Today , ERIC BEARING LIMITED share one article to let us know what is the environmental requirements when use the SKF bearings . We have enough stock for SKF 6004-2ZVA208 and SKF 6209 -2Z bearings , if you interested , pls do free to contact us .
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According to the use location, use conditions and environmental conditions, select the size, accuracy, and suitable SKF bearing is the premise to ensure the bearing life and feasibility.
Application area
Tapered roller bearings are suitable for combined radial and axial loads that are mainly radial loads. They are usually paired with two sets of bearings. They are mainly used in front and rear hubs, active tapered gears, differentials, and reducers of automobiles. Transmission parts.
Allowable speed
Under the environment of correct installation and good lubrication, it is allowed to be 0.3-0.5 times of the SKF bearing limit speed. Under normal circumstances, 0.2 times the limit speed is very suitable.
Allowable tilt angle
Tapered roller bearings generally do not allow the shaft to be tilted relative to the housing bore. If it is tilted, it should not exceed 2 ′.
Allowable temperature
Under normal load conditions, and the lubricant has high temperature resistance and sufficient lubrication, SKF bearings are generally allowed to work at an ambient temperature of -30 ℃ -150 ℃.
Analysis of SKF bearing disassembly skills
SKF bearings should be disassembled as carefully as they were installed. Be careful not to damage the SKF bearing and all parts, especially the interference fit of the SKF bearing disassembly, the operation is difficult. Therefore, in the design stage, it is necessary to consider the ease of disassembly in advance, and it is also very important to design and make disassembly tools as needed. When disassembling, research the disassembling method and sequence according to the drawings, and investigate the matching conditions of SKF bearings to obtain foolproof operation.
To disassemble the interference fit outer ring, set several screws for the outer ring to squeeze the screw in advance on the circumference of the housing, and tighten the screw equally on one side while removing. These screw holes are usually covered with blind plugs, tapered roller bearings, and other separate SKF bearings. Several cutouts are provided on the housing shoulders. Use a block to remove with a press or gently tap to remove.
The disassembly of the inner ring can be pulled out with a pressure machine very new and simple. At this time, pay attention to let the inner ring bear its pulling force.
The hydraulic method is used to disassemble the inner ring of large SKF bearings. Apply oil pressure through the oil hole provided on the shaft to make it easy to pull. SKF bearings with a large width are used in combination with the drawing method for disassembly.
Disassemble the relatively small SKF bearing with adapter sleeve, support the inner ring with a block fastened on the shaft, turn the nut back several times, and use the block to beat with a hammer to remove.
Large-scale SKF bearings are easier to disassemble by hydraulic pressure. Oil is pressurized in the oil hole on the tapered hole shaft to expand the inner ring. During operation, the SKF bearing may suddenly come out. it is good.
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