Product Description:

Bosch Rexroth Indramat manufactures the SF-A4.0172.030-14.037 as part of its SF Servo Motors series. The unit is an electromechanical actuator that delivers precise speed and torque control for automated conveyors, pick-and-place heads, and indexing tables. By combining a permanent-magnet rotor with closed-loop feedback and an integral brake, the motor lets industrial controllers drive, hold, and accurately reposition mechanical loads during repetitive production cycles. It interfaces with Rexroth drives over standard power and encoder cabling, forming a matched axis for multi-motor installations.

At its rated operating point, the shaft can run at 3000 rpm, providing a balance between linear speed and torque for medium-inertia loads. A torque constant of 1.38 Nm/A links commanded phase current to developed torque, so the drive only needs moderate current rise to reach the required force. When the rotor is blocked, the winding draws 13 A; this locked-rotor current pairs with a starting torque of 18 Nm, illustrating stall capability during indexing starts. For static holding, the spring-applied brake delivers 18 Nm while energized by a control line at 24 VDC. Because the brake coil only needs 0.7 A, panel power supplies remain small and generate limited heat.

A square flange of 142 mm centers the housing to gearboxes or machine plates, and the overall stack length of 356 mm determines cabinet depth once the connector is fitted. The rotor stores kinetic energy equal to 40 ×10⁻⁴ kg·m², which dampens speed ripple yet allows quick acceleration when paired with the specified drive. Power is transmitted through a keyed shaft that measures 24 × 50 mm, giving ample diameter for rigid couplings without oversized bearings. The motor may be installed wherever ambient air stays at or below 40 °C. Staying within this limit preserves insulation life and keeps the brake torque stable.