SR-L1.0023.060-04.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SR-L1.0023.060-04.000 is part of the SR Synchronous Servo Motors series and features a resolver encoder with 8192 increments per revolution and ±10 arcmin accuracy. It provides a stall torque of 2.3 Nm at a rated speed of 6000 rpm and uses an IM B5 mounting type. The built-in brake delivers a torque of 2.5 Nm at 24 VDC and 12 Watts power.
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Product Description:
The SR-L1.0023.060-04.000 synchronous servo motor is produced by Bosch Rexroth Indramat as part of the SR Synchronous Servo Motors series. Employed as a drive element in industrial automation, it converts drive-controller output into precise rotary motion for positioning, indexing, and cyclic processes on assembly lines and handling modules. Its electromagnetic design allows high-speed operation with a compact envelope, making it suitable for tasks that demand repeatable accuracy in confined machine spaces. This layout is useful on compact axes where fast starts, stops, and direction changes must be handled without adding excessive motor mass.
At a rated speed of 6000 rpm, the motor delivers commanded motion rapidly during short indexing sequences. Continuous stall torque is 2.3 Nm, providing holding force without overheating when motion pauses. That torque occurs at a phase current of 3.16 A, so the matching drive must supply this value continuously during steady low-speed operation. A torque constant of 0.73 Nm/A gives a predictable rise in torque as current increases, which supports stable closed-loop control. Total rotating inertia, including the resolver, is 1.3×10⁻⁴ kg·m², and this low value helps the motor respond quickly during rapid acceleration and deceleration. Position feedback is supplied by a resolver with 8192 incr/rev and ±10 arcmin accuracy, allowing the controller to correct position error during speed changes. The IM B5 flange mounts the motor directly to the machine, and the Ø11 × 23 mm keyed shaft transfers torque to couplings or pulleys with a positive mechanical connection.
To secure loads when power is removed, the unit integrates a holding brake rated for 2.5 Nm of static torque. The brake coil operates at 24 VDC and draws 12 W, so the brake release circuit must be supplied from an external low-voltage source. Including the brake assembly, the overall motor length is 263 mm, which should be considered where rear clearance is limited inside compact machine frames. This internal brake can hold a stopped axis in place and reduce the need for a separate external locking device on vertical or inclined arrangements.
