Belt type
Pulley type
Min. working di-
ameter [mm]
H max.
[mm]
Max. working di-
ameter [mm]
SPZ
RST 84
62
9
80
RST 95
73
9
91
RST 100
78
9
96
RST 108
90
7
104
SPA
RST 108
76
13
102
RST 120
88
13
114
RST 129
97
13
123
RST 139
109
12
133
RST 146
116
12
140
RST 156
126
12
150
RST 164
134
12
158
RST 177
149
11
171
RST 187
159
11
181
SPB
RST 156
117
19
149
RST 164
125
19
157
RST 178
139
19
171
RST 187
148
19
180
RST 200
161
19
193
RST 250
211
19
243
Table 7:
Data of pulley types
Changing the working diameter of a variable pulley:
1. Decrease the belt tension.
2. Open the over the disk circumference distributed screws (position see
3. Twist the outer ring (the outer rings for pulleys with 2 slots) to the desired diameter, ob-
4. Fix the Allen screws.
5. Tighten the belts (refer to
chapter 9.2.4 (Re-tensioning of belts)
).
Figure 127:
Schematic structures of a
variable pulley
Figure 128:
Position of the Allen
screws on variable pulleys
After a change of the transmission ratio, must be controlled in each case, the current con-
sumption of the motor. If the consumption is too high, the effective diameter has to be ad-
justed again. The nominal current shown on the nameplate must not be exceeded.
Summary of Contents for CCEB
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