Positioning
of GR inner race
Remove the feeler gauge from the bottom inner race joint. Rotate
the lower half cartridge with GR outer race into position. Place
one half of the roller and cage assembly in position on top of
the inner race. Slide or tap the inner race sideways until the
roller/cage assembly will rotate freely into the lower half outer
race.This ensures the inner and outer races are properly aligned.
Tighten the clamp ring screws to secure the inner race in place.
Remove the lower half cartridge and half roller/cage assembly.
Positioning
of the EX inner race
Remove the feeler gauge from the bottom inner race joint.
Slide or tap the inner race sideways to center it on the pedestal
base. Rotate the lower half cartridge with EX outer race into
position. Place one half of the roller and cage assembly in position
on top of the inner race. Rotate the roller and cage into the
bottom half outer race. Check to ensure the rollers are centered
on the outer race. Tap or slide the inner race if adjustments
are needed for centering. Tighten the clamp ring screws to secure
the inner race in place. Remove the lower half cartridge and half
roller/cage assembly.
Seating
and torquing clamp rings
Use a wood or plastic mallet to seat the clamp rings down
into the clamp ring grooves. There should be a gap at both joints
for each clamp ring.The screws should be tightened in such a manner
to keep the gaps approximately equal. Torque both screws on one
of the rings to the torque value shown on the attached charts.
Seat the clamp rings down hard a second time with the mallet and
re-torque. Torque the screws on the other clamp ring, tap down
hard and retorque. Check to ensure there are gaps at the inner
race joints and that they are approximately equal. Lightly grease
the roller path of the inner race.
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Step
5: Roller and cage assembly
Lightly grease
the rollers, rotating them to force some grease into the cage
pockets. One side of the cage will have circular impressions,
use this as the match mark for the cage halves.
Aluminum
cages
Assemble the halves around the inner race and push in the
‘U’ clips or joint plates at the joints to hold the
halves together.
01E Series
with steel cages
Engage the tabs on one half with the cage body of the other
half. Press together until the joint snaps closed. Repeat for
the other cage joint.
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6: Fitting of the outer race into cartridge
The following
procedure should be used only when mounting a new bearing (inner
race, clamp rings, roller & cage, and outer race) in an existing
cartridge housing:
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- Clean
the outer race seat of the cartridge to ensure it is dry
and free of contamination.
- Clean
the outer race and place in the cartridge halves so that
the match marks coincide and the outer race half with the
lubrication hole is in the top half housing.
- Enter
the radial securing screws (D) (01 Series 71/2" and
up, 02 Series 611/16" and up, and all 03 Series), finger
tight only - it is important to fit the washers.
-
Fit the side rods and screws (C) where provided (GR cartridges
only), and tighten these against the side face of the outer
race very lightly. (Note: some designs have only side screws
and no side rods.)
- Assemble
the two halves of the cartridge together and fully tighten
the joint screws (B). Ease the pressure on these screws,
then fully tighten the radial securing screws (D) and/or
the side screws (C). (In some larger sizes, two cartridge
joint screws must be removed to finally tighten the side
screws).
- Re-tighten
the cartridge joint screws and check the joints of the outer
race track for a smooth transition.
- Ensure
that all grease passages are full by applying a grease gun
to the grease fitting and noting fresh grease discharging
through the lubrication hole in the top half outer race.
Disassemble the cartridge and proceed with the bearing installation.
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| Step
7: Lower half cartridge
Coat the outer
race roller path and fill the center grooves of the seal labyrinths
with grease. Coat the spherical OD with an anti-seize compound
or similar. Slide the ATL seals into position to engage the labyrinths
in the cartridge.
The grease
boss is located on one end of the cartridge. Decide which end
you prefer to have the grease boss on before putting the lower
half cartridge in place. Raise the shaft sufficiently (typically
0.010") to roll the lower half cartridge into the pedestal
base.
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| Step
8: Upper half cartridge
The top half
outer race has a lubrication entry hole at top center. Make sure
the race half with the hole is in the top half cartridge. Coat
the outer race roller path and fill the center grooves of the
seal labyrinths with grease.
Coat the spherical
OD with an anti-seize compound. Assemble the top half cartridge
onto the lower half checking for the match marks stamped into
the joint faces of the halves.
Torque the
four cartridge joint screws to the torque values shown in the
attached charts.The same wrench used for the clamp ring screws
will fit the cartridge joint screws.
NOTE: For
the fixed (GR) unit only, the side fixing screws on the cartridge
face opposite the lube boss are to be tightened AFTER completely
tightening the joint screws.
If supplied,
the radial screws on the OD of the cartridge (illustrated in step
6) should also be checked to ensure they are tight.
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9 Pedestal cap and top half flange
Assemble the
pedestal cap or top half flange onto the bottom half checking
for match marks stamped into the joint faces. Finger tighten the
two screws.
Slowly roll
the shaft to ensure nothing is binding in the bearings and to
allow the cartridge to swivel in the ball and socket joint with
the pedestal or flange to align itself.
Tighten the
bolts using an allen wrench and an extension.
Torque values
can be seen on the next page (click here).
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