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The DIN 1494 / ISO 3547 Sliding Wrapped Flange Sleeve Bushing is a specialized component designed to provide a smooth and reliable sliding interface between rotating or reciprocating parts in various industrial applications. This type of bushing is characterized by its wrapped flange design, which offers enhanced stability and durability compared to traditional bushings.
The DIN 1494 and ISO 3547 standards define the technical specifications, dimensions, and performance requirements for this type of bushing. These standards ensure that the bushings meet industry-recognized quality standards and are suitable for use in a wide range of operating conditions.
The sliding wrapped flange sleeve bushing typically consists of a metal sleeve with a polymer or composite lining material. The lining material is wrapped around the sleeve and secured in place with the flange, creating a smooth and durable sliding surface. This design allows for reduced friction and wear, extending the service life of the bushing and reducing the need for maintenance.
Applications for DIN 1494 / ISO 3547 Sliding Wrapped Flange Sleeve Bushings are diverse and include machinery, automotive components, hydraulic systems, and other industrial equipment. They are often used in high-load and high-speed applications where reliable and efficient sliding performance is critical.
When selecting a DIN 1494 / ISO 3547 Sliding Wrapped Flange Sleeve Bushing, it is important to consider the specific operating conditions and requirements of the application. Factors such as load, speed, temperature, and the type of lubrication used should be taken into account to ensure that the bushing is suitable for the intended application.
Proper installation and maintenance of the bushing are also crucial to ensure its optimal performance. It is important to follow the manufacturer's instructions carefully and regularly inspect the bushing for wear or damage. Timely replacement of worn-out bushings can help prevent costly downtime and equipment failures.
| 1,Inside diameter of the bushing | |||
| Generally, the inside diameter of the bushing depends on the diameter of its mating axis. | |||
| 2,Length of the bushing | |||
| The length of the bushing depends on the size of the pressure-shouldering surface. The longer the bushing, the less pressure at the surface, for the longer | |||
| bushing, the load on the bushing is relatively lessened. But simultaneously, it may result in deviation contact or lower cooling efficiency and thus shorten the | |||
| service life of the bushing. On the contrary, if the length of the bushing is too short, lubricating grease may quickly flow out of the bushing. Therefore, it hardly | |||
| forms a grease film and capability of the bushing is accordingly debased. | |||
| A comparison of L/d's effect on the bushings, especially oil lubricating bushings | |||
| Short bushing ( d>L) | Comparison items | Long bushing ( d<L) | |
| Small | Force on the oil film | Great | |
| Strong | Cooling ability | Weak | |
| Can not be too high | Surface pressure | Can be high | |
| High | Safety against beating deviation | Low | |
| Weak | Bushing rigidity | Strong | |
| Week | Shock absorbing ability | Strong | |
| Small | Space | Large | |
| 3,Bushing thickness | |||
| The main advantage of standard composite self-lubricating bushings rest with their thin wall thickness. Standard thickness can be 0.5mm2, 0.75mm2,1.0mm2, | |||
| 1.5mm2, 2.0mm2, 2.5mm2. | |||
| In thickness design of the non-standard gliding bushing, the designer could consult the following proportion of SB and D. | |||
| A) For thin wall thickness gliding metallic bushing, proportion between SB and D equals to 0.03 ~ 0.06. | |||
| B) For thin wall thickness gliding metallic bushing, proportion between SB and D equals to 0.08 ~ 0.12 | |||
| C) For plastic gliding bushing, proportion between SB and D equals to 0.1 ~ 0.12 | |||
| 4,Bushing Chamfer | |||
| In order to make fixing easier and avoid deviation load, the bushing must be inner and outer chamfered in the direction of its length. Dimension of the | |||
| chamfer are showing in the following form. | |||
| Wall thickness | Out Chamfer Dimension | Inner Chamfer Dimension | |
| <0.5 | Burr polished | Burr polished | |
| 0.75 | 0.5 ± 0.3 x 20° | 0.3+0.2 x 45° | |
| 1.0 | 0.6 ± 0.3 x 20° | 0.3+0.2 x 45° | |
| 1.5 | 0.6 ± 0.3 x 20° | 0.4+0.2 x 45° | |
| 2.0 | 1.2 ±0.3x20° | 0.6+0.2 x 45° | |
| 2.5 | 1.8 ±0.3x20° | 0.6+0.2 x 45° |
1, no oil lubrication or less oil lubrication, can not be used for
refueling or difficult to refuel the place, can be used in the
maintenance or less maintenance.
2, wear resistance, friction coefficient, long service life.
3, there is the right amount of elastic-plastic, can stress
distribution in a wide contact surface, improve the bearing
capacity.
4, static and dynamic friction coefficient is similar to the crawl
at low speed to eliminate, so as to ensure the accuracy of
mechanical work.
5, can reduce mechanical vibration, reduce noise, prevent
pollution, improve working conditions.
6, in the course of operation, can form a transfer film, play a
role in protecting the grinding shaft, no bite axis phenomenon.
7, for the grinding shaft hardness requirements, are low, not
quenched and tempered shaft can be used, thereby reducing the
processing of the relevant parts difficult.
Concrete Pumps Plain Bearings Gleitlager
VSB-10 Self-Lubricating Multilayer Composite Bushing
1. PTFE/Fibre mixture thickness 0.01~0.03mm. It is the contact
surface for the rotating shaft. Minute parties of the PTFE layer
and the sintered bronze material combine to create a solid
lubricant film, which coats the shaft.
2. Sintered bronze powder thickness 0.20*0.35mm, A special
composition of powdered copper is thermally fused to the steel
backing. This contact layer acts as an anchor for the PTFE layer
and conducts the thermal build-up away from the bearing surfaces.
3. Low-carbon steel backing. Setting the foundation of the
bushings, the steel back provides exceptional stability, load
carrying and heat dissipation characteristics.
Carbon Steel + Copper Powder + (PTFE + Pb + Filler)
· Metal-Polymer Composite Self-lubricating Bushing Material
· Steel Back + Porous Bronze Sinter +
· PTFE + Lead
 | Sliding layer |
| OPERATING PERFORMANCE | |
| Dry | Very Good |
| Oil-lubricated | Good |
| Grease lubricated | Fair |
| Water lubricated | Fair |
| Process fluid lubricated | Fair |
| Max. load | Static | 250N/mm2 |
| Dynamic | 140N/mm2 | |
| Max. speed | Dry | 2m/s |
| Lubrication | >2m/s | |
| Max. PV (Dry) | Short-time | 3.6N/mm2*·m/s |
| Continuous | 1.8N/mm2*·m/s | |
| Temp. | -195℃~+280℃ | |
| Friction coefficient | 0.03~0.20 | |
| Thermal conductivity | 42W (m·k)-1 | |
| Coefficient of thermal expansion | 11*10-6k-1 | |
Bearing forms available in standard dimensions
· Cylindrical bushes
· Flanged bushes
· Thrust washers
· Flanged washers
· Sliding plates
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Bushings, Lubricated Bearings, Composite Bearings, Metal Bearings, Compressor Bearings, Metal-polymer, Filament Wound, Plain Bearings, Flange Bearings, Polymer Bearings, Flange Bushings, Pump Bearings, Flanged Bushes, Thrust Plates, Industrial Bearings
Widely used in hydraulic and pneumatic industries, forging machine tool industry, plastics machinery industry, lifting and handling machinery, port machinery, office, fitness machinery, textile machinery, food packaging, filling machinery, chemical machinery, printing and packaging, paper making machinery, automobiles, railways Steam locomotives, shipbuilding industries, presses, metallurgical machinery, construction machinery, etc.
