SF-A5.0250.030-04.050 Bosch Rexroth Indramat
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MPN: 1070076508
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The Bosch Rexroth Indramat SF-A5.0250.030-04.050 is a servo motor from the SF Servo Motors series with a flange size of 190 mm and a keyed shaft measuring 32 by 58 mm. It features an absolute encoder with an accuracy of 20 arcseconds and a resolution of 8,000,000 increments per revolution. The motor provides a standstill torque of 25 Nm and has a rated speed of 3000 min^-1.
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Product Description:
The SF-A5.0250.030-04.050 is a servo motor produced by Bosch Rexroth Indramat within the SF Servo Motors series. This motor is intended for closed-loop position and speed control in automated machinery such as pick-and-place axes, tool spindles, and gantry drives. By combining a permanent-magnet rotor, an integrated brake, and high-resolution feedback, it delivers rapid response and precise holding capability for repeatable motion sequences in industrial automation.
The housing is prepared for IM B5 mounting and seats on a 190 mm flange, letting the motor bolt directly to standard machine plates. A keyed shaft is provided for positive torque transfer, while the brake circuit draws 1.33 A from a 24 VDC ±10% supply with 5% ripple to energize its holding brake. Under power-off conditions, that brake delivers 56 Nm so vertical or suspended loads stay in place. Motion feedback is supplied by an absolute encoder with a resolution of 8,000,000 Incr/Rev, and the system’s ±20 arcsec accuracy supports fine positioning without external scales. During continuous operation, the rotor can spin at 3000 rpm, matching common mechanical transmission ratios in mid-power automation lines. Two NTC temperature sensors embedded in the stator enable drive-level thermal monitoring.
Dynamic performance begins with a rotor inertia of 83 ×10-4 kg·m², which provides a balance between acceleration capability and load stability. At a standstill, the electromagnetic package develops 25 Nm, and that torque is available with a standstill phase current of 16.1 A. Because the winding produces 1.44 Nm/A, the controller can relate mechanical output directly to current feedback. Mechanical coupling is handled through a shaft that measures Ø32 × 58 mm, giving sufficient engagement length for standard keyed hubs while minimizing overhung load on the motor bearings.
Frequently Asked Questions about SF-A5.0250.030-04.050:
Q: What type of feedback and resolution does the SF-A5.0250.030-04.050 servo motor provide?
A: This motor uses an absolute encoder with a resolution of 8,000,000 increments per revolution.
Q: What are the shaft dimensions and style of the SF-A5.0250.030-04.050?
A: The SF-A5.0250.030-04.050 is equipped with a keyed shaft measuring 32 mm in diameter and 58 mm in length.
Q: What is the standstill torque of the SF-A5.0250.030-04.050 servo motor?
A: This model provides a standstill torque of 25 Nm for demanding positioning tasks.
Q: What are the brake supply requirements and torque rating for the SF-A5.0250.030-04.050?
A: The brake on this motor delivers a torque of 56 Nm and requires a 24 VDC ±10% supply with up to 1.33 A current.
Q: How many temperature sensors are built into the SF-A5.0250.030-04.050 motor and what type are they?
A: Two NTC temperature sensors are integrated into the SF-A5.0250.030-04.050 for thermal monitoring.
