Gerotor Hydraulic Motor MS 400 SH/4 by M+S Hydraulic (Bulgaria)

Product Description: The MS 400 SH/4 gerotor hydraulic motor from the renowned manufacturer M+S Hydraulic is a reliable low-speed unit designed for heavy-duty operation. The motor has a displacement of 397 cm³/rev and a maximum operating power of 11 kW, making it an optimal choice for special machinery and industrial installations. The ports are side-mounted with G1/2" threads; the drain port has a G1/4" thread. The MS series is distinguished by increased durability under constant load, operation with thin oil, and frequent changes in rotation direction.

Design Features

The motor's mechanical design includes robust tapered roller bearings that can withstand static and dynamic radial loads. A special gerotor scheme and well-thought-out design minimize system losses, ensuring stable operation even at high operating pressures.

Shaft and Seals

• Splined shaft ø1¼ with parallel key 14T ANS B92.1-1970.
• Other shaft options are available upon request (see specifications in PDF).

Applications

• Various special machinery and industrial equipment.

Key Parameters

• Displacement: 397 cm³/rev.
• Max. operating speed: 865 rpm.
• Max. torque: 43 Nm.
• Max. operating power: 11 kW.
• Max. operating pressure: 160 bar.
• Flow rate: 75 l/min.
• Weight: 13.1 kg.
• Splines: ø1 1/4", 14 splines: SH.
• Detailed information: PDF.

Operating Recommendations

• Brief high speed and simultaneous brief high pressure should not occur synchronously.
• Recommended filtration corresponds to ISO 20/16 cleanliness code; nominal filtration 25 microns or higher.
• It is recommended to use high-quality mineral-based hydraulic oil HLP (DIN 51524) or HM (ISO 6743/4).
• Recommended minimum kinematic oil viscosity is 13 mm²/s (70 SUS) at 50°C.
• Maximum recommended system operating temperature is 82°C.
• To ensure optimal service life, before operating under maximum load, fill the system with fluid and run at moderate load and speed for 10–15 minutes.

Manufacturer: M+S Hydraulic (Bulgaria).

Product Category: Tractors, Motorcycles, ATVs, Boats (Vehicle) > Hydraulic Systems > Hydraulic Motors.

This MS 400 SH/4 hydraulic motor is ideal for replacement or installation in assemblies requiring reliability under variable operating conditions and high loads. Thanks to precise tolerances and proven materials, you will achieve stable operation, reduced energy losses, and a long service life.

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