8JSA51.R0045D000-0 B & R Automation
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The 8JSA51.R0045D000-0 is a synchronous motor manufactured by B & R Automation and is part of the 8JS Synchronous Motors series. This motor features flange mounting, a smooth shaft end, and a nominal speed of 4500 RPM. It uses a resolver encoder system with an accuracy of 10 angular minutes and is self-cooled with an angled swivel connector.
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Product Description:
The 8JSA51.R0045D000-0 is a synchronous motor produced by B&R Automation within the 8JS Synchronous Motors series. It serves as the rotary actuator on packaging, handling, and assembly lines, converting controlled three-phase power from a matched drive into precise motion. Length 1 in the series coding indicates a compact housing depth and torque class suited to medium-capacity machine axes. The unit integrates with B&R ACOPOSmulti drives and fits distributed cabinet layouts where servo nodes are placed close to the load, which can shorten motor cable runs. Because the rotor remains synchronized with the commanded electrical field, the motor supports stable speed behavior during indexing and positioning tasks.
The motor delivers a nominal speed of 4500 RPM, providing fast yet repeatable motion without exceeding stator limits. Heat is removed by a self-cooling design that relies on surface convection, so no external fan is required. This cooling method supports continuous operation while keeping the installation simple. Position feedback comes from a resolver that tolerates shock and temperature changes; its resolution is 10 angular minutes, supporting tight velocity loops. Mechanical installation uses flange mounting, which helps maintain alignment during acceleration. The motor suits compact axes where direct mounting and steady feedback are important to repeatable motion.
The power and feedback leads exit through an angled swivel connector, allowing cable rotation and easier routing in confined panels. A smooth shaft accepts clamp or compression couplings without a keyway, which can help reduce play at the coupling interface. Frame coding lists motor size 5, giving the unit a mid-range mechanical envelope for general axis applications. The motor is supplied without a holding brake, so any vertical load must be restrained by the drive or an external locking device. This arrangement is often used where the axis is free to coast at shutdown or where a separate holding mechanism is already installed.
Frequently Asked Questions about 8JSA51.R0045D000-0:
Q: What type of electrical connection is provided on the 8JSA51.R0045D000-0 motor?
A: The 8JSA51.R0045D000-0 motor features a swivel connector with an angled connection direction for flexible installation.
Q: What type and accuracy of encoder is used in the 8JSA51.R0045D000-0?
A: This model is equipped with a resolver encoder system that provides an accuracy of 10 angular minutes.
Q: How is the 8JSA51.R0045D000-0 motor cooled during operation?
A: The 8JSA51.R0045D000-0 operates with self-cooling, ensuring the motor dissipates heat without extra cooling equipment.
Q: Is a holding brake present on the 8JSA51.R0045D000-0 motor?
A: This synchronous motor does not include a holding brake feature.
Q: What is the nominal speed of the 8JSA51.R0045D000-0 motor?
A: The nominal speed for the 8JSA51.R0045D000-0 is rated at 4500 RPM.
