Technical data

4-2 MHD Type Code MHD Sychronous motors
DOK-MOTOR*-MHD********-PR05-EN-P
1. Product Group
MHD Three-digit Bosch Rexroth-specific designation of a servo motors
series.
2. Motor Frame Size
The motor frame size defines essential mechanical motor dimensions.
The following table assigns essential motor dimensions to the motor
frame sizes.
Description / detailsMotor
frame
size
Flange size
in mm
Centering diameter
in mm
041 82 50
071 115 95
090 140 110
093 140 / 150 130
095 140 / 150 130
112 192 130
115 192 180
131 260 250
Fig. 4-2: MHD motor frame sizes
3. Motor Frame Length
Within the scope of a motor frame size, the motor frame length defines
the various continuous torques at standstill. The continuous torques at
standstill of the MHD motors are listed in the table below. The values
specified are applicable to the “natural convection” mode.
Motor Frame SizeMotor
frame
length
041 071 090 093 095 112 115 131
A
1.3 Nm 3.5 Nm -- 12.0 Nm 12.0 Nm 15.0 Nm 32.0 Nm --
B
2.7 Nm 8.0 Nm 12.0 Nm 17.5 Nm 17.5 Nm 28.0 Nm 50.0 Nm 48.0 Nm
C
-- -- -- 23.0 Nm 23.0 Nm 38.0 Nm 70.0 Nm --
D
-- -- -- -- -- 48.0 Nm -- 160 Nm
Fig. 4-3: MHD motor frame lengths
Abbrev. column
1 2 3
Abbrev. column 4 5 6
Abbrev. column 7