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 Tytuł: Solid bronze bushing with graphite lubricating China Factory
PostNapisane: Pt mar 09, 2018 3:28 am 

Dołączył(a): Wt lut 16, 2016 7:11 am
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Why bearings or bearing prior to installation needs to be heated
Induction heating is an advanced, rapid, controlled heating method, compared to the traditional heating stove heating, oil bath heating, heating torch easy to produce soot, oil waste and harmful to human health, induction heating has a safe and environmentally friendly advantage.

In mounting a round linear guide rail or cyclic workpiece mounting force required increases with self-lubricating shaft Vaga bearing size increases rapidly. Because of the mounting force requirements, larger bearings are not easily onto the shaft or pushed into the bearing housing. Therefore, the bearing or bearing or cyclic or a workpiece before installation needs to be heated. Bearing induction heater can be compared with the transformer, it works to a large number of turns of the primary coil and copper sleeve manufacturers a few turns of the secondary coil mounted on the same core. Input and output voltage ratio is equal to the ratio of the number of turns, and energy security maintenance-free bearings remain unchanged. Thus, the secondary coil to produce a large current at a low voltage condition. For the speed of the card bearing induction heater, the solid bronze bushing with graphite lubricating is a single-turn secondary coil short circuit at lower AC voltage flows at high amperage, thus generating high due to the heat. The yoke and the heater itself remains at ambient temperature. Since this heating method can induce a current, so the bearing will be magnetized. It is important to ensure that the bearing degaussing, so that during operation will not attract metal shavings. All induction heaters have automatic degaussing function. Temperature difference between the bearing and housing depends on the mounting position between the level of interference fit and the bearing size. Under normal circumstances, the temperature is higher than the temperature of the bearing shaft 80 to 90 ℃ (144 Zhi 162 ℉) for installation is sufficient. But we can not let the heating temperature of the bearing exceeds 125 ℃ (257 ℉), because then the bearing material microstructure transition will occur, resulting in changes in diameter or hardness. Local overheating must be avoided, especially not with an open flame heating bearings. When you install a heated bearing to wear clean gloves. The use of lifting (lifting) mechanically easy to install. Push the bearing along the CY-38A ball transf unit,60kg load capacity ,38mm flange steel unit to the mounting position, keep the bearings do not move, pressing firmly until it fit.

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