Double Row Bearing Deep Groove Ball Bearing
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- 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: What are the commonly used journal bearings?
- To make the sliding bearing well lubricated, an oil hole and oil groove shall be set on the sodium tile or journal. The oil holes shall be located at the least pressure of the oil film; the oil groove shall be raised in the region where the bearing is not stressed or the film pressure is small; the expansion of the oil tank is required to facilitate the oil supply, and the bearing capacity of the bearing will not be reduced.
- Q: In what circumstances, lubricant viscosity should be smaller?
- In low load, high speed and low temperature conditions, choose low viscosity lubricating oil. In heavy load, low speed and high temperature conditions, the choice of high viscosity lubricating oil or extreme pressure and anti-wear additives lubricants.Lubricating oil is the main lubricant. The main physical performance index of lubricating oil is viscosity, which indicates the internal friction properties of liquid flow, and the greater the viscosity, the worse its flowability. Another physical property of lubricating oil is oiliness, which represents the adsorption ability of lubricating oil on the metal surface. The greater the oil, the stronger the metal adsorption capacity, the more likely the oil film to form. The selection of lubricating oil should take into account the bearing capacity, journal speed, lubrication mode, surface roughness of sliding bearing, and other factors.General principles are as follows:1, in the light load conditions, in order to reduce friction power consumption, low viscosity lubricants can be chosen;2. under heavy load or impact loading conditions, oily and big viscosity lubricating oil should be used to form a stable lubricating film;3. static or dynamic sliding bearings can choose a small viscosity of the lubricating oil; 4. rough surface or without running surface should choose high viscosity lubricants.
- Q: Can hydraulic oil be used in motor sliding bearings?
- Do not ask where is the unit where I can, even the fan bearing box reducer is used in hydraulic oil, hydraulic oil because contains anti-wear and lubricating composition, but remember not and mixed with other lubricants
- Q: Factors determining the stability of plain bearings
- The function of lubricant is to reduce friction, reducing wear, cooling and vibration absorption, a lubricant liquid solid and gas and semi solid, liquid lubricant called lubricating oil, semi solid, at room temperature in oil paste is grease. Lubricating oil is the main lubricant. The main physical performance index of lubricating oil is viscosity, which indicates the internal friction properties of liquid flow, and the greater the viscosity, the worse its flowability. Another physical property of lubricating oil is oiliness, which represents the adsorption ability of lubricating oil on the metal surface. The greater the oil, the stronger the metal adsorption capacity, the more likely the oil film to form. The selection of lubricating oil should take into account the bearing capacity, journal speed, lubrication mode, surface roughness of sliding bearing, and other factors. The general principles are as follows: 1. in the high speed and light load working conditions, in order to reduce the friction loss of lubricating oil viscosity can be selected;
- Q: There are sliding bearings and rolling bearings in motor bearings. What's the difference between them?
- Economic difference, it is not very important to choose sliding bearings, I think so.
- Q: where is it used in general, and some concrete examples are given
- The self-aligning ball bearings, used in the shaft and the bearing chamber is not concentric, many mechanical equipment are used, but the standard load is relatively small, if the load is large, recommend the use of self-aligning roller bearing, I hope to help you
- 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: I mean, how do you install the large equipment? Can you tell me in detail?
- 1, the sliding bearing assembly method:(1) the first to remove the sliding bearing assembly for sealing the protective rust agent (closed bearing installation, except) can use hydraulic method of bearing inner ring applied no impact loads will be fitted to the shaft bearing qualified bearing block, if there are no conditions can also use Pratia gently on bearing the inner ring is mounted, ordinary bearings allow color thermal sleeve method, but the heating temperature not exceeding 100 degrees, and the bearing should be relatively uniform for heating.(2) the sliding bearing assembly and bearing must be on the same plane, the same line, the same axis, the bearing must be parallel mutually in the same plane parallel to each other, and the corrected assembly gap, the parallelism and beat meets the design requirements, ensure the smooth sliding equipment.
- Q: Are magnetic drive pumps static and sliding bearings a thing?
- 4. thrust bearing (understand) (1) thrust bearing fixed and tilting. (2) the thrust surface of thrust bearing can use the end surface of the shaft, or can make a convex shoulder or thrust the disc in the middle of the shaft. (two) the types and characteristics of rolling bearings; 1. classification of rolling bearings according to the shape of the rolling body is divided into: ball bearings, roller bearings. 2. characteristics of rolling bearings (1) advantages: compared with plain bearings, rolling bearings have the advantages of small friction resistance, quick starting, high efficiency, simple lubrication and easy replacement. (2) disadvantages: poor shock resistance, noise at high speed and long service life, as opposed to liquid lubricated sliding bearings.This answer is recommended by the questioner
- Q: What are the technical requirements and precautions for the assembly of plain bearings?
- When the machine does not work, the axle is resting on the bearing and exerts pressure on the bearing.
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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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