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BrandIndramatBosch Rexroth · Indramat
MAC093 Series · B-length model

MAC093B Indramat AC servo motor

MAC093B is the B-length package within the MAC093 legacy analog ac servo motor range. The model prefix fixes the 093 frame and B motor length, but the winding, cooling, feedback, centering, shaft, connector and brake fields still determine the complete replacement.

The planning manual’s OS winding code row documents 14.5 Nm continuous torque at standstill and 18 A continuous current at a nominal 2,000 rpm winding. Those values describe that published operating row—not every complete MAC093B part number.

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Product identificationMAC093B

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MAC093B inventory items

Inventory records include a Finale catalog export dated 2026-10-23. Choose the complete item below to inquire or make an offer. Call to verify current stock, condition and quantity.

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Known exact part-number variations

MAC093B exact part numbers

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Send the complete type code and a clear nameplate photo. Litco can check the exact configuration, current availability and repair options.

MAC093B overview

MAC093B is the B-length MAC093 servo motor. Baseline dimension A is 316 mm. The complete suffix determines winding, cooling, feedback, shaft and brake choices.

Model-specific technical data

OS winding code manual snapshot

Source: MAC project planning manual, Fig. 6.1, page 97. 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
MAC093B
Motor platform
Legacy analog AC servo motor
Motor length
B designation
Baseline dimension A
316 mm
Reference winding row
OS winding code
Reference nominal speed
2,000 rpm
Continuous torque at standstill
14.5 Nm natural convection / 20 Nm surface cooled
Continuous current at standstill
18 A natural convection / 25 A surface cooled
Maximum peak pulse current
89 A
Rotor inertia
29 × 10−4 kg·m²
Thermal time constant
50 min natural · 45 min surface cooled
Published motor mass
16.5 kg
Published nominal speeds
2,000 rpm · 3,000 rpm · 4,000 rpm · 6,000 rpm
Centering diameter
110 mm standard · 130 mm special
Output shaft diameter
24 mm
Shaft styles
Plain shaft · Keyed shaft
Dimensions, winding and cooling

Mechanical interface and speed

Shaft, flange, centering and winding choices

03

Shaft & flange

24 mm output shaft

Plain shaft and Keyed shaft are documented at series level. Match the flange drawing, shaft seal and hub connection before installation.

04

Centering diameter

110 mm standard · 130 mm special

The centering choice is encoded in the complete part number and must match the machine flange or adapter.

05

Available speeds

2,000 rpm · 3,000 rpm · 4,000 rpm · 6,000 rpm

These are published nominal-speed choices for this model. The winding code and selected drive determine the actual configuration.

Feedback, shaft and brake choices

Configuration choices

Cooling, feedback and holding brake

Cooling

Manage continuous load and machine clearance

  • Natural convection
  • Axial blower
  • Radial blower

External or surface-cooling arrangements can change the installed envelope and are not interchangeable from the model name alone.

Feedback

Keep the drive’s position and speed signal compatible

  • Tachometer feedback
  • Second shaft end or mounted encoder options by type code

Photograph the feedback connector and every suffix after the core model.

Holding brake

Match the installed holding requirement

  • Without holding brake
  • 6.5 Nm holding brake
  • 14 Nm holding brake
  • 22 Nm holding brake

A blocking or holding brake is not a dynamic service brake. Check the published exclusion notes for the exact motor length.

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.

01

MAC

Motor family for analog drives

02

093

Motor frame / size

03

B

Motor-length and torque package

04

Cooling field

Natural convection or an axial/radial blower arrangement

05

Winding field

Nominal-speed and winding configuration

06

Feedback field

Tachometer feedback plus any shaft or mounted encoder option

07

Centering field

110 mm standard or 130 mm special

08

Shaft / connector / brake

Physical interface and holding option

09

Special suffix

Factory special design, when present

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Other MAC093 motor lengths

A-length · 275 mmMAC093A9.2 Nm reference torque · 13 kgB-length · 316 mmMAC093B14.5 Nm reference torque · 16.5 kgC-length · 375 mmMAC093C19.5 Nm reference torque · 22 kg
← Return to all MAC series and models
Model-level planning-manual referenceFig. 6.1 · page 97

MAC 093 section; available options on manual page 115. Published choices do not prove present inventory or that every option can be combined. Confirm the complete type code before replacement.

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