Shaft & flange
9 mm (k6) output shaftPlain shaft and Keyed shaft are documented at series level. Match the flange drawing, shaft seal and hub connection before installation.
MDD025 Series · B-length model
MDD025B Indramat Digital AC servo motor
MDD025B is the B-length package within the MDD025 digital ac servo motor range. The model prefix fixes the 025 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 identificationMDD025B
Match the complete nameplate, including every suffix. Ask Litco for current photos of the unit being quoted.
Known exact part-number variations
MDD025B 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.
MDD025B overview
MDD025B is the B-length MDD025 servo motor. Baseline dimension A is 219 mm. The complete suffix determines winding, cooling, feedback, shaft and brake choices.
Model-specific technical data
MDD025B-N-100 manual snapshot
Source: MDD project planning manual, Fig. 4.1, page 36. 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
- MDD025B
- Motor platform
- Digital AC servo motor
- Motor length
- B designation
- Baseline dimension A
- 219 mm
- Reference winding row
- MDD025B-N-100
- Reference nominal speed
- 10,000 rpm
- Continuous torque at standstill
- 0.6 Nm without brake / 0.51 Nm with blocking brake
- Continuous current at standstill
- 2.7 A natural convection
- Theoretical maximum torque
- 2.61 Nm · drive dependent
- Maximum current
- 12.3 A
- Rotor inertia
- 0.32 × 10−4 kg·m²
- Thermal time constant
- 15 min natural
- Published motor mass
- 2 kg
- Published nominal speeds
- 10,000 rpm
- Centering diameter
- 40 mm
- Output shaft diameter
- 9 mm (k6)
- Shaft styles
- Plain shaft · Keyed shaft
Dimensions, winding and cooling
Mechanical interface and speed
Shaft, flange, centering and winding choices
Centering diameter
40 mmThe centering choice is encoded in the complete part number and must match the machine flange or adapter.
Available speeds
10,000 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.
MDD
Motor for digital drive controllers
025
Motor frame / size
B
Motor-length and torque package
Housing design
Natural-convection or supported surface-cooling housing
Nominal-speed code
10,000 rpm
Balance / side-B fields
Balance class and standard design without a side-B shaft extension
Feedback field
Resolver feedback or Resolver feedback with integrated impulse absolute encoder
Centering field
40 mm
Shaft / connector / brake
Mechanical interface, connection direction and holding option
Get a replacement or repair quote.
Call to check stock, condition and lead time. Your part number carries into the form.
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Other MDD025 motor lengths
Model-level planning-manual referenceFig. 4.1 · page 36
Open Original Manual ↗MDD 025 technical and dimensional data, manual pages 36–44. Published choices do not prove present inventory or that every option can be combined. Confirm the complete type code before replacement.