| Step
1: Checking the shaft
The shaft
diameter at the bearing seat should be within tolerance as shown
in our Product Catalog. As a general guide, +0.000", - 0.002"
is adequate. Any taper or out of roundness in the shaft at the
bearing should be less than 0.001". Shaft surface finish
should be 63 to 125 micro-inch.
To check the
shaft for taper, it must be measured at two or three points, usually
the left side, right side and center of the inner race position.The
diameter should not vary by more than 0.001" from side to
side or 0.0005" from side to center. To check the shaft for
roundness, the diameter should be checked at three places around
the clock; vertically (12 o'clock), 60° away from top center
(2 o'clock) and 120° away from top center (4 o'clock). These
measurements should not vary by more than 0.001".
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Step
2: Aluminum triple labryrinth seals
Disassemble
the supplied components and remove the ATL seals. Separate the
seal halves by driving out the two joining pins. Lubricate the
"O" rings in the bore with grease.
Assemble the
halves on the shaft. Ensure that 'COOPER ' and the shaft size
are stamped on the same face of the seal. A hose clamp can be
used to compress the seal on the shaft while the pins are reinserted.
Channel-locks can be used to push the pins back into the seal.
Push the assembled seals sideways to be out of the way when assembling
the inner race.
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| Step
3: Pedestal base and lower half flange
Position the
lower half pedestal or flange and engage the hold down bolts with
flat washers under the bolt heads. You may wish to leave the bolts
slightly loose until final alignment is achieved. If shims are
used, make sure that the whole base is supported with a full shim.
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| Step
4: Inner race
Separate the
roller and cage assembly by removing the ‘U’ clips
from the joints or separating the joint plates with a flat head
screwdriver. For the 01E Series (with steel cage), separate both
sides of the cage halves as shown. Disengage both joints before
removing the roller cage from the inner race. peel off the protective
tape from the inner racetrack.
Make sure
the shaft is clean and dry. SOLVENT CLEAN THE PACKING GREASE
OR PRESERVATIVE OFF ALL BEARING PARTS. Disassemble the inner
race and clamp rings keeping matched halves together. The side
face of the two clamp rings and inner race will have match numbers
near the joint.
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Position the
two inner race halves on the shaft centered on the spherical seat
of the pedestal. Joints of the race should be vertical (at 12
o'clock and 6 o'clock positions).
Put a 0.015"
thick feeler gauge in the bottom joint to keep the joint from
closing up. There should be a gap in the inner race joints, usually
between 0.015" and 0.022" per side.
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Put one half
of one clamp ring in one of the inner race grooves with the guide
lip toward the roller path, off-setting the clamp ring joint from
the inner race joint. The off-set can be as little as 20°
or up to 90°.
The clamp
ring half should hold the inner race on the shaft. It is best
to arrange the clamp rings so that the half with the through holes
is on top and the half with the threaded holes is on the bottom.This
will keep the heads of the clamp ring screws pointed upwards allowing
tool access.
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Tap
down the clamp rings all around to seat them, then tighten the screws
with an allen wrench. DO NOT FULLY TIGHTEN THE CLAMP RING SCREWS
UNTIL THE INNER RACE IS POSITIONED ON THE SHAFT.
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