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Table 1 – Minimum Mounting Dimensions and Bolt Torque
Minimum Required Shaft Length
Reducer Size
Tapered Bore Straight Bore
Standard
Length Shaft
Short Length
Shaft Two Collars One Collar
TA0107LM 173 110 150 131
TA1107HM 177 113 148 129
TA 2 115 HM 198 122 165 146
TA3203HM 219 139 193 167
TA4207HM 227 144 204 172
TA5215HM 263 162 228 196
TA6307HM 275 171 239 207
TA7315HM 301 194 270 232
TA8407HM 326 206 294 256
TA9415HM 325 217 311 270
TA10507HM 393 246 355 299
TA12608HM 465 295 425 346
Bushing Screw Information and Minimum Clearance for Removal
Reducer Size Fastener Size Torque in N-m A
TA0107LM M8x1.25 23 - 27 30
TA1107HM M8x1.25 23 - 27 30
TA 2 115 HM M10x1.5 23 - 27 36
TA3203HM M10x1.5 23 - 27 36
TA4207HM M10x1.5 31 – 35 36
TA5215HM M12x1.75 90 - 105 48
TA6307HM M12x1.75 90 - 105 48
TA7315HM M12x1.75 90 - 105 53
TA8407HM M12x1.75 90 - 105 53
TA9415HM M16x2 100 – 115 60
TA10507HM M16x2 100 - 115 60
TA12608HM M16x2 100 - 115 60
2. Install one bushing backup plate on the end of the hub and
secure with the supplied retaining ring. Repeat procedure
for other side.
3. Place one bushing, ange end rst, onto the driven shaft
and position per dimension “A”, as shown in Table 1. This
will allow the bolts to be threaded into the bushing for
future bushing and reducer removal.
4. Insert the output key in the shaft and bushing. For ease of
installation, rotate the driven shaft so that the shaft keyseat
is at the top position.
5. Mount the reducer on the driven shaft and align the
shaft key with the reducer hub keyway. Maintain the
recommended minimum distance “A” from the shaft
bearing.
6. Insert the screws, with washers installed, in the unthreaded
holes in the bushing ange and align with the threaded holes
in the bushing backup plate. If necessary, rotate the bushing
backup plate to align with the bushing screws. Tighten the
screws lightly. If the reducer must be positioned closer than
dimension “A”, place the screws with washers installed,
in the unthreaded holes in the bushing before positioning
reducer making sure to maintain at least 3mm between the
screw heads and the bearing.
7. Place the second tapered bushing in position on the shaft
and align the bushing keyway with the shaft key. Align the
unthreaded holes in the bushing with the threaded holes in
the bushing backup plate. If necessary, rotate the bushing
backup plate to align with the bushing holes. Insert bushing
screws, with washers installed in the unthreaded holes in the
bushing. Tighten screws lightly.
8. Alternately and evenly tighten the screws in the bushing
nearest the equipment to the recommended torque given in
Table 1. Repeat procedure on outer bushing.
Short Shaft Bushings
1. One bushing assembly is required to mount the reducer
on the driven shaft. An assembly consists of one long
tapered bushing, one short tapered bushing, one tapered
bushing wedge, bushing screws and washers, two bushing
backup plates and retaining rings, and necessary shaft key
or keys. The driven shaft does not need to extend through
the reducer for the short shaft bushing to operate properly.
The minimum shaft length, as measured from the end of the
shaft to the outer edge of the bushing ange (see Figure 1),
is given in Table 1.
2. The long bushing is designed to be installed from the side
of the reducer opposite the driven equipment as shown
in Figure 2. The long bushing when properly installed is
designed to capture the end of the customer shaft that does
not extend through the reducer. Normally the reducer would
be mounted such that the input shaft extends from the
side of the reducer opposite the driven equipment however
the reducer design allows installation of the reducer to be
mounted in the opposite direction.
3. Install the tapered bushing wedge into the hollow bore of
the reducer from the same side as the long bushing will be
installed. When installing the tapered bushing wedge into
the reducer hub, install the ange end rst so that the thin
taper is pointing outwards towards the long bushing as
shown in Figure 2. The wedge is properly installed when it
snaps into place in the reducer hub.
Tapered Bushing Wedge
Figure 2 - Short Shaft Bushing and Output Assembly
4. Align the tapered bushing wedge keyway with the reducer
hub keyway. The keyway in the wedge is slightly wider than
the keyway in the reducer hub allowing for easier installation.
5. Install one bushing backup plate on the end of the hub and
secure with the supplied retaining ring. Repeat procedure
for other side.
6. Install the short bushing; ange rst, on the driven shaft and
position per dimension “A”, as shown in Table 1. This will
allow the bolts to be threaded into the bushing for future
bushing and reducer removal.
7. Insert the output key in the shaft and bushing. For ease of
installation, rotate the driven shaft so that the shaft keyseat
is at the top position.
