Adapter sleeve and withdrawal sleeve is used to fix tapered self-aligning bearing.It depends on friction with shaft to fix bearing.When install,inner ring of bearing expands and radial clearance reduces.We can conclude magnitude of interference through radial clearance decrease.We must control strictly reduced equal value of radial clearance as you install.

    Before installation, we should check the mark,precision and clearance grade of
installed bearing and adapter sleeve.Check the appearance,especially inner ring surface of bearing should not appear collision，abrading or appearing easily the defect of stress concentration.

    Check original clearance and put bearing in vertial direction.Make inner ring and outer ring concentric.Inner ring waves serval times and make roller in proper direction placidly.Put feeler gauge in non-loaded place between roller and outer ring.It must dip in the whole roller length.We must make sure two lines rollers through this formal check this moment.

     The measuring of radial clearance decrease when installation,the reduced radial clearance is defined as the radial clearance difference before and after mounting.We should look up radial clearance recommended value from the table following the original radial clearance metrical data.We should check radial clearance continually during mounting and make it fulfill residual clearance.It must be carried out on non-loaded rollers when measuring.

    Use measuring floating distance after bearing press mounting ( namely measuring method of axial pressing-in value) to replace measuring radial decrease for concluding magnitude of interference.

    When bore diameter is less than 100mm, this small bearings do not taking above installation measure in usual.The installation is outside bearing block.Use claw wrench to install.The suitable degree is rotating outer ring easily using hand and make it just turning evenly.

    The installation of taper bearing which bore diameter is between 100mm and 140mm should use impact wrench.We’d better grease MoS2 or similar lubricant on screw thread where nut and bearing contact.It can reduce friction drag and the installation is convenient.

    The installation of taper bearing which bore diameter is between 140mm and 360mm should use terminal nuts with thrust bolts.The installation and dismounting is more saving both time and labor.

    For medium and large adapter sleeves, the installation is easy and the dismounting is difficult.The most advanced method is using hydraulic nut.To make dismounting convenient ,should bore diameter should be above 50mm.Even as big as 500mm of bearings can be dismantled easily.It can save both time and labor and installation precision is high.We only need a manual high pressure pump.