- Complete 1MS stator and 1MR rotor codes
- Frame length, winding and rotor-bore combination
- Liquid-cooling circuit and thermal monitoring
- Machine-supplied housing, bearings and feedback device
- Connected main-spindle drive and operating duty
1MB family · 1MB140 series
Bosch Rexroth 1MB140 frameless spindle motors
1MB140 is the smallest documented 1MB frame, with B, D, F and H lengths, 4A or 4B windings and configuration-specific speed and torque ratings.
Product identification1MB140
Match the complete nameplate, including every suffix. Ask Litco for current photos of the unit being quoted.
Models
Known 1MB140 catalog pages
Don’t see your configuration?
Send the complete nameplate code so Litco can check availability, condition and compatibility.
Call 210-680-9570Series overview
What 1MB140 identifies
A 1MB140 motor consists of separately identified 1MS stator and 1MR rotor components that the machine builder integrates with the spindle housing, bearings and motor feedback. The manufacturer table spans several length and winding combinations, so the stator code, rotor code and installed spindle design must be compared together.
Ratings, connections, feedback, braking and mechanical options vary by complete type code. Send Litco Automation a clear nameplate photo so the exact configuration and compatible replacement can be confirmed.
Technical specifications
Documented 1MB140 order-code fields
These values come from the preserved type-code reference. They describe documented ordering fields, not a promise that every theoretical combination was produced or is currently in stock.
- Documented frame lengths
- B · D · F · H
- Documented winding codes
- 4A · 4B; availability depends on frame length
- Rated torque range
- 7–34 Nm across documented configurations
- Rated speed range
- 3000–7500 rpm across documented configurations
- Rated power range
- 3.7–10.5 kW across documented configurations
- Maximum-speed range
- 15000–20000 rpm across documented configurations
- Rotor bore shown
- 45 mm
- Construction / cooling
- 1MS stator and 1MR rotor · liquid-cooled stator · IP00 component data
Configuration checklist
Identification guide
Match the whole 1MB140 configuration
- Direct-drive machine-tool spindles
- Turning, milling and grinding machines
- Transfer lines and processing centers
- Special-purpose production machines
Series questions
1MB140 questions
Before Litco pulls a unit
Is 1MB140 enough information to order a replacement?+
No. 1MB140 identifies the series group, but the complete type code still carries the winding, cooling, feedback, mounting, shaft, brake and mechanical options that determine compatibility.
Which 1MB140 fields should I compare first?+
Start with complete 1ms stator and 1mr rotor codes; frame length, winding and rotor-bore combination; liquid-cooling circuit and thermal monitoring. Then preserve the remaining suffix, material number, revision and every installed option or firmware label.
Where is 1MB140 equipment commonly used?+
1MB140 is documented for direct-drive machine-tool spindles, turning, milling and grinding machines, transfer lines and processing centers, special-purpose production machines. The installed machine, axis and connected equipment still control the final replacement decision.
Can Litco evaluate a failed 1MB140 unit?+
Yes. Litco can discuss replacement, repair and exchange paths after reviewing the complete code, application and failure information.
Get a replacement or repair quote.
Call to check stock, condition and lead time. Your part number carries into the form.