Page 7 - SKF-SPEEDI-SLEEVE

Fig. 3 Installation procedure 10 If the flange was cut for removal, use a
pair of long-nosed pliers to grasp the
1 Clean the seal counterface surface on the flange away from the sleeve and twist it
shaft. File down any burrs or rough spots into a coil, being careful not to lift the end
and make sure that the sleeve will not be of the sleeve off the shaft or it will leave
installed over keyways, cross holes, splines a jagged edge. Flange removal must be
or similar. done with care to avoid damage to the
2 Measure the diameter on an unworn por- outside diameter of the sleeve.
tion of the shaft where the sleeve will be 11 After the sleeve is installed, check again for
positioned († fig. 3). Measure in three burrs that could damage the seal.
positions and average the readings to make 12 Lubricate the sleeve with the system
sure the shaft is within recommended medium before installing the seal.
specifications. If the average diameter is 13 Proceed with seal installation.
within the range for a given sleeve size,
there is sufficient press fit built into the
Clean and measure the diameter of the worn Removal
shaft and mark the area where the sleeve will sleeve to prevent it from sliding or spin-
cover the scored portion of the shaft. ning without using an adhesive.
3 Determine where the sleeve must be posi- SKF SPEEDI-SLEEVE can be removed by
tioned to cover the worn area. Measure to applying heat to the sleeve with an electric
the exact point, or mark directly on the heat blower, which will expand it enough to
Fig. 4 surface. The sleeve must be placed over let it slide off the shaft without causing any
the worn area, not just bottomed or left damage to the shaft. Alternatively, the sleeve
flush with the end of the shaft. can be removed in any of the following ways,
4 Shallow wear grooves do not require filling. always using care not to damage the shaft
Optionally, a light layer of a non-hardening surface:
sealant can be applied to the inside diameter
surface of the sleeve. Clean away sealant • by relieving the press-fit tension using a
that migrates to the shaft or sleeve outside small hammer to peen across the full width
diameter surface. of the sleeve
5 If the shaft is deeply scored, fill the groove • by using a cold chisel to cut through the
with a powdered metal epoxy-type filler. sleeve
Install the sleeve before the filler hardens, • by using a pair of wire cutters starting at
enabling the sleeve to wipe off any excess or near the flange and applying a twisting
filler. Clean away any remaining filler from motion
the sleeve outside diameter surface.
Place SKF SPEEDI-SLEEVE on the shaft and then
place the special installation tool over the sleeve. 6 It should be repeated that heat should Please note that SKF SPEEDI-SLEEVE cannot
never be used to install SKF be reused.
SPEEDI-SLEEVE.
7 If the flange should be removed after
installation, cut it from the outside dia-
Fig. 5 meter into the radius in one location. The
flange end of the sleeve goes on the shaft
first. Then, place the installation tool over
the sleeve († fig. 4).
8 Gently tap the centre of the installation
tool until the sleeve covers the worn shaft
surface († fig. 5). If the installation tool is
too short, a length of pipe or tubing with a
squared-off, burr-free end can be used.
Be sure that the inside diameter of the
pipe is the same as that of the installation
tool. Use care not to scratch the precision
ground sleeve’s outside diameter.
9 SKF SPEEDI-SLEEVE should always be
installed so that the outside edge of the
Tap the installation tool with a mallet until the
sleeve is seated on the shaft over the marked sleeve is seated on the full shaft diameter.
area. Remove the installation tool. It must not rest in or outside the chamfer
area since the sharp edge will likely cut the
sealing lip during seal installation.

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