Shaft & flange
19 mm output shaftPlain shaft and Keyed shaft are documented at series level. Match the flange drawing, shaft seal and hub connection before installation.
MAC071 Series · B-length model
MAC071B Indramat AC servo motor
MAC071B is the B-length package within the MAC071 legacy analog ac servo motor range. The model prefix fixes the 071 frame and B motor length, but the winding, cooling, feedback, centering, shaft, connector and brake fields still determine the complete replacement.
Call to check stockSend the complete type code so Litco can check the exact shelf configuration and condition
Product identificationMAC071B
Match the complete nameplate, including every suffix. Ask Litco for current photos of the unit being quoted.
Known exact part-number variations
MAC071B exact part numbers
Call to check stock for an exact part.
Send the complete type code and a clear nameplate photo. Litco can check the exact configuration, current availability and repair options.
MAC071B overview
MAC071B is the B-length MAC071 servo motor. Baseline dimension A is 252 mm. The complete suffix determines winding, cooling, feedback, shaft and brake choices.
Model-specific technical data
FS winding code manual snapshot
Source: MAC project planning manual, Fig. 4.1, page 59. Nominal winding speed is not a universal maximum usable speed. Match the drive, load, cooling arrangement and complete suffix.
Continuous ratings use the manual’s 60 K housing-temperature-rise basis. Published motor mass excludes the holding brake and external cooling hardware.
- Model
- MAC071B
- Motor platform
- Legacy analog AC servo motor
- Motor length
- B designation
- Baseline dimension A
- 252 mm
- Reference winding row
- FS winding code
- Reference nominal speed
- 2,000 rpm
- Continuous torque at standstill
- 4.4 Nm natural convection / 6.6 Nm surface cooled
- Continuous current at standstill
- 5 A natural convection / 7.9 A surface cooled
- Maximum peak pulse current
- 25 A
- Rotor inertia
- 9.9 × 10−4 kg·m²
- Thermal time constant
- 45 min natural · 20 min surface cooled
- Published motor mass
- 8.8 kg
- Published nominal speeds
- 2,000 rpm · 3,000 rpm · 4,000 rpm · 6,000 rpm
- Centering diameter
- 95 mm standard
- Output shaft diameter
- 19 mm
- Shaft styles
- Plain shaft · Keyed shaft
Dimensions, winding and cooling
Mechanical interface and speed
Shaft, flange, centering and winding choices
Centering diameter
95 mm standardThe centering choice is encoded in the complete part number and must match the machine flange or adapter.
Available speeds
2,000 rpm · 3,000 rpm · 4,000 rpm · 6,000 rpmThese are published nominal-speed choices for this model. The winding code and selected drive determine the actual configuration.
Feedback, shaft and brake choices
Full type-code guide
Full part-number decoder
Read the tag from left to right
The decoder identifies what each field controls; it does not generate valid combinations. Use the factory type code and option exclusions as one record.
MAC
Motor family for analog drives
071
Motor frame / size
B
Motor-length and torque package
Cooling field
Natural convection or an axial/radial blower arrangement
Winding field
Nominal-speed and winding configuration
Feedback field
Tachometer feedback plus any shaft or mounted encoder option
Centering field
95 mm standard
Shaft / connector / brake
Physical interface and holding option
Special suffix
Factory special design, when present
Get a replacement or repair quote.
Call to check stock, condition and lead time. Your part number carries into the form.
Keep browsing
Other MAC071 motor lengths
Model-level planning-manual referenceFig. 4.1 · page 59
Open Original Manual ↗MAC 071 section; available options on manual page 77. Published choices do not prove present inventory or that every option can be combined. Confirm the complete type code before replacement.