1. Check the size and condition of the shaft to which the reducer will be fitted. Maximum tolerance is h11
although this should be improved upon where possible. Ensure the shaft and Taper-Grip® Bush bore
are free from burrs and corrosion. Clean both bore and shaft with solvent to remove all traces of grease
and oil.
2. Lightly oil the screws and insert into the Taper-Grip
®
Bush ensuring they do not project beyond the rear
face.
3. Fit the thrust collar onto the Taper-Grip® Bush, ensuring it is located on the spigot immediately behind
the flange. Screw the Taper-Grip
®
Bush into the hub in a clockwise direction until the thrust collar is
trapped between the flange and the reducer hub.
4. Unscrew the bush until a gap of approx. 1 mm is seen between the flange and the thrust collar (see
diagram). Tighten all screws until they are finger tight. On reducers with a keyslot on the end of the hub,
ensure that a screw is NOT positioned over the keyslot.
5. Slide the reducer onto the shaft at least as far as the counter bore, if present, in the Taper-Grip® Bush.
Gradually tighten each screw in turn to the torque levels shown below. If the shaft has passed through
the counter bore, grease fill the cavity at the shaft end to prevent the build up of corrosion. Installation
details of V-drive, torque arm, etc. are given in the leaflet provided with each gear unit.
6. After the reducer has been running for 20 or 30 hours, re-torque the screws to the values in the table
below.
Screw torques should be subsequently checked at normal service intervals (i.e. every 6 months).
REMOVING THE REDUCER FROM THE SHAFT
Slacken each screw gradually until they are free from the thrust collar. Give the Taper-Grip
®
bush a sharp
tap with a mallet to break the taper, this will free the reducer. Finger tighten two of the screws against the
thrust collar to prevent the Taper-Grip
®
bush locking in the opposite direction as the reducer is removed
from the shaft.
Note: Satisfactory performance depends on proper installation.
Therefore all instructions on this leaflet must be carefully followed.
Taper-Grip
®
Size
Screw Size
Thrust Collar
Code
Screw Torque (max)
Qty.
Code
Nm
lb ft
B
6 x M 10
112B7003
112B6146
40
30
C
6 x M 10
112B7003
112C6146
50
37
D
6 x M 10
112B7003
112D6146
55
41
E
6 x M 12
112E7003
112E6146
75
56
F
6 x M 12
112B7003
112F6146
140
104
G
6 x M 16
112G7003
112G6146
250
185
H
6 x M 16
112G7003
112H6146
300
223
J
8 x M 16
112G7003
112J6146
300
223
S
10 x M 16
112S7003
112S6146
300
223
K
12 x M 16
112S7003
112K6146
250
185
L
15 x M 16
112S7003
112L6146
250
185
M
20 x M 16
112S7003
112M6146
250
185
Installation and Maintenance of
SUMITOMO TAPER-GRIP
®
ST BUSH
TGB_ENG_DEU_01_2007_999347
Edition 18/01/2007
Hollow gear shaft
with inner grip
Machine shaft
Grease
Thrust collar
Bush with
outer grip
1 mm
Cyclostr. 92
85229 Markt Indersdorf
email: marktind@sce-cyclo.com
www.sumitomodriveeurope.com
Tel.
.
+49 (0) 8136 66 0
Fax.: +49 (0) 8136 5771
Sumitomo (SHI) Cyclo Drive Germany, GmbH
SIT, S.A. Tfno. 943 457200 | www.sitsa.es | atencioncliente@sitsa.es
