Friends who often use SKF bearings know that the installation of SKF bearings will affect the accuracy, service life and performance of SKF bearings. Therefore, please fully study the installation of SKF Bearing, that is, please install SKF Bearing according Skf Bearing Installation to the steps including the following items.
（1） Clean SKF bearings and related parts
For grease lubricated SKF bearings and both sides with oil Skf Bearing Installation seals or dust covers, sealing rings and SKF bearings do not need to be cleaned before installation.
（2） Check the size and finish machining of relevant parts
（3） . installation method
The installation of SKF Bearing shall be determined according to the SKF Bearing structure, size and matching nature of SKF Bearing components. Skf Bearing Installation The pressure shall be directly added to the end face of the tightly matched ferrule, and the pressure shall not be transmitted through the rolling element. The SKF Bearing Installation generally adopts the following methods:
The inner ring of SKF Bearing fits tightly with the shaft. When the outer ring fits loosely with the SKF bearing seat hole, press the SKF Bearing on the shaft with a press, and then install the shaft together with the SKF Bearing into the SKF bearing seat Skf Bearing Installation hole. When pressing, pad an assembly sleeve (copper or mild steel) made of soft metal material on the end face of the inner ring of SKF Bearing.
The inner diameter of the assembly sleeve should be slightly larger than the diameter of the journal, The outer diameter of SKF should be slightly Skf Bearing Installation smaller than the outer diameter of the bearing retainer. The outer ring of SKF Bearing fits tightly with the SKF bearing seat hole. When the inner ring fits loosely with the shaft, the SKF Bearing can be pressed into the SKF bearing seat hole first.
At this time, the outer diameter of the assembly sleeve should be slightly smaller than the diameter of the seat hole. If the SKF Bearing ring is tightly matched with the shaft and seat hole, the inner ring and outer ring in the installation chamber shall be pressed into the shaft and seat hole at the same time, and the structure of the assembly sleeve shall be able to press the end faces of the inner ring and outer ring of SKF Bearing at the same time.
By heating SKF Bearing or SKF bearing seat, the installation method of changing tight fit into loose fit by thermal expansion. It is a common and labor-saving installation method. This method is suitable for the installation of SKF Bearing with large interference. Before hot installation, put the ferrule of SKF Bearing or separable SKF Bearing into the oil tank and heat it evenly for 80-100 ℃, then take it out of the oil and install it on the shaft as soon as possible.
In order to prevent the end face of inner ring and shaft shoulder from not fitting tightly after cooling, SKF Bearing can be tightened axially after cooling. When the outer ring of SKF Bearing is tightly matched with the Skf Bearing Installation SKF bearing seat made of light metal, the hot installation method of heating the SKF bearing seat can avoid scratching the mating surface.
When heating the SKF Bearing with the oil tank, there should be a mesh grid at a certain distance from the box bottom, or the SKF Bearing should be hung with a hook. The SKF Bearing should not be placed on the box bottom to prevent sinking impurities from entering the SKF Bearing or uneven heating. There must be a thermometer in the oil tank, and the oil temperature must be strictly controlled not to exceed 100 ℃ to prevent tempering effect and reduce the hardness of the ferrule.
The tapered hole bearing can be directly installed on the journal with taper, or on the conical surface loaded with the set sleeve and the release Skf Bearing Installation sleeve. The tightness of its fit can be measured by the reduction of the radial clearance of SKF Bearing.
Therefore, the radial clearance of SKF Bearing should be measured before installation. During installation, the clearance should be measured Skf Bearing Installation frequently to achieve the required reduction of clearance. Generally, lock nut is used for installation, Heating installation method can also be used.
The fit between the circumference of the thrust bearing and the shaft is generally a transition fit, and the fit between the race and the SKF bearing seat hole is generally a clearance fit. Therefore, this SKF Bearing is easy to install. The middle shaft spring of the two-way thrust SKF Bearing should be fixed on the shaft to prevent rotation relative to the shaft.
Generally, the installation method of SKF Bearing is mostly shaft rotation, so the fit between inner ring and shaft is win-win fit, and the fit between outer ring of SKF Bearing and SKF Bearing chamber is clearance fit.