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R911247774 (1MR240B-A087)

1MB High-Speed Asynchronous Motors

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The Bosch Rexroth MPN R911247774 (1MR240B-A087) is a rotor from the 1MR series, engineered for direct drive applications in 1MB frameless spindle motors used in milling, grinding, and turning equipment. The rotor features a laminated core with a sleeve and a step interference fit, and includes balancing rings with tapped holes to enable vibration grading as specified by DIN VDE 0530. With an inside diameter of 87 mm, motor size 240, motor length B, and a moment of inertia of 0.135 kgm², this model supports efficient power transmission. The red lacquer-coated, corrosion-protected core increases environmental resistance, but the IP 00 rating requires external protection in humid or dusty conditions.

Technical Specifications

Rigidness
High

Power Density
High

Usage
Turning, grinding, and milling operations

Parts
Sleeve and laminated core

Balancing Rings
Available with tapped holes

Mounting
Graduated fitting surfaces

Inside Diameter
87mm

Moment of Inertia
0.135 kgm2

Power Loss Removal
Stator's air gap

Corrosion Protection
Red lacquer coating pre-applied

Ingress Protection Rating
IP 00

Global Shipment
Available

Common Misspellings

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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Warranty

Indramat USA 1 Year Warranty

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We offer a repair service for the 1MR240B-A087.

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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.