Product Description:

The SF-A3.0093.060-14.000 is a brushless servo motor manufactured by Bosch Rexroth Indramat within the SF Servo Motors series. As an electromechanical actuator, it converts drive current into precise rotary motion so that packaging stations, gantry axes, and material-handling modules can follow command profiles with tight speed and position tolerances. Its design couples a permanent-magnet rotor with an integrated feedback device, preparing the motor for synchronous operation under a Rexroth drive controller.

The rated mechanical speed is 6000 rpm, allowing the shaft to follow high-velocity command sequences without entering field weakening. Torque production scales with phase current by the torque constant of 0.67 Nm/A, so a 10 A drive output can generate roughly 6.7 Nm of electromagnetic torque. The rotor and embedded magnets contribute a reflected inertia of 16 × 10⁻⁴ kg·m², a value chosen to balance fast acceleration with control loop stability. Housing seals and cable glands meet IP67, permitting washdown installation and temporary immersion. When motion is stalled, the drive can deliver a locked-rotor current of 13.5 A to overcome peak load, producing 9.1 Nm of static torque. Mechanical interfacing is handled by a 116 mm flange and a 19 × 40 mm keyed shaft that transmits motion to couplings or pulleys.

Position holding during power loss is managed by a spring-applied brake that furnishes 10.0 Nm of static torque. The brake coil is energized at 24 V DC and draws 0.66 A, while its 0.6 kg mass and 1.06 × 10⁻⁴ kg·m² inertia add minimal load to the drive train. A high-resolution optical encoder delivers 8,000,000 increments per revolution with an angular accuracy of ±20 arcsec, enabling very fine positioning when coupled with linear mechanics. This combination supports vertical-axis holding, restart without homing, and accurate contouring during coordinated motion.