SD-B4.180.020-10.000 Bosch Rexroth Indramat
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MPN: R911000008
The Bosch Rexroth Indramat SD-B4.180.020-10.000 is a brushless servo motor from the SD Magnet Motors series. It has a flange size of 142 mm, uses ferrite magnets, and provides 18.0 Nm torque at standstill. The configuration is basic, without keyway or brake, and the motor has a nominal speed of 2000 rpm with a 24x50 mm shaft.
Internal Product Review
The SD-B4.180.020-10.000 is a brushless servo motor tuned for dependable motion control at a nominal speed of 2000 rpm. Ferrite magnet construction and 18.0 Nm standstill torque give the motor strong low-speed holding capability, a valuable combination for precise servo duty.
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Product Description:
The SD-B4.180.020-10.000 belongs to the SD Magnet Motors series manufactured by Bosch Rexroth Indramat. It is a servo motor intended for precise positioning and velocity control inside automated machinery such as packaging axes, transfer tables, and indexing heads. It is suited to applications that require accurate starts, stops, and speed changes through repeated operating cycles. By delivering commanded torque without intermediate gear reduction, the unit couples directly to mechanical loads, reducing backlash and improving repeatability in closed-loop motion systems that depend on fast feedback from a matching drive controller.
Its mechanical interface uses a flange size of 142 mm, giving stable attachment points for housings that must tolerate production-line vibration. The motor develops 18.0 Nm of torque at standstill, which can be used to calculate holding force during dwell periods. With a nominal speed of 2000 rpm, the rotor can deliver constant power over common drive bus voltages, allowing direct coupling to medium-inertia loads. A cylindrical shaft of 24 × 50 mm transmits output torque while keeping overhang moments within standard bearing limits. This shaft format supports common coupling arrangements for direct-drive installations. Ferrite permanent magnets generate the internal field, so the motor avoids rare-earth sourcing issues and maintains predictable magnet temperature characteristics over a broad duty cycle.
The SD-B4 unit is supplied as basic equipment and arrives without a keyway and without a brake, so external couplings and dynamic drive torque must be used for position holding. This arrangement is suited to installations that already use separate load-holding hardware or software-controlled torque. Its design is classified as a Brushless servo motor, eliminating commutator wear during continuous-duty operation. Accessory holes, sensor extensions, and additional sealing options are not preinstalled, leaving the unit in a straightforward configuration for machine integration in compact motion assemblies.
