RE 15300-WA, Version 06.2021,
Bosch Rexroth AB
Installation
45/72
Table 16: Screws and tightening torque,
for standard
shrink discs
Motor type
Shrink disc
size
Number of
screws
Screw
dim.
Strength
Tightening torque
Nm
Ibf ft
CBm 2000 S with coupling adapter
⌀ 425
36
M20x160
12.9
570
421
CBm 2000 E
⌀ 420
32
M20x130
10.9
490
362
CBm 2000 C
⌀ 425
36
M20x160
12.9
570
421
CBm 3000 to CBm 4000 S with
coupling adapter
⌀ 560
48
M20x180
12.9
570
421
CBm 3000 C
⌀ 425
36
M20x160
12.9
570
421
CBm 5000 to CBm 6000 S with
coupling adapter
⌀ 590
32
M30x240
12.9
1650
1217
Fig. 45: Tightening order
DD00058188
NOTICE
Slipping shaft.
Damage of motor or customer shaft.
▶ There is a metallic sign on every shrink disc with a tightening torque stamped
on it. This torque is always to be used.
▶ Tightening torque value is critical. Use calibrated torque wrench.
▶ Uncoated screws shall be greased with Molykote G-Rapid plus paste.