News
May 2011
D&E Trading
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Page updated
April 2011 |
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D&E Trading AB
Phone: +468-4474050
Fax: +468-4474060
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Quality and service |
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Slide Bearing Types
Rolled Bronze
Turned Bronze
Turned Bronze with
Solid Lubricant
Oil-Bronze
Multilayer
Compound
Steel
Composite
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WB802
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Dimensions Table:
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Examples of typical uses
• Forestry Machinery
• Agricultural Machinery
• Trucks
• Dumpers
• Truck-mounted cranes
• Truck platforms |
Advantages
• Can tolerate high loads and blows
• Works well, even in dirty environments
• The lubrication depots, which go all the way through the bearing surface, give excellent lubricating characteristics
• Good thermal dissipation
• A broad range of dimensions is held in stock
• Extends the interval between lubrications by 6-8 times, compared to traditional slide bearings
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Characteristics
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Description
The WB802 bearing, with or without flange, is intended for radial and axial movements. The bearing is rolled from a cold-worked bronze alloy, which gives the bearing exceptional material characteristics.
The flange design ensures that axial loading can be also supported. The bearing is provided with holes, which go all the way through, and are laid out in a special way over the complete surface of the bearing surface. These act as lubrication reservoirs, which rapidly build up a lubricating film at start-up and thereby reduce the starting friction. The lubrication depots also significantly extend the interval between lubrications.
The WB802 material properties, together with the rolling and calibration procedure, make this type of bearing especially suitable in constructions where relatively high loads and slow movements occur.
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Lubrication
Additional lubrication should be introduced through the shaft openings or radially via the housing. All the normal lubricating greases can be used. Lubricating grease with graphite or molybdenum disulphide additives can also be suitable. |
Tolerance
Bearings pressed in to a H7 housing give a tolerance of H9. The recommended shaft tolerance is IT7 or IT8, tolerance position e or f. |
Special Designs
Only larger series.
• Other tolerance positions
• Internal and external lubricating grooves
• Hardness 150-160 HB
• With in-built seals
• Drawing details
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Technical Data |
Material |
Homogenous bronze
Cu 91,3 %
Sn 8,5 %
Pb 0,2 % |
Yield Point Rp0,2 |
approx. 300 N/mm² |
Tensile strength Rm |
approx. 450 N/mm² |
Hardness
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approx. 125-150 HB |
Friction |
0,08-0,25 |
Maximum speed
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2,5 m/s |
Allowed temperature range
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-100/+200 °C |
Loading Capacity
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Speed
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Maximum bearing load |
0 m/s |
280 N/mm² |
0,01m/s |
80 - 120 N/mm² |
2,0 m/s |
30 - 40 N/mm² |
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Rolled Bronze
WB800/WB900
WF-WB800/WF-WB900
WB802
WF-WB802
WB802-T
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Rolled Bronze
WB700
WF-WB700
WB702
WF-WB702
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CAD-files from