MSK071E-0300-FN-S2-UP2-RNNN Bosch Rexroth Indramat
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MPN: R911339378
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The Bosch Rexroth Indramat MSK071E-0300-FN-S2-UP2-RNNN is an IndraDyn S Synchronous Servomotor with a shaft keyway and motor size 071. It uses liquid cooling, features increased concentricity design, and has an IP65 protection rating. This model is equipped with an optical singleturn encoder with EnDat2.1 interface and a holding brake torque of 30 Nm.
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Product Description:
The MSK071E-0300-FN-S2-UP2-RNNN is a synchronous servomotor manufactured by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. It converts drive current into precisely regulated torque and position for automation lines, robotics joints, and machine-tool spindles. The unit is supplied for installations that use forced FN liquid cooling, enabling continuous high output from a compact 071-frame motor while maintaining thermal stability during demanding duty cycles. Its closed-loop response supports precise speed regulation during contouring, indexing, and synchronized motion tasks. The motor is also suitable for installations where a compact housing must deliver steady output over long operating periods.
The motor uses Liquid cooling, which matches the FN cooling type and supports rated current without external fans. Rotor and flange machining with Increased concentricity minimizes runout when the shaft is connected to precision reducers. Feedback is generated by an optical encoder that uses the EnDat2.1 digital interface; with 2048 signal periods in its single-turn design, the drive can interpolate fine position steps for smooth speed control. This encoder arrangement gives the drive immediate rotor position data for stable commutation and accurate motion control. The housing is sealed to IP65, which helps protect internal components from dust and low-pressure water. The encoder connector can be rotated 240° to simplify cable exits in crowded cabinets. Winding code 0300 indicates the electrical values used by compatible IndraDrive supplies, and the size 071, length E build balances torque with moderate rotor inertia. An electrically released holding brake is integrated for vertical or safety-critical axes.
During power-off conditions, the brake delivers 30 Nm of holding torque to prevent load drift on suspended movements. Power is transmitted through a shaft with keyway, which helps prevent slip during reversing duty cycles. The motor operates in ambient temperatures of 0–40 °C, and it uses insulation class 155, providing thermal headroom if coolant flow is briefly reduced. That combination supports use on vertical axes and other applications where the load must remain in place when power is removed.
Frequently Asked Questions about MSK071E-0300-FN-S2-UP2-RNNN:
Q: What type of cooling is used in the MSK071E-0300-FN-S2-UP2-RNNN motor?
A: This model is equipped with liquid cooling to efficiently dissipate heat during operation.
Q: What is the protection rating of the MSK071E-0300-FN-S2-UP2-RNNN motor?
A: The MSK071E-0300-FN-S2-UP2-RNNN operates with a protection rating of IP65, ensuring strong resistance against dust and water ingress.
Q: What encoder technology and interface does the MSK071E-0300-FN-S2-UP2-RNNN motor use?
A: This motor features an encoder using EnDat2.1 interface with optical technology and a resolution of 2048 signal periods.
Q: What kind of holding brake does the MSK071E-0300-FN-S2-UP2-RNNN have and what is its torque?
A: A holding brake with 30 Nm torque is present and it is electrically released in this model.
Q: What is the allowed operating ambient temperature for the MSK071E-0300-FN-S2-UP2-RNNN motor?
A: The operating ambient temperature range for this motor is from 0°C to 40°C.
