Output Shaft And Motor Bearing - REXROTH EcoDrive Cs Project Planning Manual

8-30
Motors
Designation
holding torque
tripping voltage
rated voltage
rated current
moment of inertia
clamping delay
release delay
allowed braking energy (once per
braking operation)
allowed braking energy (total)
allowed angular acceleration

Output Shaft and Motor Bearing

Please observe the instructions on putting the holding brakes into
operation described in the chapter entitled "Startup, Operation, and
Maintenance".
Data
Symbol Unit
MSM020B
M Nm
4
V
24 ±10%
U V
N
I A
N
2
J kgm 0.003
B
t ms
1
t ms
2
J
J 4.9 x 10
2
rad/s 10000
all data based on an ambient temperature of 20 °C
Fig. 8-41: Technical data of holding brake
• The above values are typical values, except for holding torque, tripping
voltage and rated voltage.
• When the motor was moved the play of the brake is ±1° or less.
• The power supply of the holding brake is realized externally.
• Maximum number of acceleration and braking processes with the
highest allowed angular acceleration: 10 million.
Plain shaft
The standard design recommended for MSM motors provides a friction-
locked shaft-hub connection without play and excellent running
smoothness. Use clamping sets, clamping sleeves or clamping elements
to couple the machine elements to be driven.
Output shaft with key
The optional key permits keyed transmission of torques with constant
direction, with low requirements for the shaft-hub connection.
Rexroth EcoDrive Cs Drives
Holding brake data
MSM030B;
MSM030C
0.29 1.27
> 1 > 1
24 ±10%
0.26 0.36
0.03
≤ 25 ≤ 50
≤ 20 ≤ 15
39.2 137
3
44.1 x 10
10000
DOK-ECODR3-DKC**.3-CS*-PR02-EN-P
MSM040B
2.45
> 1
24 ±10%
0.43
0.09
≤ 60
≤ 15
196
3 3
147 x 10
10000