Rexroth MHD090B-035-NG0-UN MHD Servo Motor R911277757

Rexroth MHD090B-035-NG0-UN MHD Synchronous Servo Motor

The MHD090B-035-NG0-UN is an MHD permanent magnet synchronous servo motor configuration for maintenance of installed industrial motion-control systems. The requested material reference is R911277757. This page is organized around the full motor designation to help overseas buyers identify the required spare and distinguish it from similar MHD options. Availability and condition are confirmed for the actual unit at quotation; the catalog entry does not represent a reserved stock quantity.

Model Identification and Configuration

The motor size and length designation is MHD090B and the winding code is 035. This configuration specifies digital servo feedback (relative position detection), plain shaft with shaft sealing ring and without holding brake (code 0). Its power-connection arrangement is power and feedback connectors turnable within 270 degrees. Preserve all characters of MHD090B-035-NG0-UN when requesting a quotation; a shortened family name is not enough to identify the required spare.
The winding code is an electrical design identifier, not a rated or maximum speed in rpm. Voltage, current, torque, speed and power ratings depend on the exact winding, thermal operating condition and cooling arrangement. Numerical ratings have not been inferred from another motor on this page. If these values are required for your replacement assessment, send the original nameplate and the relevant machine or motor documentation for comparison.

Feedback, Brake and Cooling Checks

MHD feedback code N identifies digital servo feedback for relative position detection, while feedback code P identifies digital servo feedback with an integrated multiturn absolute encoder. This distinction concerns the motor feedback system; it does not establish compatibility with an unspecified drive. Check the installed drive, firmware, feedback interface, cable wiring and motor parameter set before selecting a replacement.
The output-shaft field identifies a plain or keyed shaft arrangement. Check the actual shaft dimensions, keyway, sealing arrangement and coupling requirements. Brake code 0 indicates a motor without a holding brake. A nonzero brake code identifies a specific holding-brake option, and the brake rating must be checked for the exact motor size and code. Codes 1 and 2 must not be treated as the same option. Confirm the original brake control requirements for an axis that depends on holding position when de-energized.
This model carries housing specification N: housing for liquid cooling; confirm actual cooling arrangement. The housing code and the actual machine cooling installation must be assessed together. A housing suitable for liquid cooling does not prove that a coolant circuit or associated accessories are supplied with the available unit. Do not transfer torque or current values from a different cooling mode. Connector direction, available installation space, mounting flange and centering dimensions also require comparison with the installed motor.

Legacy Maintenance and Replacement Enquiries

An MHD sourcing enquiry may concern a machine tool, packaging line, printing system, handling axis or another installed automation application. Suitability depends on the complete motor, drive and mechanical installation. A similar-looking MHD motor or a matching base frame is not sufficient evidence of interchangeability. Replacement planning should include the machine documentation, original configuration and any special requirements of the axis.
For a quotation, send the complete type MHD090B-035-NG0-UN, reference R911277757, quantity and readable photographs of the original nameplate. Images of the shaft, flange and power and feedback connectors help identify configuration differences. Include the installed drive designation and state whether the requirement is for a maintenance spare or a failed unit. Please identify any cables, mating plugs, keys, couplings or other accessories that must be included.
The model and material-number association has a matching public spare-parts catalog record. This is a catalog reference, not manufacturer confirmation of the identity or revision of a particular unit. Confirm the full designation, material number, hardware condition and completeness against the actual available unit. Any inspection or test information, genuine-part identification and commercial warranty terms must be established in the written offer.

Related MHD Models: Configuration Comparison

These related designations are provided for identification and enquiry comparison. They are separate configurations, not approved substitutes. A matching frame size alone does not establish electrical or mechanical interchangeability.

Compare the full winding, feedback, shaft, brake, connector direction and housing codes against the installed motor. Different suffixes require separate verification even when the motors have similar appearance.

Indicative Price and Supply Terms

The displayed USD 2051.88 per piece is an indicative estimate using related model MHD090B-035-PG0-UN, calculated at 65% of an observed eBay asking price of USD 3156.74. The reference configuration differs in feedback, shaft, brake, winding, connector direction and/or housing as shown by the full code. This estimate is not a statement of price equivalence or compatibility. Final price depends on the exact offered unit, sourcing terms, condition and completeness. Shipping, import charges and taxes are confirmed separately. The reference seller's stock status, test claims and warranty terms do not apply to this listing.
Minimum order quantity is one piece. The monthly supply target is 10 pieces, subject to actual availability. Once an in-stock unit is confirmed, dispatch is normally arranged within one week; lead time for non-stock sourcing is agreed separately. Payment is by T/T with final terms confirmed in the quotation. Protective export packaging and delivery details are agreed for the specific unit before dispatch.
Please request an individual offer for your legacy MHD spare-part requirement. No fixed stock, manufacturer authorization, tested condition, guaranteed compatibility or fixed warranty is implied. Review the full model, material reference, actual-unit photographs and agreed supply scope before approving a purchase.

Series Illustration and Actual-Unit Confirmation

The two motor images are series illustrations supplied for this catalog. They are not photographs verifying the exact motor offered under this page. Any visible nameplate, material number, shaft, connector or brake arrangement in these images is not evidence of the listed model or configuration. Please request photographs of the actual available unit and its complete nameplate before approving a quotation.