MSK071C-0300-NN-M1-UG2-NNNN Bosch Rexroth Indramat
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MPN: R911322703
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The Bosch Rexroth Indramat MSK071C-0300-NN-M1-UG2-NNNN is a synchronous servomotor from the MSK IndraDyn S Synchronous Motors series. It features natural convection cooling and a multiturn absolute optical encoder with Hiperface interface. The motor has a 30 Nm electrically-released holding brake and an IP65 protection rating.
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Product Description:
The MSK071C-0300-NN-M1-UG2-NNNN is an IndraDyn S synchronous servomotor manufactured by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. It is intended for precise motion control in automated equipment where compact servo axes are required. The motor uses a size 071 frame with a length C stator package, giving a compact footprint for multi-axis machines. A plain shaft allows direct coupling to drive elements, and an electrically released holding brake provides load retention when power is removed. The unit uses natural convection cooling, so it can be mounted without external blowers when thermal loading stays within its rating.
The brake generates 30 Nm of torque, giving adequate static holding force for vertical or indexing duties. Heat is removed through natural convection, meaning enclosure airflow or ambient circulation carries energy away without fans. An enclosure protection level of IP65 seals the housing against dust ingress and low-pressure water jets, so the motor can be installed close to process zones. Position feedback is provided through a rotatable 240° connector and a Hiperface interface, allowing hybrid power-and-data cabling to a Rexroth drive. The rotatable connector also helps route cables in confined spaces without forcing a fixed exit direction. Inside the optical encoder, a fine-pitch scale delivers 128 signal periods per mechanical revolution, supplying high-resolution velocity and position data for tight servo loops.
The encoder also stores absolute position across multiple turns, identified as multiturn absolute, so homing cycles are unnecessary after shutdowns. This helps the axis return to operation quickly after a restart. Continuous operation is permitted within an ambient range of 0 to 40 °C, which aligns with typical factory floor temperatures. Windings are built to insulation class 155, allowing conductor temperatures up to 155 °C before degradation. The 0300 winding code matches the motor’s inductance and resistance to standard IndraDrive amplifiers.
Frequently Asked Questions about MSK071C-0300-NN-M1-UG2-NNNN:
Q: What type of shaft does the MSK071C-0300-NN-M1-UG2-NNNN motor have?
A: This model comes equipped with a plain shaft configuration.
Q: What is the holding brake torque and release method on the MSK071C-0300-NN-M1-UG2-NNNN?
A: The holding brake on this model provides a torque of 30 Nm and is electrically released.
Q: What type of encoder and interface are used in the MSK071C-0300-NN-M1-UG2-NNNN?
A: The MSK071C-0300-NN-M1-UG2-NNNN uses an optical multiturn absolute encoder with Hiperface interface for precise position feedback.
Q: How is the MSK071C-0300-NN-M1-UG2-NNNN motor cooled?
A: This motor features natural convection cooling and requires cooling function FN for proper operation.
Q: What is the protection rating of the MSK071C-0300-NN-M1-UG2-NNNN motor?
A: With an IP65 protection rating, this motor is protected against dust and low-pressure water jets.
