8LSA44.DB045D300-3 by B & R Automation

The 8LSA44.DB045D300-3 is a three-phase synchronous motor produced by B & R Automation within the 8LS Synchronous Motors series. This rotary unit converts electrical energy into controlled torque and speed for positioning tasks in automated machinery such as pick-and-place gantries and packaging axes. It combines feedback electronics with a standard mechanical interface so it can operate with matching servo drives in coordinated multi-axis systems.

The mechanical interface uses a flange diameter of 100 mm, allowing rigid attachment to gearboxes or machine frames. The cooling principle relies on self-cooling through free circulation, so no external blower is required. The motor has a rated speed of 4500 rpm, which is its maximum continuous rotational velocity under nominal load and suits high-speed duty cycles. Position feedback is handled by an Inductive EnDat encoder that resists dust and oil mist while supporting automatic adjustment. Its digital channel resolves motion with 19/12 bits, enabling fine incremental moves without external scaling. A standard holding brake secures the shaft when power is removed. The shaft end has a key for reliable torque transmission, and length code 4 identifies this motor length. Electrical power and feedback pass through a connector, and the unit is supplied without an oil seal for clean environments.

The connector uses an angled swivel orientation, which helps keep cabling clear of neighboring axes. The feedback channel follows EnDat 2.2, so compatible drives can read diagnostics and absolute position without additional wiring. For repeated rotation, the encoder tracks up to 4096 revs in its multi-turn register, which can eliminate homing sequences after startup. The motor uses flange mounting, the product revision is 3, and the standard configuration omits reinforced bearings.