Milnor 72044SR2, Mechanical Parts And Service, Page: 74 / 175

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Pellerin Milnor Corporation
Figure 37. Tightening the Bearing Housing into the Shell (42" machine shown)
9. Remove the guide rods and install the bearing housing cap bolts. See “Bolt Torque Require-
ments” elsewhere, for proper torques.
10. With the grease gun, pump grease into the inner portion of the bearing cavity, such that when
the bearing is installed, the space between the bearing and the seals will be approximately 1/3
full of grease.
11. Proceed to Section : Measuring Unmounted Clearance and Setting Bearing (Front or Rear),
page 72 , even if both the front and rear bearings are being replaced. Once the rear bearing is
installed, the bearing housing replacement procedures may then be repeated for the front (soil
side) bearing housing.
Measuring Unmounted Clearance and Setting Bearing (Front
or Rear)
BNWVUM02.T04 0000278712 A.4 A.5 A.3 3/12/20 11:54 AM Released
The bearings used on Milnor ® washer and dye extractors are the very best anti-friction devices
available for these applications. However, the anti-frictional characteristics of the bearings will
be reduced if they are not properly installed. It is of critical importance when installing these ta-
pered roller bearings, to accomplish the following (A step by step procedure follows this
synopsis):
1. Accurately measure the unmounted internal clearance of the bearing (gap between the rollers
and outer race before the bearing is installed). This is an essential quality control measure.
2. Calculate the final internal clearance by subtracting the specified clearance reduction (amount
that the internal clearance must be reduced when the bearing is tightened onto the tapered
shaft) from the unmounted clearance.
3. Tighten the bearing onto the shaft until the final internal clearance as calculated is achieved
and verified by measurement.
Drive Assemblies