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6204KA/C3 Bearing |
11,29,2016 |
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6204KA Bearing |
11,29,2016 |
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6204/C4 Bearing |
11,29,2016 |
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6204/C3 Bearing |
11,29,2016 |
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6204 Bearing |
11,29,2016 |
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6204 Bearing |
11,29,2016 |
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Bearing 204TN-Z |
11,28,2016 |
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Bearing 204KA-Z |
11,28,2016 |
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Bearing 0204 |
11,28,2016 |
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Bearing 180204 |
11,28,2016 |
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| News details |
Operating Temperature of Rolling Bearings and Related
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| Time：2016.10.29 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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First, the negative impact of increased working temperature of rolling bearings
Bearing expansion and precision loss: This expansion is irregular, with the release of stress; bearing manufacturing, in particular, precision bearings to go through a number of additional tempering, is to release the stress to ensure accuracy.
Second, the adverse effects of tempering temperature increase
1, the material hardness decreased, decreased bearing capacity, wear resistance decreased, but can increase toughness and improve the impact resistance of bearings.
2, the maximum operating temperature of 350 ℃ (GCr15) is only suitable for short-term high-temperature work; when the working temperature is higher than 350 ℃ or longer time at 250 ℃ above the bearing should be made of high temperature bearing steel material (GCr4Mo4V, etc.).
Third, the bearing parts in the normal working conditions of the operating temperature
1, car steel cage maximum operating temperature of 300 ℃
2, brass cage is not suitable for more than 250 ℃
3, nylon cage below -40 ℃ can not be used
4, Dingqing rubber seals Operating temperature -40 ℃ ~ +100 ℃; more than 100 ℃ to 300 ℃ can be used when the fluorine rubber, but it should be noted that fluorine rubber at high temperature volatile volatile harmful gases.
Fourth, the design of the bearing housing and shaft and bearing with the choice
1, the bearing seat temperature is higher than the bearing, the outer ring and seat hole design should be chosen tight;
Bearing temperature is lower than the bearing, the outer ring and seat hole design should be chosen partial loose;
2, the shaft temperature is higher than the bearing, the inner ring and shaft design with partial loose;
Shaft temperature is lower than the bearing, the inner ring and shaft design is tight;
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