advanced search self-aligning ball bearing 2208
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advanced search self-aligning ball bearing 2208
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Advanced search self-aligning ball bearing 2208
Double row self-aligning ball bearings have a sphere raceway in the outer ring and a double raceway in the inner ring. This feature give the bearings their self-aligning property, permitting angular misalignment of the shaft relative to the housing. They are therefore particularly suitable for applications where misalignment can arise from errors in mounting or from shaft deflection.
Double row self-aligning ball bearings are mainly used to carry radial loads and light axial loads, but cann't carry pure axial loads
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: Sliding bearings, according to their friction state, why bearings and what?
- 2. boundary frictionThe boundary of oil film thickness is less than 1 microns to two metal surface is completely separated from each other, when the movement of two metal surfaces, metal surface asperities will still considerable rubbing cut, this friction is called boundary friction. The boundary friction friction laws, basically the same with the dry friction, the friction coefficient decreases, f = 0.1 ~ 0.3. Although the boundary friction can not completely avoid the metal surface wear, but it can greatly reduce wear and tear.3. fluid frictionWhen the two friction surfaces have sufficient lubricating oil, the oil film thickness is large enough to form a two surface asperity completely separated, the friction between the molecules of the fluid inside only when relative motion is called fluid friction, the oil film is formed under certain high pressure oil film small load, prevent the direct contact between two friction surfaces, so the minimal friction coefficient (F = 0.001 ~ 0.01), significantly reduces friction and wear.
- Q: What are the parameters of maximum bearing capacity factor Cp of plain bearings?
- Note: only for a specific bearing, the carrying capacity coefficient is large, its carrying capacity is strong, that is, Cp and F is proportional to the relationship; when the working conditions and parameters are not the same, we can not make such a simple judgment.
- Q: There are sliding bearings and rolling bearings in motor bearings. What's the difference between them?
- Sliding bearings are small power, rolling bearings are generally used in high-power motors
- Q: What are the requirements for the material performance of plain bearings?
- When the machine does not work, the axle is resting on the bearing and exerts pressure on the bearing. When the shaft rotates at a high speed, the shaft to the bearing with periodically varying load, sometimes accompanied by shock.
- Q: What are the major damage forms of plain bearings?
- A: the main types of damage to the pulley bearings are: 1, glued bearings overheating, excessive load, improper operation or temperature control system failure.2. Fatigue failure caused by unbalanced vibration, shaft deflection and edge load, overload and so on, lead to fatigue rupture of babbit. Bearing repair and installation quality is not high.3, because the grease dirt nap of large particles into the bearing gap, and embedded in the bearing bushings, bearing and shaft neck (or thrust plate) contact, hard callus formation on the surface, it will seriously scratch the shaft, bearing oil picking attention clean, especially in maintenance we should pay attention to, metal scraps or dirt and scratches due to wear clean lubricating oil mixed with impurities, dirt and foreign matter. The repair method is wrong and the installation is wrong. Improper use and maintenance, poor quality control.
- Q: The commonly used sliding bearing materials are divided into metal materials and which two materials
- Metal materials and non-metallic materials, non-metallic materials, and engineering plastics, carbon graphite, rubber, wood, metal materials, sub bearing alloy, copper alloy, aluminum base bearing alloy, cast iron, porous metal materials
- Q: How to determine the axial clearance and expansion clearance of plain bearings?
- The 2. clearance fit is the fit of the clearance (including the minimum clearance equal to zero) when the hole is in alignment with the shaft, where the tolerance of the hole is above the tolerance band of the shaft. The function of gap is to store oil and compensate various errors, and the magnitude of which affects the relative movement of the hole and axis. The clearance fit is mainly used for the movable connection between the holes and shafts, such as the connection of the sliding bearings and shafts.
- Q: I recently learned some knowledge of rolling bearings and journal bearings. Questions to ask the experts:1, sliding bearings for high speed, heavy load, then in reality, how many high speed, large load sliding bearings?2, in addition to the speed and load, rolling bearings and sliding bearings at the choice of, there are other considerations? Such as price.3, rolling bearings can withstand the maximum speed is generally how much? Such as 7000RPM or 10000RPM.Relatively superficial problem, may not ask the key point, but also ask you to forgive me, thank you!
- For example, where oil lubrication or grease lubrication is not possible.Scrolling high speed depends on the selected bearings.
- Q: What are the common sliding bearing bushing materials? What are the characteristics of each?
- 5) bearing alloy (Babbitt). It is tin, lead, copper, antimony and other alloys, with good wear resistance, but low strength, can not be made into separate bearings, usually cast in bronze, cast iron, steel and other bearing matrix.6) three layer load bearing material. Commonly used in two kinds: polypropylene, polypropylene, steel body composite materials and POM steel body composite.
- Q: What are the main structures of radial plain bearings? What are their respective features?
- Radial sliding bearings are split type, integral type, flange type and self position typeSplit bearing bearing cover can be opened, for loading shaft neck
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advanced search self-aligning ball bearing 2208
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 100000 set/month
OKorder Service Pledge
OKorder Financial Service
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