series7300 C/DF series7300 AC/DF seriesOther kinds of bearings
Angular Contact Ball Bearing Thrust Ball Bearing Linear Motion Ball Bearing
Deep groove ball bearing Cylindrical roller bearing Spherical roller bearing
Self-aligning ball bearing Needle roller ball bearing Thrust roller bearing
Tapered roller bearing Insert Bearing
7300 B/DF series Face to Face Duplex Angular contact ball bearings