Product Description:

The 8JSA42-R0015D700-0 synchronous motor is produced by B&R Automation as part of the 8JS Synchronous Motors series. Designed for direct integration into servo axes and gantry drives, the unit converts electrical energy into rotary motion that can be precisely synchronized with machine cycles. Within an automated cell, the motor provides repeatable torque and speed control, allowing positioning tables, feeders, or indexing stations to follow programmed motion profiles without mechanical slip.

The motor has a size 4 frame and a length code 2, a combination that establishes the flange-to-shaft distance while keeping the mass moderate for midrange load duties. Rated operation is centered on 1500 rpm, so the drive controller can command constant velocity or incremental steps without entering high-frequency regions that cause additional losses. Heat is removed through self-cooling, eliminating the need for external blowers or liquid jackets. Installation is handled through flange mounting, which aligns the stator housing with gearboxes or bearing plates and maintains concentricity between the motor and load. An oil seal at the shaft exit limits lubricant migration during continuous duty. The keyed shaft end transmits torque through positive engagement with couplings or pulleys.

Power and feedback cabling is routed through an angled swivel connector, allowing the connector orientation to accommodate cable runs while relieving strain on the connection point. Rotor position is measured by a resolver with an accuracy of 10 angular minutes, providing sufficient resolution for coarse- to medium-precision axes. The motor is supplied without a holding brake, so vertical loads must be secured by drive-applied torque or an external mechanical lock when power is removed. The absence of an internal brake also eliminates the need to account for brake release timing during programmed motion sequences.