Bosch rexroth M1, Instruction Manual

Page: 27 / 54

RE 64025-B/2021-08-12, Bosch Rexroth AG
Installation | Control blocks for mobile applications 27 /54
The control spool can jam if the tightening torque is too high. In such a case the
mounting torque must be reduced accordingly. Pay attention to sufficient residual
clamping force of the screws.
1� Observe the requirements for the contact surface in the offer drawing.
2�
Check the evenness of the flange surface in the machine (tolerance: 0.5 mm).
3� Always fasten the control block at all the fastening points that are intended
for this purpose using screws or – depending on the type of mounting – using
hexagon nuts according to one of the property classes stated in Table 6 as per
EN ISO
4762 or EN ISO 4014.
4�
Tighten the screws with the specific tightening torque given in the standard.
The tightening torques indicated in Table 6 represent guide values only
which have been obtained from VDI 2230 (90% utilization of the minimum
yield strength, frictional value 0.14). The actually required tightening torques
depend on various factors, e.g. screw material and coating, operation forces,
material of the tensioned components. Generally, it is herewith referred to the
parameters provided by the system supplier.
Bosch Rexroth recommends a screw connection with the following parameters:
Table 6: Mounting bolts
Series Dimension Property class Tightening
torque [Nm] Screw-in depth
[mm]
M1-16 M8 8.8 / 10.9 27 / 40 1)
M1-25 M10 8.8 / 10.9 54 / 79 10
M1-32 M12 8.8 / 10.9 93 / 37
1)
M4-12 M10 8.8 / 10.9 41 / 60 12 … 15
M4-15 M10 8.8 / 10.9 54 / 79 10
M4-22 M16 8.8 / 10.9 230 / 338 1)
M6-15 M10 8.8 / 10.9 54 / 79 10
M6-22 M12 8.8 / 10.9 93 / 137 12
M7-20 M12 8.8 / 10.9 93 / 137 12
M7-22 M16 8.8 / 10.9 230 / 338 16
M7-22 M16 8.8 / 10.9 230 / 338 20 … 24
M8-16 M16 8.8 / 10.9 230 / 338 16
M8-18 M16 8.8 / 10.9 230 / 338 16
M8-22 M16 8.8 / 10.9 230 / 338 16
M8-25 M16 8.8 / 10.9 230 / 338 16
M8-32 M20 8.8 / 10.9 464 / 661 20
M8-35 M16 8.8 / 10.9 230 / 338 1)
M9-20 M16 8.8 / 10.9 230 / 338 16
M9-25 M16 8.8 / 10.9 230 / 338 16
MO-10 M10 8.8 / 10.9 54 / 79
1)
MO-16 M8 8.8 / 10.9 27 / 40 1)
MO-22 M10 8.8 / 10.9 54 / 79 1)
MO-32 M12 8.8 / 10.9 93 / 137 1)
MO-40 M16 8.8 / 10.9 230 / 338
1)
MO-52 M20 8.8 / 10.9 464 / 661 20
RCS30 M16 8.8 / 10.9 230 / 338 25
RCS35 M20 8.8 / 10.9 464 / 661 30