Double Row Bearing Deep Groove Ball Bearing
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- Loading Port:
- Shanghai
- Payment Terms:
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- Min Order Qty:
- 500 pc
- Supply Capability:
- 200000 pc/month
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4312 ZZ double row bearing deep groove ball bearing
Deep groove ball bearings are particularly versatile. They are simple in design, non-separable, suitable for high and very high speeds and are robust in operation, requiring little maintenance. Because deep groove ball bearings are the most widely used bearing type, they are available from TIANHE in many designs, variants and sizes.
In addition to the bearings presented in this section, deep groove ball bearings for special applications are shown under Engineered products.
Material
1.PTFE with fibre 0.01~0.03mm
2.Porous bronze 0.2~0.3mm
3.Steel backing 0.7~2.3mm
4.Tin-plating 0.005mm or copper plating 0.008mm
Technical
Load capacity 140N/mm2
Temperature -195°C ~ +280°C
Speed limit 5m/s
Friction coef(u) 0.04~0.20
PV Limit(Dry) 3.6N/mm2 .m/s
Application
1.PTFE and fibre can protect the shaft while in operation.
2.It is suitable for the machine required harmless to people because
of Lead-free.
3.Goodload capacity and anti-wear.
4.Bronze and steel have good thermal conductivity.
5.Anti-corrosion because of surface plating.
6.It is widely used in general machines,and suitable for food machine,pharmaceutical
machine,tobacco machine etc.It will subsitute SF-1 series bushings in future because of environment protection.
- Q:National standard for plain bearings
- Multilayer metal bearing materials bearing sliding bearing test of 24 GB/T23894-2009 copper alloy inlaid solid lubrication bearing 25 GB/T23892.2-2009 sliding bearings under steady-state conditions of fluid dynamic pressure of tilting pad thrust bearings - Part second: tilting pad thrust bearing fluid check calculation function 26 GB/T23892.1-2009 sliding bearings under steady-state conditions of dynamic pressure of tilting pad thrust bearings - Part first: tilting pad thrust the bearing calculation of 27 GB/T2 3892.3-2009 sliding bearings under steady-state conditions of fluid dynamic pressure of tilting pad thrust bearings - Part third: Calculation of tilting pad thrust bearings allowableness fluid 28 GB/T23891.1-2009 sliding bearings under steady-state conditions of dynamic pressure thrust bearing thrust bearing part first: computational fluid 29 GB/ T23891.2-2009 sliding bearings under steady-state conditions of dynamic pressure thrust the second part: bearing thrust bearing calculation function 30 GB/T23891.
- Q:What are the two types of friction lubrication in plain bearings?
- (2) the bearing material and the bush structure have a great influence on the performance of the sliding bearing. The bearing material and the bush structure should be selected by considering various factors.
- Q:What copper is used to produce plain bearings for machine tools?
- Self lubrication copper sleeve sliding bearing for machine tool, which is based on high strength copper alloy (CuZn25Al5, CuZn24Al6Fe3Mn4) as the basic material,
- Q:What are the structural types of radial and thrust dynamic journal bearings?
- There are many kinds of sliding bearings, which can be divided into two kinds of radial (Xiang Xin) sliding bearing and thrust (axial) sliding bearing according to the direction of bearing load.Sliding bearings can be divided into integral and partial and integral type sliding bearings with bolts connected with the frame. The bearing seat hole pressure, the bearing seat is arranged on the top of an oil sleeve on the oil hole. The integral sliding bearing is simple in structure, but the bearing clearance can not be adjusted when the working surface of the bearing is too large. The journal can only be loaded from the end. Split sliding bearings are mainly composed of bearing housings, bearing housings, split upper and lower bearings.
- Q:What are the common sliding bearing bushing materials? What are the characteristics of each?
- 1) grey cast iron, which is used in low speed, light load and no impact load, and is commonly used in HT15-33 and HT20-40.2) copper base bearing alloy. Commonly used ZQSn10-1 bronze and ZQA19-4 bronze, suitable for medium speed, high turbidity and impact load conditions.
- Q:What is the transmission efficiency of plain bearings and rolling bearings?
- The oil film also has a certain vibration absorption capacity. But the starting friction resistance is larger.The coefficient of friction of rolling bearings is smaller than that of sliding bearings, and the transmission efficiency is high.
- Q:What are the conditions for forming sliding bearings and dynamic oil film lubrication?
- Is it hydrodynamic lubrication?If this is the case, do not need any conditions, there is oil on itBoundary lubrication, mixed lubrication, hydrodynamic lubrication. Whether the lubricant is full of bearings will cause the above 3 cases
- Q:while the automobile wheel shafts and reducer gears use rolling bearings?
- The lubrication of the crankshaft of an internal combustion engine is pressure type. It has lubricating grooves on its bearings, which can further lubricate the crankshaft. But the automobile wheel shaft and the reduction gearbox gear's rotational speed is low, therefore uses the rolling bearing. Still wantThe bearing capacity of rolling bearing is strong.
- Q:What is Bush? What do you mean by scraping the Bush? How to operate?
- 1., rolling bearings are easy to use and maintain, reliable work, good starting performance, high bearing capacity at medium speed. Compared with plain bearings, rolling bearings have larger radial sizes, less vibration damping capacity, low speed and low noise.2., the part of the shaft supported by the bearing is called the journal, and the part matching the journal is called the bush. It is made up of a whole cylindrical Bush called a bushing
- Q:Which life is longer, rolling bearings or plain bearings?
- Compared with plain bearings, rolling bearings have small coefficient of friction, high accuracy, low wear and long service life
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Double Row Bearing Deep Groove Ball Bearing
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 500 pc
- Supply Capability:
- 200000 pc/month
OKorder Service Pledge
OKorder Financial Service
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