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MSK100B-0450-NN-S2-BG0-RNNN Bosch Rexroth Indramat

MPN: R911313838

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The Bosch Rexroth Indramat MSK100B-0450-NN-S2-BG0-RNNN is an IndraDyn S Synchronous Servomotor in the MSK IndraDyn S Synchronous Motors series with a motor size of 100 and length B. It features an optical, singleturn EnDat2.1 encoder with a resolution of 2048 signal periods and uses natural convection for cooling. The servomotor has a plain shaft, an IP65 protection rating, and operates in ambient temperatures from 0 to 40°C.

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Product Description:

The MSK100B-0450-NN-S2-BG0-RNNN is an IndraDyn S synchronous servomotor from the MSK IndraDyn S Synchronous Motors series by Bosch Rexroth Indramat. It is intended for closed-loop positioning and speed control in automated production cells, where the drive regulates torque, velocity, and shaft angle in real time. Its mechanical layout includes a plain shaft for direct coupling and a rotor with increased concentricity to limit radial runout. The plain shaft is intended for clamping-style couplings rather than keyed torque transfer. The motor is supplied without a holding brake, and the three-phase power connector is located on the housing’s B-side to simplify cable routing. When the axis must remain fixed with power removed, holding force has to come from the machine or the drive system.

Heat dissipation relies on natural convection, so unobstructed airflow keeps winding temperature within its rated range during continuous duty. A frame size of 100 combined with length code B provides a larger active motor body while preserving compatibility with standard MSK mounting patterns. The enclosure has an IP65 rating, which helps keep dust and low-pressure water jets away from internal components. Position feedback is generated by an optical encoder that communicates through the EnDat2.1 interface. Its grating produces 2048 signal periods per mechanical revolution, giving the drive ample interpolation points for smooth velocity control and stable low-speed operation.

The encoder is configured as a single-turn device, so it reports the absolute shaft angle within one mechanical rotation. Because the feedback is absolute within one revolution, the controller can identify rotor position immediately after power-up for commutation. This helps the axis begin controlled motion without relying on an incremental count from a previous cycle. Thermal endurance is supported by insulation class 155, while the permitted surrounding air temperature is 0–40 °C. Winding code 0450 matches the motor to compatible medium-voltage IndraDrive amplifiers. This combination suits servo axes that need repeatable motion in packaging equipment, pick-and-place units, and forming machines.

Cooling
Natural convection
Design
Increased concentricity
Encoder Interface
EnDat2.1
Encoder Resolution
2048 signal periods
Encoder Technology
Optical
Encoder Turn Type
Singleturn
Holding Brake
Without holding brake
Motor Length
B
Motor Size
100
Operating Ambient Temperature Range
0-40°C
Power Connector
B-Side
Product Type
IndraDyn S Synchronous Servomotor
Protection Rating
IP65
Shaft Type
Plain shaft
Thermal/Insulation Class
155
Winding Code
0450
  • MSK100B0450NNS2BG0RNNN
  • MSK100B 0450 NN S2 BG0 RNNN
  • MSK-100B-0450-NN-S2-BG0-RNNN

Frequently Asked Questions about MSK100B-0450-NN-S2-BG0-RNNN:

Q: What type of cooling does the MSK100B-0450-NN-S2-BG0-RNNN motor use?

A: The MSK100B-0450-NN-S2-BG0-RNNN features natural convection cooling, operating without external fans.

Q: What kind of encoder is included on the MSK100B-0450-NN-S2-BG0-RNNN motor?

A: This model is equipped with an EnDat2.1 optical singleturn encoder, offering 2048 signal periods for precise feedback.

Q: Does the MSK100B-0450-NN-S2-BG0-RNNN come with a holding brake?

A: The MSK100B-0450-NN-S2-BG0-RNNN motor is manufactured without a holding brake.

Q: What is the operating ambient temperature range for the MSK100B-0450-NN-S2-BG0-RNNN motor?

A: This motor is rated for operation in ambient temperatures from 0 to 40°C.

Q: Where is the power connector located on the MSK100B-0450-NN-S2-BG0-RNNN motor?

A: The power connector on this model is positioned on the B-side of the motor.


Internal Product Review

  • ‘‘The Bosch Rexroth MSK100B-0450-NN-S2-BG0-RNNN is an IndraDyn S synchronous servomotor with increased concentricity. Natural convection cooling and IP65 protection make the unit well suited for dependable use in enclosed industrial machinery. The optical EnDat2.1 encoder stands out as a strong feature for precise feedback performance.’’

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