Bosch rexroth MCL, Project Planning Manual

Page: 170 / 206

Motor damage due to insufficient air gap be‐
tween primary and secondary part!
NOTICE
Observe during fastening of the secondary parts according to variant 2 that
the maximum screw-in depth specified in the table, is kept. In the case of de‐
fiance, the primary part can be irreparably damaged due to collision with
overhanging screws.
Fastening type - variant 1
Secondary
part MCS ...
Drilling diam‐
eter within
the secon‐
dary part
maximum
screw-in depth
Screw size
(DIN EN ISO
4762)
Fastening class
Tightening torque
(+/-10%)
Variant 1
015 4.5 mm
depending from the customer´s
application
M4
8.8
3.1 Nm
020 4.3 mm M4 3.1 Nm
030 4.3 mm M4 3.1 Nm
040 6.4 mm M6 10.4 Nm
070 8.5 mm M8 25 Nm
Tab. 13-1: Fastening mode (variant 1) with tightening torques for MCS
Fastening type - variant 2
Secondary
part MCS ...
Thread di‐
ameter with‐
in secondary
part
maximum
screw-in depth
Screw size
(DIN EN ISO
4762)
Fastening class
Tightening torque
(+/-10%)
Variant 2
015 M4 9 mm M4
8.8
3.1 Nm
020 M5 9 mm M5 6.1 Nm
030 M5 9 mm M5 6.1 Nm
040 M6 11 mm M6 10.4 Nm
070 M8 12 mm M8 25 Nm
Tab. 13-2: Fastening mode (variant 2) with tightening torques for MCS
The calculation about firmness of screw connection for fastening the secon‐
dary part are based on the assumption that the screwing surface of the sec‐
ondary part and the screwing surface of the machine are clean and the sec‐
ondary part is screwed in direct contact with the machine and secured with
Loctite 243.
162/197
Assembly
MCL Ironless Linear Motors
Bosch Rexroth AG R911330592_Edition 06