Servo motors |
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With a torque range of 0.1 to 70 Nm, servo motors by ESR cover a wide spectrum of typical servo applications.
The AC servo motors of the MR series impress by their high power density and high torques within compact dimensions; they are suited for universal use.
The scope of delivery is rounded off by DC servo motors RS/RX/AXEM for lower powers.
Characteristics of the AC servo motors
- maintenance-free, since brushless
- high dynamics
- wide speed control range
- high power density through rotor with rare earth magnets
- compact servo motors for universal use
- ball bearings with grease filling for 20,000 operating hours
- integrated resolver for sinusoidal commutation, optional optical encoders (incremental or absolute, single- or multiturn) for highest dynamics and accuracy
- insulation according to insulation class F, DIN VDE 0530
- easy connection of motor and encoder using connectors or terminal boxes
- self-cooling, on request cooling through external fan motor
- design with flange according to DIN 42 677, installation position as required
- form according to DIN IEC 34 part 7, IM B 5
- bearing plates and housings made of high-quality light metal alloy
- speed of up to 15,000 r.p.m. possible
- rotor dynamically balanced according to vibration severity grade R, on request S
- standard shaft end without groove, special version possible, e. g. with keyway
- special motors, e. g. short motors (MR 6), high-grade steel flange and shaft, e. g. for applications in the foods industry (MR 74), hollow-shaft design available
- holding brake optional
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Characteristics of the DC servo motors RS/RX/AXEM
- high dynamics
- wide speed control range
- compact dimensions due to low power/weight ratio
- optional low-cost motors with barium ferrite magnets or motors with very high performance density thanks to samarium cobalt magnets
- long brush life due to generously dimensioned collector and long brushes
- ball-bearings greased for life
- optional with tachogenerator and/or incremental encoder
- smooth running
- insulation according to insulation class F, DIN VDE 0530, optional withstanding tropical conditions
- easy connection of the motor with standard connection cable, optional connectors or terminal box
- self-cooling
- design according to DIN 42 677, installation position as required
- bearing plates and housings made of high-quality light metal alloy
- rotor dynamically balanced according to vibration severity grade N
- standard shaft end without groove, special version possible, e. g. with keyway
- special motors, e. g. short motors, hollow-shaft design available
- holding brake optional
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Characteristics of the gear boxes
- planetary gears, low backlash, one-, two or three-stage, gear ratio 1 : 3 to 1 : 175
- spur gears, gear ratio 1 : 3 to 1 : 70
- angular gear boxes: worm gears, ratio 1 : 6 to 1 : 208, or bevel gears, low backlash, gear ratio 1 : 4 to 1 : 270, with solid or hollow shafts
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| Motor family |
MR 74 |
MR 75 |
MR 77 |
MR 6 |
MR 4 * |
RS/RX/AXEM |
| Motor type |
AC servo motor |
AC servo motor |
AC servo motor |
AC servo motor |
AC servo motor |
DC servo motor |
| Power input |
brushless |
brushless |
brushless |
brushless |
brushless |
with brushes |
| Degree of protection |
IP 65 |
IP 54 (without housing) |
IP 54 (IP 65 optional) |
IP 54 (IP 65 optional) |
IP 65 |
IP 40 .. IP 54 (IP 55 optional) |
| Flange size |
37 .. 240 mm |
55 .. 140 mm |
40 .. 188 mm |
37 .. 190 mm |
55 .. 200 mm |
37 .. 240 mm |
| Rated speed ** |
2000 .. 6000 r.p.m. |
3000 r.p.m. |
1000 .. 8000 r.p.m. |
2000 .. 7000 r.p.m. |
2000 .. 7000 r.p.m. |
2300 .. 4800 r.p.m. |
| Max. speed ** |
on request |
on request |
on request |
up to 12000 r.p.m. |
up to 12000 r.p.m. |
up to 9000 r.p.m. |
| Rated torque |
0.1 .. 70 Nm |
0.4 .. 33 Nm |
0.2 .. 43.5 Nm |
0.05 .. 23 Nm |
0.05 .. 44 Nm |
0.05 .. 4.9 Nm |
| Stall torque |
0.1 .. 115 Nm |
0.5 .. 45 Nm |
0.2 .. 53 Nm |
0.1 .. 32 Nm |
0.15 .. 48 Nm |
0.06 .. 5.3 Nm |
| Shaft power |
0.05 .. 15.7 kW |
0.15 .. 10.5 kW |
0.14 .. 7.5 kW |
0.04 .. 7.2 kW |
0.04 .. 10 kW |
0.02 .. 1.5 kW |
| Winding type |
distributed |
concentrated |
concentrated |
distributed |
distributed |
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| Data sheet |
6674.260 |
6675.260 |
6677.260 |
6612.164 (German) |
6660.160 (German) |
6508.160 (German) |
| Matching servo drives |
TrioDrive D/xS, MidiDrive D/xS, TrioDrive D, MidiDrive D, MaxiDrive,
TrioDrive A, MidiDrive A, TrioDrive, MidiDrive, Multi-axis servo system |
UnoDrive, DC Compact, Multi-axis servo system |
* only as spare parts
** higher speed on request
Further information is given in the individual data sheets which can also be sent to your company address by request.
Just drop a line or give us a call: e-mail: vt@esr-pollmeier.de, tel: +49 6167 9306-0.
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