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Allen Bradley RDB Direct Drive Motors RDB-B21529-7B72AA

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RDB-B21529-7B72AA

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The RDB-B21529-7B72AA is a direct-drive servo motor manufactured by Allen-Bradley, part of the RDB Direct Drive Motors series. This unit operates at a voltage of 400V and is designed with a bearingless housing, which enhances its operational durability and efficiency. The base speed reaches up to 750 rpm, making it suitable for high-performance applications.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for RDB-B21529-7B72AA

ManufacturerAllen Bradley
Product TypeDirect-Drive Servo Motor
Product LineRDB Direct Drive Motors
Part NumberRDB-B21529-7B72AA
Weight20.00 lbs (9.07 kg)
Housing TypeBearingless Housing
Voltage400V
Frame Size215 mm
Magnet Stacks2
Base Speed750 rpm
FeedbackMulti-turn, 2048 sin/cos, absolute encoder (EnDat protocol)
EnclosureIP65
ConnectorsCircular (SpeedTec) DIN
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The RDB-B21529-7B72AA from Allen-Bradley is a direct-drive servo motor designed for high efficiency and operational reliability. Operating at a voltage rating of 400V, this motor features a bearingless housing, a design that minimizes wear and reduces maintenance needs. The frame size is 215 mm, making it compatible with a variety of mounting configurations.

This model has two magnet stacks, which assist in delivering significant torque and enhancing motor performance. It operates at a base speed of 750 rpm, positioning it well for tasks requiring rapid response and precise control. Feedback is provided by a multi-turn absolute encoder utilizing the EnDat protocol, which gives precise position information with a resolution of 2048 sin/cos lines, ensuring that the motor delivers accurate performance during operation.

Rated to IP65, the motor has a high enclosure rating, ensuring adequate protection against dust ingress and moisture. This specification permits its deployment in diverse operational environments. Furthermore, the motor connects via circular SpeedTec DIN connectors, facilitating easy installation and secure connections. The RDB-B21529-7B72AA thus combines high performance with robust features, making it suitable for demanding applications.

Revision Part #Also known as
RDB-B21529-7B72AA Ser ARDB-B21529-7B72AA/A, Series A, Rev A
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