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R911246986 (1MS312B-4A-A1)

1MB High-Speed Asynchronous Motors

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1 Year Warranty Included
Free Ground Shipping

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3 Minutes 46 Seconds

The R911246986 (1MS312B-4A-A1) is a Bosch Rexroth motor stator engineered for use with 1MB motors, specified by a B frame length, 312 frame size, and 4A winding code. This stator is implemented in applications demanding high power density, including machining centers and grinding machines. It incorporates liquid cooling to transfer rotor power losses to the coolant via an integrated aluminum cooling jacket. A 1.5-meter fixed cable is mounted at the stator end with a larger output diameter. Installation and handling must follow the technical guidelines and be performed by qualified personnel.

Technical Specifications

Application
1MB Motors

Frame Size
312

Frame Length
B

Winding Code
4A

Cooling Method
Liquid Cooling

Power Density
High

Cooling Jacket Material
Aluminium

Electrical Connection
Via 1.5 Meter Cable

Compatible Drive Controllers
Yes

Shipping
Global

Trained Personnel Requirement
Yes

Modification
Not Permitted

Damage Use
Not Permitted

Hardware Installation
According to Instructions

Firmware Programming
Prior to Motor Startup

Safe Assembly, Installation and Ambient Conditions
Described in Documentation.

1MS312B4AA1

1MS312B 4A A1

1ms312b-4a-a1

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Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the 1MS312B-4A-A1.

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