SF-A4.0125.030-10.070 Bosch Rexroth Indramat
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MPN: 1070082241
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The Bosch Rexroth Indramat SF-A4.0125.030-10.070 is a servo motor from the SF Servo Motors series with a flange size of 142 mm and a mass of 16 kg. It offers a rated speed of 3000 min^-1, an encoder resolution of 8 million increments per revolution, and IP67 protection. The motor also features a locked-rotor torque of 14.5 Nm and a shaft size of 24 by 50 mm.
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Product Description:
The SF-A4.0125.030-10.070 is a brushless servo motor produced by Bosch Rexroth Indramat for the SF Servo Motors series. Serving as an electromechanical actuator, it converts drive current from digital controllers into precise rotary motion for industrial positioning tables, packaging axes, and pick-and-place heads. Its integrated optical encoder feeds high-resolution position data back to the drive, allowing closed-loop speed and torque regulation that is critical for repeatable automation tasks. The motor’s construction supports sealed operation in harsh washdown zones common to food or chemical lines.
At nominal conditions, the rotor stabilizes at 3000 rpm, which is its rated continuous operating speed when driven by a matched inverter. Produced torque is proportional to phase current through a constant of 1.37 Nm/A, giving the controller a straightforward relationship for current loop tuning. During startup or a sudden jam, it can withstand a locked-rotor torque of 14.5 Nm while drawing 10.6 A; these limits protect mechanical couplings and the power stage. Dynamic behavior is shaped by a rotor inertia of 30 × 10⁻⁴ kg·m², enabling rapid acceleration without excessive overshoot. Position feedback is supplied by an 8-million-increment encoder with ±20-arcsecond precision for micron-level repeatability.
A square flange of 142 mm permits direct mounting to geared reducers or linear modules, while the overall body length is 277 mm, allowing compact installation inside tight cell enclosures. The output shaft measures Ø24 × 50 mm and is supplied with a keyway to transmit rated torque without slip. Electrical and feedback conductors exit through a single 6-pin motor connector, simplifying cable management on articulated axes. With a mass of 16 kg, the unit adds manageable static load to vertical slides yet provides enough thermal mass for stable temperature rise. An enclosure classification of IP67 keeps internal windings isolated from coolant splash and airborne particulates encountered on machining centers.
Frequently Asked Questions about SF-A4.0125.030-10.070:
Q: What is the encoder resolution of the SF-A4.0125.030-10.070 servo motor?
A: The SF-A4.0125.030-10.070 motor offers an encoder resolution of 8 million increments per revolution, providing highly detailed position feedback.
Q: What is the rated speed of the SF-A4.0125.030-10.070 motor?
A: This servo motor is rated for a speed of 3000 min^-1, offering efficient performance for many automation tasks.
Q: What is the shaft size of the SF-A4.0125.030-10.070 motor?
A: The shaft size of this model is Ø24 x 50 mm, suiting common industrial coupling requirements.
Q: What protection type is provided by the SF-A4.0125.030-10.070?
A: With an IP 67 protection rating, this motor resists water and dust ingress for improved durability.
Q: What is the locked-rotor torque for the SF-A4.0125.030-10.070?
A: The locked-rotor torque of this servo motor is rated at 14.5 Nm, supporting applications that require high starting torque.
