The method of installation and disassembly of the bearing shall be determined according to the structure, size and compatibility of the bearing components. The pressure of installation and disassembly should be directly applied to the end face of the tightly fitting gear ring. The pressure cannot be transmitted through the rolling element, because it will cause indentation on the working surface of the bearing, affecting the normal operation of the bearing and even damage the bearing. Bearing cages, seals, dust caps and other parts are easily deformed, and the pressure to install or remove the bearings cannot be applied to these parts.
(1) The inner ring of the bearing is tightly fitted with the shaft, and the outer ring and the housing are loosely fitted. The bearing can be press-fitted on the bearing by a press, and then the shaft is fitted into the housing together with the bearing. A bearing sleeve (copper or soft steel) of a soft metal material is placed on the end face of the bearing. The inner diameter of the fitting sleeve should be slightly larger than the diameter of the journal, and the outer diameter should be smaller than the diameter of the flange of the inner diameter of the bearing to avoid pressing on the cage. A large number of handles can be added to the casing when installing the bearings in large quantities.
When installing the bearing, make the bearing hole and the center line of the shaft coincide. The bearing is not difficult to install relative to the shaft skew, and it can cause indentation, journal bending and even break the inner ring of the bearing.
Where the press is missing or not available, the bearing can be mounted with a mounting sleeve and a small hammer. The hammering force should be evenly transmitted to the entire circumference of the end face of the bearing ring, so the end face of the assembled casing that is hammered should be made spherical.
(2) The bearing outer ring is tightly fitted with the housing hole, and the inner ring and the shaft are loosely fitted, so that the bearing can be pressed into the housing first, and the outer diameter of the assembly sleeve should be slightly smaller than the diameter of the housing hole.
(3) The inner ring of the bearing and the shaft, the outer ring and the housing hole are tightly matched, and the end surface of the assembly sleeve should be made into a ring that can simultaneously press the end surface of the inner ring of the bearing, or a disc and an assembly sleeve can be used to make The pressure is simultaneously transmitted to the inner and outer rings, and the bearing is pressed into the shaft and the housing. This type of mounting method is particularly suitable for the installation of centripetal spherical bearings that can be self-aligning.
(4) Heating installation, the force required to install the bearing is related to the bearing size and the amount of interference. For medium and large bearings with large interference, the hot charging method is commonly used. Before the hot loading, put the bearing or the separable bearing ring into the fuel tank or special heater and heat it evenly to 80~100 °C (not exceeding 100 °C).
Hot-mounted bearings require skilled operating skills. When the bearing is removed from the heating tank or the heater, immediately wipe off the oil traces and attachments on the bearing surface with a clean cloth (not cotton yarn), and then place it in front of the mating surface to push the bearing in one operation. To the position of the shoulder. Always tighten during the cooling process or tap the bearing with a small hammer through the fitting sleeve to make it tight. Slightly rotate the bearing during installation to prevent the installation from tilting or jamming.
When the bearing outer ring and the housing hole are tightly fitted, the housing can also be heated and loaded into the bearing. In particular, in the case of a tight fit of the bearing housing made of light metal, the bearing outer surface may be damaged by the press-in of the bearing outer ring, and the bearing housing should be heated at this time.
(1) The inner ring of the bearing is tightly fitted with the shaft, and the outer ring and the housing are loosely fitted. The bearing can be press-fitted on the bearing by a press, and then the shaft is fitted into the housing together with the bearing. A bearing sleeve (copper or soft steel) of a soft metal material is placed on the end face of the bearing. The inner diameter of the fitting sleeve should be slightly larger than the diameter of the journal, and the outer diameter should be smaller than the diameter of the flange of the inner diameter of the bearing to avoid pressing on the cage. A large number of handles can be added to the casing when installing the bearings in large quantities.
When installing the bearing, make the bearing hole and the center line of the shaft coincide. The bearing is not difficult to install relative to the shaft skew, and it can cause indentation, journal bending and even break the inner ring of the bearing.
Where the press is missing or not available, the bearing can be mounted with a mounting sleeve and a small hammer. The hammering force should be evenly transmitted to the entire circumference of the end face of the bearing ring, so the end face of the assembled casing that is hammered should be made spherical.
(2) The bearing outer ring is tightly fitted with the housing hole, and the inner ring and the shaft are loosely fitted, so that the bearing can be pressed into the housing first, and the outer diameter of the assembly sleeve should be slightly smaller than the diameter of the housing hole.
(3) The inner ring of the bearing and the shaft, the outer ring and the housing hole are tightly matched, and the end surface of the assembly sleeve should be made into a ring that can simultaneously press the end surface of the inner ring of the bearing, or a disc and an assembly sleeve can be used to make The pressure is simultaneously transmitted to the inner and outer rings, and the bearing is pressed into the shaft and the housing. This type of mounting method is particularly suitable for the installation of centripetal spherical bearings that can be self-aligning.
(4) Heating installation, the force required to install the bearing is related to the bearing size and the amount of interference. For medium and large bearings with large interference, the hot charging method is commonly used. Before the hot loading, put the bearing or the separable bearing ring into the fuel tank or special heater and heat it evenly to 80~100 °C (not exceeding 100 °C).
Hot-mounted bearings require skilled operating skills. When the bearing is removed from the heating tank or the heater, immediately wipe off the oil traces and attachments on the bearing surface with a clean cloth (not cotton yarn), and then place it in front of the mating surface to push the bearing in one operation. To the position of the shoulder. Always tighten during the cooling process or tap the bearing with a small hammer through the fitting sleeve to make it tight. Slightly rotate the bearing during installation to prevent the installation from tilting or jamming.
When the bearing outer ring and the housing hole are tightly fitted, the housing can also be heated and loaded into the bearing. In particular, in the case of a tight fit of the bearing housing made of light metal, the bearing outer surface may be damaged by the press-in of the bearing outer ring, and the bearing housing should be heated at this time.
Original pattern design ensures excellent performance on wet & dry road, meanwhile provides better comfort.
Deeper grooves design and wear-resistant compound, provide longer mileage and improve tyre economy.
Original pattern design ensures excellent performance on wet & dry road, meanwhile provides better comfort.
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