MHD115B-024-PG1-RA Bosch Rexroth Indramat
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MPN: R911297890
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The Bosch Rexroth Indramat MHD115B-024-PG1-RA is a servo motor from the MHD Synchronous Motors series featuring digital servo feedback with an integrated encoder and optical measurement. It offers a continuous standstill torque of 50.0 Nm, includes a holding brake with 70.0 Nm torque, and has a protection rating of IP65. The motor uses natural convection for cooling and operates within an ambient temperature range of 0 to 40 °C.
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Product Description:
Bosch Rexroth Indramat manufactures the MHD115B-024-PG1-RA, a member of the MHD Synchronous Motors series used to drive axes that require closed-loop position and speed control in automated machinery. This servo motor converts electrical energy from a compatible drive into mechanical rotation for indexing, feed, and positioning tasks. Its integrated digital servo feedback encoder supplies absolute position data to the control loop for precise motion execution. That feedback allows the controller to track rotor position during operation and after power cycling.
It delivers a continuous standstill torque of 50.0 Nm, so the rotor can hold static loads without exceeding thermal limits. The enclosure is rated IP65, indicating dust-tight construction and resistance to low-pressure water jets, which permits cabinet-free mounting near the work area. A flange size of 192 mm and a centering diameter of 180 mm provide the interface dimensions for rigid attachment to gearboxes or machine frames. These mounting dimensions help align the motor housing accurately during installation. Position feedback uses an optical measurement method with a system accuracy of ±0.5 angular minutes, keeping interpolation error within tight tolerances during coordinated multi-axis motion.
The built-in holding brake supplies 70.0 Nm of static torque to secure vertical loads when power is removed. Safe operation is maintained between 0 to 40 °C ambient, while storage and transport temperatures can range from -20 to +80 °C. Installation is permitted up to 1000 m above mean sea level, after which derating may be required. Heat is dissipated by natural convection through the aluminum housing, so no separate fan is required for basic cooling. Class F insulation withstands winding temperatures up to 155 °C. A shaft seal protects the plain shaft from coolant or dust ingress, the power connector is oriented to the right, and the feedback system supports absolute position detection beyond 4096 revolutions. Winding code 024, motor length B, and size 115 identify this motor configuration.
Frequently Asked Questions about MHD115B-024-PG1-RA:
Q: What is the operating temperature range for the MHD115B-024-PG1-RA motor?
A: The MHD115B-024-PG1-RA serves in environments between 0 and 40 °C during operation.
Q: What is the holding brake torque for the MHD115B-024-PG1-RA servo motor?
A: This model is equipped with a holding brake that provides a torque of 70.0 Nm.
Q: What type of shaft does the MHD115B-024-PG1-RA have?
A: The shaft on this model features a plain design and includes a shaft seal.
Q: What type of encoder is used in the MHD115B-024-PG1-RA and what is its position detection capability?
A: The encoder utilizes digital servo feedback with an integrated optically measured encoder and offers absolute position detection for over 4096 revolutions.
Q: What is the cooling type and level of protection for the MHD115B-024-PG1-RA servo motor housing?
A: The housing is cooled by natural convection and offers an IP65 degree of protection for use in dust and splash-prone areas.
