INA Bearing radial internal clearance bearing the advancement of the tapered journal on narrow. Can be determined by measuring the decrease value, the surplus degrees and with the degree of tightness. For tapered bore bearing inner ring installation is always the interference fit.
 
Different bearings with cylindrical bore, tapered bore bearings interference degree is not decided by the selected axis tolerances, but determined by the bearing sleeve conical journal, sleeve or Withdrawal advance distance.

Install self-aligning ball bearings, toroidal roller bearings, spherical roller bearings, and high-precision cylindrical roller bearings with tapered bore, to determine the radial internal clearance to reduce the value or cone base on axial propulsion distance as a measure of the amount of interference scale. Clearance is reduced and axial propulsion guidance value of the distance, the following areas:

1, small bearings
Small INA Bearing nuts, advancing to the cone base. In the case of using the sleeve, the sleeve nut. Small withdrawal sleeves available nut to push the bearing bore. Available hook wrench or pneumatic wrench to tighten the nut. Before starting the installation, in the journal and the sleeve surface slightly with a little oil.

2, medium-sized bearing
Large bearing installation required a significant increase, and should use hydraulic nuts and / or oiling method:

(1) When using hydraulic nut to install the bearing must be positioned on the threads of the threaded portion of the journal or sleeve, so that the annular piston close to the bearing inner ring, nut or retaining ring installed in the shaft axis. Hydraulic oil pump into the hydraulic nut, a safe, accurate installation force required to move the piston in the axial direction. Hydraulic nuts, spherical roller bearings installed to

(2) oiling method, oil injected under high pressure, forming a layer of oil film between the bearing and journal. Layer film with the surface separated from, and significantly reduces the friction between the mating surfaces. Direct bearing to install tapered journal, generally use this method, but is also used specifically for oiling method to prepare the adapter sleeve and shirking put install bearings. Pump oiler to generate the necessary pressure, through the channel of the trench and sub-oil on the shaft or the sleeve, oil injected between the mating surfaces. Design INA Bearing layout, we must consider the trench and channel arranged on the shaft. Spherical roller bearings installed in the retreat of the tank unloading put oil into the mating surface, and tighten the screws in turn, will retire unloading sleeve pressed into the bearing bore.

INA Bearing the installation of the best use of hydraulic tools, but most of the master hammer into, so inevitably will the bearing impact.
 
The following is a bearing installation and replacement of technical notes:
   
(1) a joint force of the force as much as possible through the axis of the bearing, which requires a springboard for symmetrical and smooth, spherical or parallel to the axis of force.
   
(2) the size of the force should be steady and uniform, not impact, which requires the use of hydraulic or with tools able to exert a steady pull or pressure, really had to use hammer, but also by the relatively soft copper sleeve, of scrap metal to be buffered by a percussion force gently as possible. The best use of brass or copper hammer for hammering.
   
(3) to avoid through the rolling force, which requires disassembly inner ring (shaft washer) through the inner force, when disassembly outer) through the outer force.
   
(4) drag force to continue until it should, for example, when you install the bearings in INA Bearing just loaded into the correct position to stop the force, to ensure the end of the ferrule (washer) is against the housing bore or shaft shoulder block end, both can not be packed too tight, can not be installed in place.



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