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Angular Contact Ball Bearing 7308AC Excavator Bearing 7308AC With Size 40*90*23mm
Introduction of angular contact ball bearings
Angular Contact Ball bearing can bear both radial and axial loads. It can work at high speed. The larger the contact Angle, the higher the axial bearing capacity. The contact Angle is the Angle between the contact point line of the ball and the raceway in the radial plane and the vertical line of the bearing axis. High precision and high speed bearings usually have a 15 degree contact Angle. The contact Angle increases under the action of axial force
Features for Excavator bearings :
1) Excavator bearing specialized angular ball bearing are used for the application of excavator machinery.
2) Excavator angular contact bearing has big contact angle(40 degree), so can undertake big axial load .
3) Excavator bearing can carry heavier load capacity than the same size bearings because it has
4) High-accuracy, low-noise, long-life and this kink of bearing are widely used in excavator.
Angular Contact Bearings Model
angular contact ball bearings
Principal dimensions | Basic load ratings | Speed ratings | Designation | ||||
| dynamic | static | Reference speed | Limiting speed |
| ||
d[mm] | D[mm] | B[mm] | C[kN] | C0[kN] | [r/min] | [r/min] |
|
10 | 30 | 9 | 7.02 | 3.35 | 30 000 | 30 000 | 7200 BECBP |
10 | 30 | 9 | 7.02 | 3.35 | 30 000 | 30 000 | 7200 BEP |
12 | 32 | 10 | 7.61 | 3.8 | 28 000 | 26 000 | 7201 BECBP |
12 | 32 | 10 | 7.61 | 3.8 | 28 000 | 26 000 | 7201 BEGAP |
12 | 32 | 10 | 7.61 | 3.8 | 28 000 | 26 000 | 7201 BEP |
12 | 37 | 12 | 10.6 | 5 | 26 000 | 20 000 | 7301 BE-2RZP |
12 | 37 | 12 | 10.6 | 5 | 26 000 | 24 000 | 7301 BEP |
15 | 35 | 11 | 8.32 | 4.4 | 24 000 | 20 000 | 7202 BE-2RZP |
15 | 35 | 11 | 8.32 | 4.4 | 24 000 | 24 000 | 7202 BEP |
15 | 35 | 11 | 8.8 | 4.65 | 24 000 | 26 000 | 7202 BECBP |
15 | 35 | 11 | 8.8 | 4.65 | 24 000 | 26 000 | 7202 BEGAP |
15 | 35 | 11 | 8.8 | 4.65 | 24 000 | 26 000 | 7202 BEGBP |
15 | 35 | 11 | 10.2 | 5.2 | 26 000 | 40 000 | 7202 ACCBM |
15 | 42 | 13 | 13 | 6.7 | 22 000 | 17 000 | 7302 BE-2RZP |
15 | 42 | 13 | 13 | 6.7 | 22 000 | 20 000 | 7302 BECBP |
15 | 42 | 13 | 13 | 6.7 | 22 000 | 20 000 | 7302 BEP |
17 | 40 | 12 | 10.4 | 5.5 | 20 000 | 20 000 | 7203 BEY |
17 | 40 | 12 | 10.4 | 5.5 | 22 000 | 17 000 | 7203 BE-2RZP |
17 | 40 | 12 | 10.4 | 5.5 | 22 000 | 20 000 | 7203 BEP |
17 | 40 | 12 | 11 | 5.85 | 22 000 | 22 000 | 7203 BECBP |
17 | 40 | 12 | 11 | 5.85 | 22 000 | 22 000 | 7203 BEGAP |
17 | 40 | 12 | 11 | 5.85 | 22 000 | 28 000 | 7203 BECBM |
17 | 40 | 12 | 12.5 | 6.7 | 24 000 | 34 000 | 7203 ACCBM |
17 | 47 | 14 | 15.9 | 8.3 | 20 000 | 15 000 | 7303 BE-2RZP |
17 | 47 | 14 | 15.9 | 8.3 | 20 000 | 19 000 | 7303 BECBP |
17 | 47 | 14 | 15.9 | 8.3 | 20 000 | 19 000 | 7303 BEGAP |
17 | 47 | 14 | 15.9 | 8.3 | 20 000 | 19 000 | 7303 BEP |
20 | 47 | 14 | 13.3 | 7.65 | 19 000 | 14 000 | 7204 BE-2RZP |
20 | 47 | 14 | 13.3 | 7.65 | 19 000 | 18 000 | 7204 BEP |
20 | 47 | 14 | 14.3 | 8.15 | 19 000 | 19 000 | 7204 BECBJ |
Single row angular contact ball bearings: machine tool spindle, high frequency motor, combustion steam turbine, centrifugal separator, small car front wheel, differential pinion shaft, booster pump, drilling platform, food machinery, dividing head, welding machine, low noise type cooling tower, mechanical and electrical equipment, coating equipment, machine tool slot plate, arc welding machine
Double row angular contact ball bearing, oil pump, roots blower, air compressor, all kinds of transmission, fuel injection pump, printing machinery, planetary reducer, extraction equipment, cycloid reducer, food packaging machinery, electric welding machine, electric, square box, gravity type spray gun, wire stripping machine, axle shaft equipment, chemical machinery, testing analysis
Angular contact ball bearings Machine tools require screw drives that can position a work piece or machine component quickly, efficiently, and precisely. To meet these requirements, screw drives can be supported at both ends by SKF super-precision angular contact thrust ball bearings. The bearings provide a high degree of axial stiffness, high axial load carrying capacity, accommodate high speeds and rapid accelerations, and offer very high running accuracy. Angular contact ball bearings for screw drives are well suited for screw drive applications, but are also beneficial in other applications, where reliable radial and axial support is required, together with extremely precise axial guidance of the shaft.
