SF-A4.0230.030-00.030
SF Servo Motors
The SF-A4.0230.030-00.030, manufactured by Bosch Rexroth Indramat, is part of the SF Servo Motors series. This brushless servomotor incorporates an absolute 8M-step encoder delivering ±20″ angular resolution for high-precision positioning. The motor measures 388 mm in length with its integrated brake (341 mm without) and mounts to a compact ⌀130j6 mm flange. A short overall profile and standardized mechanical connectors simplify retrofit into existing industrial automation systems.
Engineered for robust performance, the motor operates between 1500–6000 min⁻¹ and delivers a locked-rotor torque of 22 Nm at a locked-rotor current of 14 A for up to 30 seconds at 100 k. A torque constant of 1.57 Nm/A ensures linear torque output proportional to current. The integrated brake draws 0.7 A at a 24 ±10% V supply and sustains a holding torque of 18 Nm at 120 °C. The rotor’s moment of inertia of 54 × 10⁻⁴ kg·m² and a precision shaft of ⌀24 × 50 mm balance rapid dynamic response with mechanical stability, while standard flange precision of R and N maintains positional accuracy.
With a mass of 23.7 kg including the brake (22 kg without), this motor delivers high torque density and reduces system footprint. Its brushless design and optimized winding topology maintain stable electrical characteristics under fluctuating ambient temperatures, enhancing long-term reliability. Integrated brake and high-resolution encoder feedback enable seamless closed-loop control and rapid deceleration, making the SF-A4.0230.030-00.030 ideal for demanding precision motion control in machine tools, robotics, and automated assembly lines.
Technical Specifications
Flange Diameter
∅130j6
Holding Brake Rated Current
0.7 A
Holding Torque (brake)
18 Nm (at 120°C)
Locked-rotor Current (30s At 100k)
14 A
Locked-rotor Torque (30s At 100k)
22 Nm
Mass With Holding Brake
23.7 kg
Mass Without Holding Brake
22 kg
Moment Of Inertia Including Encoder
54 × 10⁻⁴ kg·m²
Motor Length With Holding Brake
388 mm
Motor Length Without Holding Brake
341 mm
Rated Speed
1500-6000 min⁻¹
Shaft Dimensions (diameter X Length)
∅24 x 50 mm
Standard Flange Precision
R' and 'N
Supply Voltage For Holding Brake
24 ± 10% V
Torque Constant
1.57 Nm/A
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Warranty
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