Product Description

The SF-A4.0230.030-00.050 is another mid-size motor from Rexroth Bosch under the SF motor family series. Featuring a built-in single-turn or multi-turn absolute encoder, this motor model allows fine-tuning and accurate adjustment of speed and position at any time. The SF motor series is famous for its capability to deliver high torque at higher nominal speeds. In particular, the SF-A4.0230.030-00.050 has a rated speed of 3000 rpm and a locked-rotor torque of 22 Nm. In locked-rotor condition, the motor draws power from the supply while keeping its rotor stationary. During this operation, the current reaches a value of 14 A. 

Even though the SF-A4.0230.030-00.050 features no radial or axial fans, the optimal design of the stator and rotor allows it to cool efficiently. However, proper handling must still be observed, as its surface can reach as high as 60 degrees Celsius during continuous operation. The SF-A4.0230.030-00.050 also features an output shaft with a balanced keyway and a feather key. Motors with the said kind of shaft can transmit torque from their shaft to a driven component at different positions along it. For this model, the shaft extends from the motor base up to a length of 50 mm with a diameter of 24 mm. For efficient design of power transmission systems, the SF-A4.0230.030-00.050’s rotor moment of inertia, which is equal to 0.0054 kg (m^2). 

In terms of its housing dimensions, the SF-A4.0230.030-00.050 has a maximum length of 341 mm measured from the rotor to the motor’s rear side. Meanwhile, the flange side measurement of this motor is 142 mm, providing an estimated motor volume of 6.876 x 10^6 cubic millimeters. Adding a blocking brake to any motor model will increase its housing length. But since the SF-A4.0230.030-00.050 has no blocking brakes mounted, the original motor length applies.