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How to do the installation of stainless steel bearing ( 13)
by:Waxing
2020-11-19
Mesh, operating standards for stainless steel bearing installation.
Low, cleaning stainless steel bearings and related parts (
To have grease lubrication of the bearing and oil seal or dust cover on both sides, seal bearing without cleaning before installation.
)
Low, check the size of the related parts and finishing is low, the installation method of bearing installation should be according to the bearing structure, size and cooperate with properties of bearing parts, pressure should be directly in the tight fit on the ring width, shall not be passed on roller pressure, bearing installation commonly adopt the following methods: a.
Force fit tight fit bearing inner ring and the shaft, the outer ring and bearing hole is a loose fit, press the bearing to be pressed on the shaft are available, and then put the shaft together with the bearing load bearing hole, when pressed on the bearing inner ring end face, cushion the assembling casing made of a soft metal materials (
Copper or mild steel)
。
Bearing outer ring and bearing hole tight fit, inner ring and the shaft is a loose fit, the bearing can be pressed into the bearing hole first, then assembling casing diameter should be slightly less than the diameter of a hole.
If the bearing ring and shaft and hole is a tight fit, install indoor ring and outer ring to pressure into the shaft and hole, at the same time assembling casing structure should be able to at the same time, so the bearing inner ring and outer ring end face.
b。
Heated by heating the bearing or bearing seat, the use of thermal expansion will fit into a loose fit installation method.
Installation method is a kind of common and energy saving.
This method is suitable for interference quantity larger the installation of the bearing, the bearing before hot charging type or separable bearing ring into the fuel tank 80 - uniform heat
100 ℃, and then loaded on the shaft, as soon as possible out of the oil to prevent inner ring after cooling end face and shoulder joint is not tight, bearing axial fastening again after cooling.
Bearing outer ring and light metal bearing seat tight fit, by heating the hot charging method of the bearing, can avoid the mating surface scratch.
Tank heating bearing, from a distance place is due at the bottom of a mesh, as shown in figure 2
7, or hanging hooks in the bearings, bearing on the bottom, in case of heavy impurities into the bearing or uneven heating, fuel tank must have a thermometer, strictly control the oil temperature shall not exceed 100 ℃, in order to prevent the tempering effect, reduce the hardness of the ring.
c。
The installation of the thrust bearing thrust bearing of the matching of the thorough and axis is commonly transition fit, seat and the bearing holes with the general for the clearance fit, so this kind of bearing is easy to install, two-way thrust bearing axial spring should be fixed on the shaft, in order to prevent the relative to the axis of rotation.
Bearing installation method, usually is the situation of the axis of rotation, so the inner ring cooperate for win cooperate with shaft, with the bearing outer ring and bearing chamber for clearance fit.
Low, bearing check stainless steel bearings after installation, operation should be performed immediately check, has determined whether normal installation.
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