SF-A4.0172.030-10.152

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The SF-A4.0172.030-10.152 servo motor delivers a locked-rotor torque of 18 Nm, a torque constant of 1.38 Nm/A, and features a mass of 19 Kg without a holding brake. Belonging to the SF Servo Motors series by Bosch Rexroth Indramat, it boasts a rated speed of 3000 min-1 and a flange diameter of ∅142 mm.

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Product Description:

The SF-A4.0172.030-10.152 Brushless servomotor is manufactured by Bosch Rexroth. The servo motor is designed for use in industrial automation applications requiring precise absolute positioning. The motor's modest size and smooth shaft shape contribute to its consistent performance. Its durable design ensures long-term use and excellent performance in motion control applications.

The SF-A4.0172.030-10.152 brushless servomotor makes sure that automation systems work well and reliably by having a maximum speed of 3000 rpm and a stated torque of 14.5 Nm. The servo motor has a moment of inertia of 40 × 10⁻⁴ kg·m² and a rated current of 10.6 A. It can support accurate profiles of acceleration and deceleration. The overall length of the motor is 309 mm, which makes it good for installations with limited room. The 142 mm flange width makes mounting rigid. It is possible for normal enclosures to fit openings that are 142 mm wide and 177 mm tall. The motor also weighs 19 kg and has a center opening that is threaded with M8 (DIN 332-DS). This makes sure that the mechanical connection works well and the shaft is aligned correctly in industrial settings.

The servo motor SF-A4.0172.030-10.152 features a compact motor design and a smooth shaft type, which makes the installation process simple. The encoder it uses has a precision of 8 million steps per turn and an angular resolution of ±20 angular seconds, allowing for precise placement. The motor's torque output is proportional to the input current and is steady due to its continuous torque constant of 1.37 Nm/A. For absolute positioning applications, its high-resolution encoder guarantees exact feedback. The motor's excellent torque-to-inertia ratio allows it to consistently perform in automation systems.

Brake mass
1.04 kg
Brake supply voltage
24 V ±10%, residual ripple 5%
Encoder type (SF)
Single-turn (STG), optional Multi-turn (MTG)
Encoder type (SR)
Resolver
Flange diameter
ø142 mm
Locked-rotor current
13 A
Locked-rotor torque
18 Nm
Mass without holding brake
19 kg
Maximum length (without brake)
309 mm
Moment of inertia
40 × 10^-4 kg·m^2
Rated brake current
0.7 A
Rated speed
3000 rpm
SF accuracy
±20 angular seconds
SF resolution
8 million increments/rev
Shaft dimensions
ø24 × 50 mm
SR accuracy
±10 angular minutes
SR resolution
8192 increments/rev
Torque constant
1.38 Nm/A
Transferable holding torque (at 120 °C)
18 Nm

Frequently Asked Questions about SF-A4.0172.030-10.152:

Q: How does SF-A4.0172.030-10.152 achieve precise feedback?

A: It uses an SF encoder offering ±20 angular seconds resolution and 8 million increments per revolution for accurate feedback control.

Q: Why is SF-A4.0172.030-10.152 torque constant 1.37 Nm/A?

A: The 1.37 Nm/A torque constant allows smooth control over torque output based on applied current levels.

Q: Do SF-A4.0172.030-10.152 motors support easy mounting and alignment?

A: Yes, with 142 mm flange and Ø165 ± 0.1 mm pitch mounting, the motor allows consistent installation across standard setups.

Q: Does SF-A4.0172.030-10.152 include a holding brake?

A: No, the motor comes without a holding brake and is suitable for systems using external braking mechanisms.

Q: How does SF-A4.0172.030-10.152 ensure rotational smoothness?

A: The moment of inertia rated at 40 × 10⁻⁴ kg·m² ensures stable acceleration and controlled motion transitions.


Internal Product Review

  • ‘‘The SF-A4.0172.030-10.152 (brushless motor) offers 14.5 Nm locked-rotor torque and 10.6 A current. It delivers accurate positioning using a single-turn absolute encoder. The smooth shaft and 142 mm flange ensure precise coupling and alignment. The motor face-to-shaft end distance is 50 ± 0.5 mm.’’

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