Bosch rexroth M1-16 Series - Page 27

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