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R911246971 (1MR310F-A125)

1MB High-Speed Asynchronous Motors

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The Bosch Rexroth MPN R911246971 (1MR310F-A125) is a frameless spindle motor engineered for applications requiring high power density and precise thermal management. This unit features a 97 kg rotor with a step interference fit, specified for integration into the stator of the main spindle. The 1MR rotor operates at a rated speed of 900 rpm, delivering 35 kW continuous output and 480 Nm rated torque in a 6A stator winding, supported by 61 A current. The stator is liquid-cooled to minimize heat buildup, aided by an aluminum cooling jacket, and is suited for ambient temperatures up to +40°C and installations up to 1000 meters elevation. Maximum permitted speed is 3600 rpm. This model uses a 6B winding configuration in a Size 310, Length F motor variant.

Technical Specifications

Weight
97 kg

Mounting
Stator in the main spindle

Rated Speed
900 rpm

Rated Power
35 kW

Cooling System
Liquid-cooled stator

Rated Current
61 A

Rated Torque
480 Nm

Optimal Operating Temperature
+40 degrees Celsius

Insulation Category
F

Maximum Speed
3600 rpm

Power Connector Minimum Cross Section Area
16 mm2

Height Usage
Less than 1000 meters above sea level

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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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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.