Servo Motors and Gear Boxes
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 for lower powers.
Characteristics of the AC Servo Motors
- Maintenance-free, since brushless
- High dynamics
- Wide speed control range
- High power density due to rotor with rare earth permanent 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 as specified in DIN EN 60034-14 (VDE 0530-14) or vibration severity grade N according to DIN ISO 2373
- Standard shaft end without groove, special version possible, e. g. with keyway
- Special motors, e. g. short motors (MR 68), high-grade steel flange and shaft (EHEDG-compliant Hygienic Design), e. g. for applications in the foods industry or pharma industry (ME 47), hollow-shaft design available
- Holding brake optional
Characteristics of the DC Servo Motors
- 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 42 948, 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
Technical Specifications of the Servo Motors (Overview)
| Motor family | MR 74 | MR 75 | MR 77 | MR 63 | MR 68/69 | MB 22 |
|---|---|---|---|---|---|---|
| Motor type | AC servomotor | DC servo motor | ||||
| Power input | brushless | with brushes | ||||
| Degree of protection | IP 65 | IP 54 (without housing) | IP 54 (IP 65 optional) | IP 64 / IP 54 (IP 65, IP 67 optional) | IP 54 (IP 65 optional) | IP 40 .. IP 54 (IP 55 optional) |
| Flange size | 37 .. 240 mm | 55 .. 140 mm | 40 .. 188 mm | 55 .. 142 mm | 37 .. 190 mm | 37 .. 240 mm |
| Rated speed * | 2000 .. 6000 r.p.m. | 3000 r.p.m. | 1000 .. 8000 r.p.m. | 2000 .. 6000 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 | 0.2 .. 22 Nm | 0.05 .. 23 Nm | 0.05 .. 4.9 Nm |
| Stall torque | 0.1 .. 115 Nm | 0.5 .. 45 Nm | 0.2 .. 53 Nm | 0.3 .. 24 Nm | 0.1 .. 32 Nm | 0.06 .. 5.3 Nm |
| Shaft power | 0.05 .. 15.7 kW | 0.15 .. 10.5 kW | 0.14 .. 7.5 kW | 0.1 .. 6.3 kW | 0.04 .. 7.2 kW | 0.02 .. 1.5 kW |
| Winding type | distributed | concentrated | concentrated | concentrated | distributed | – |
| Data sheet | 6674.260 | 6675.260 | 6677.260 | 6663.260 | 6612.164 (in German) | 6508.160 (in German) |
| 3D CAD data | download | download | download | on request | on request | – |
| Matching servo drives | Servo Drives New Generation, TrioDrive D/xS, MidiDrive D/xS, TrioDrive A, MidiDrive A, Multi-axis servo system |
UnoDrive, Multi-axis servo system | ||||
* higher speed on request
Further information is given in the individual data sheets. Please contact us if you have more specific questions – e-mail: vt@esr-pollmeier.de, phone: +49 6167 9306-0.
Characteristics of the Gear Boxes
- Planetary gears, low backlash, one-, two or three-stage, gear ratio 1 : 3 to 1 : 512
- 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
Further information is given in the individual data sheets:
- Data sheet 0041.151 – PNS Planetengetriebe (in German)
- Data sheet 0041.152 – PNP Planetengetriebe (in German)
- Data sheet 0071.151 – PWK Planetengetriebe (in German)
- Data sheet 0071.152 – PWS Planetengetriebe (in German)
- Data sheet 0071.153 – PWP Planetengetriebe (in German)
- Data sheet 0071.154 – PWB Planetengetriebe (in German)
Please contact us if you have more specific questions – e-mail: vt@esr-pollmeier.de, phone: +49 6167 9306-0.