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R911246965 (1MR310D-A094)

1MB High-Speed Asynchronous Motors

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The R911246965 (1MR310D-A094) is a frameless rotor component for asynchronous main spindle motors, specified for use with compatible stators to form a complete drive. It features class F insulation suitable for operation in humid environments, though it should be protected from dust and direct moisture. The operational temperature range is 0 to +40°C, and the rotor supports a maximum speed of 3200 revolutions per minute. Key specifications include a motor length of type D, a motor size of 310, and a rotor design with step interference fit. The rotor contains three pole pairs, an internal diameter of 94 mm, a rated power output of 28.5 kW, 340 Nm rated torque at 800 RPM, and 3.8 kW power loss. The drive controller must be appropriately programmed prior to activation, and reference to technical documentation is required for correct component matching and operation.

Technical Specifications

Insulation Class
F

Suitable for Humid Conditions
Yes

Protection Class
Low

Type
Rotor for Main Spindle Motor

Frame
Frameless

Environmental Conditions for Handling
Specific

Operating Temperature Range
0 to +40 degrees Celsius

Maximum Speed
3200 revolutions per second

Pole Pairs
3

Internal Diameter
94 mm

Power Loss
3.8 kW

Rated Power
28.5 kW

Rated Torque
340 Nm

Rated Speed
800 RPM

Inductivity of Stator Winding
1.85 ohms at 6B winding

Torque Constant
4.81 Nm/A at 20 degrees Celsius

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1620 Old Apex Road
Cary, NC 27513, USA

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International: 1-919-443-0207

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Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

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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.