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R911252113 (1MR310B-A120)

1MB High-Speed Asynchronous Motors

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The R911252113 (1MR310B-A120) is a Bosch Rexroth rotor designed for integration with 1MB series motors, specifically matched to frame size code 310 and length code B. Engineered for use in industrial environments such as machine tools, processing centers, and transfer lines, it supports applications involving grinding, milling, and turning. The rotor operates within liquid-cooled asynchronous motor assemblies, where the coolant absorbs thermal losses from both stator and rotor. The R911252113 (1MR310B-A120) features a step interference fit and an internal diameter of 120 mm, and is intended for use in spindle units with appropriate housing, bearings, and feedback integration. Proper storage requires protection from dust, moisture, and vibration in either vertical or horizontal orientation.

Technical Specifications

Product Type
Rotor for 1MB motors

Use
Industrial applications

Cooling
liquid-cooled

Compatible Motor Frame Size
310

Compatible Motor Frame Length
B

Inside Diameter
120 millimeters

Design
Step interference fit

Storage Orientation
Vertical or Horizontal

Protection Required
Against dust, moisture and vibrations

Handling and Installation Level
Professional

Global Shipping
Available

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1620 Old Apex Road
Cary, NC 27513, USA

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Fax: 1-919-867-6204

[email protected]

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Indramat USA 1 Year Warranty

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We offer a repair service for the 1MR310B-A120.

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

Phone

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.