• Use a feeler gage with the thinnest blade of .0015 in.

• Place the bearing in an upright position with the inner and outer ring faces parallel.

• Place thumbs on the inner ring bore and oscillate the inner ring two or three elements.

• Position the individual roller assemblies so that a roller is at the top of the inner ring on both sides of the bearing.

• With the roller in the correct position, insert a thin blade of the feeler gage between the roller and the outer ring.

• Move it carefully along the top roller between the roller and outer ring raceway. Repeat this procedure using thicker feeler gage blades until one is found that will not go through.

• The blade thickness that preceded the “no-go” blade is a measure of RIC before installation.

• Start the mounting procedure by lubricating the tapered shaft with a light coat of machine oil.

   Slide the bearing onto the shaft as far as it will go by hand.

• As the Locknut is tightened, the interference fit builds up, resulting in expansion of the inner ring.

• Periodically measure to keep track of the reduction in RIC.

• Continue the procedure until the proper amount of reduction is obtained. Do not exceed suggested amount of reduction.

• As a final check, make sure the remaining RIC equals or exceeds the minimum mounted clearance shown in the table to the right.

   During mounting, the RIC should be checked at the unloaded roller. If this is at the bottom, make sure that the roller is raised to seat firmly at the inboard position of the inner race.

• When the suggested amount of RIC reduction has been accomplished, the bearing is properly fitted.

• Complete the procedure by peening the Lockwasher tang into the Locknut slot or securing the Lockplate. 

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