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R911262085 (1MR310D-A118/S026)

1MB High-Speed Asynchronous Motors

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The R911262085 (1MR310D-A118/S026) is a rotor from the 1MR series, specifically configured for Bosch Rexroth 1MB frameless spindle motors. With a mass of 80 kg and a moment of inertia of 0.492 kg·m², this rotor integrates a sleeve, laminated core, and balancing rings to maintain operational balance. It employs a step interference fit, which assists in precise mounting and dismounting, promoting enhanced spindle rigidity. The unit relies on an air gap for heat transfer from rotor to stator, facilitating heat dissipation through liquid cooling. It is rated IP00 as per IEC 60529, indicating no formal ingress protection, and thus requires additional shielding in humid or wet environments. The rotor is specified for operation within a temperature range of 0°C to 40°C, with Motor Length D and Motor Size 310.

Technical Specifications

Product Type
Rotor

Magnet Material
Sleeve with a Laminated Core and Balancing Rings

Frame Size
310

Frame Length
D

Inner Diameter
118mm

Weight
80kg

Moment of Inertia
0.492 kgm2

Cooling System
Liquid Cooled

Protection Class
IP 00

Optimal Ambient Temperature
0oC to 40oC

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