• Bearing Bearings 7017 Angular contact ball bearings 7017 Angular contact ball bearing System 1
  • Bearing Bearings 7017 Angular contact ball bearings 7017 Angular contact ball bearing System 2
  • Bearing Bearings 7017 Angular contact ball bearings 7017 Angular contact ball bearing System 3
  • Bearing Bearings 7017 Angular contact ball bearings 7017 Angular contact ball bearing System 4
Bearing Bearings 7017 Angular contact ball bearings 7017 Angular contact ball bearing

Bearing Bearings 7017 Angular contact ball bearings 7017 Angular contact ball bearing

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
1000 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 speedLimit   speed
dDBBasic   load rating LubricationRated   loadLubrication
Cr   CorGrease   Oil Cr       CorGrease    Oil
70 Series single angular contact ball bearings
70031735106.7   4.944000   66000 6.4          4.739000   59000
70042042129.6   6.337000   55000  9.2              6.033000   49000
700525471212.9   8.733000   4900012.329000   44000
700630551315.7   11.627000   4200014.9      10.923000   37000
700735621419.3   17.519000   3300010.4      10.319000   33000
700840681519.9   19.118000   3100018.9      18.216000   27000
700945751626.7   25.316000   2700025.4      24.115000   25000
701050801627.6   27.515000   2500026.2      26.214000   23000
701155901836.7   37.113000   2100034.8      35.312000   19000
701260951837.8 13000   2100035.8       38.0   11000   18000
7013651001838.9    42.912000   1900036.8      40.710000   17000
7014701102049.9    55.511000   1800047.2      52.79000     16000
7015751152051.3    59.210000   1700048.5      56.28500     15000
7016801252261.6    70.49000    1600058.3      66.98000     14000
7017851302263.6 8500    1500059.9      71.37500     13000
7018901402466.9 8000    1400063.2      79.77000     12000
7019951452479.1    97.67500    1300074.86500     11000
70201001502481.2   103.37000    1200076.7  6000     10000
70211051602693.9    118.26500    1100088.86000     10000
702211017028110.4   139.86000    10000104.4    132.85700     9000
702412018028112.7   148.76000    10000106.3    141.15700     9000
702613020033144.8   190.85700     9000136.8    181.05000     8000
702814021033148.7   202.65000     8000140.4     192.24600     7500
703015022535168.4   232.54600     7500159.1     220.64000     6500
703216024038189.1   264.54000     6500178.6    251.03800     6000
703417026042205.6   299.33800     6000194.2    284.03300     5300
703618028046229.5   352.13500     5700216.8     334.13000     5000


Q: Why are the bearings on the crankshaft of the engine sliding bearings? So high speed, sliding bearings friction is not great?? Fever will not be great? Please prawns in detail, thank you
The utility model has the advantages of simple structure, low cost, easy lubrication, convenient installation, easy sealing, low noise and high precision.As long as the material clearance, not as you imagine so much wear and tear. In addition, for a precision problem, nor is it suitable for other bearings.
Q: What material is suitable for sliding bearings?
3. low carbon steel provides good load-carrying and heat transfer action. 4. copper / tin electroplated coating 0.002mm makes it better corrosion resistance.
Q: What does "SK195" mean?
Bearing and bearing lining materials are collectively referred to as journal bearing materials. Sliding bearing applications are generally under low speed heavy load conditions, or maintenance and lubrication of the difficult parts of the operation.
Q: What is a sliding bearing alloy?
3, enough plasticity and toughness, higher fatigue strength; 4, good heat resistance grade corrosion resistance; 5, good running in.
Q: What are the aspects of the performance of plain bearing materials?
The material selection of the sliding bearing depends on the form of failure. The main failure modes are wear and fatigue damage of bearings and shafts. The prevention of wear and fatigue damage of bearings and bushings is the key to the selection of bearings and bushings. The main considerations are as follows:Wear resistance and friction reduction;Running in (running fit);Hiding property;Compliance;Strength and plasticity;The heat transfer and good corrosion resistance;The process of economy, etc..
Q: Failure forms of plain bearings, failure forms of plain bearings
Failure modes of plain bearings1. abrasive wear: hard particles - abrasives - grinding shaft and bearing surface;2. scratch: shaft surface, hard outline, peak scraping bearing;
Q: What are the methods of casting plain bearings?
Usually to the metal materials company purchased bearings, bearing bronze (or called Babbitt), many are scrap copper, the use of crucibles, casting sand.
Q: Sliding bearing lubrication, under what circumstances need throttling?
For precision, safety, efficiency, power consumption and other high demand occasions, bearings need to use throttling. For example, nuclear power plants, nuclear pumps, large grinders.Compared to liquid lubrication, the steady-state and dynamic characteristics of gas lubrication are poor, so gas lubrication usually has throttling devices.
Q: What is the relationship between the eccentric e of the sliding bearing and the external load and the bearing speed?
With the increase of the external load, the Z increases and the speed decreases
Q: Why can not the surface roughness of plain bearing surface be too high?
Because the process of start and stop, because of low speed shaft neck and sliding bearing contact friction generated, if the axis roughness is too large, it will increase the friction, easy to wear and sliding shaft bearing, so the shaft neck surface roughness is not too high.

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