Motori idraulici BMR/OMR/JS/BM2 serie BMR Orbit

BMR / OMR / JS / BM2 Series Overview

The BMR hydraulic motor is one of RECTE's orbital motor configurations for applications where output torque, pressure capability, and installation flexibility are important.

Compared with the BM1 series, the BM2 range extends to 500 ml/r and provides higher rated pressure and torque at many corresponding displacement sizes. For example, the 100 ml/r BM2 configuration is rated for up to 14 MPa continuous pressure and 17 MPa intermittent pressure, with up to 178 N·m continuous torque and 216 N·m intermittent torque.

For other configurations, view RECTE's motori idraulici orbitali range or see the complete selection of motore idraulico all'ingrosso products.

Maximum values vary according to displacement and operating conditions. Use the individual displacement data below for preliminary model selection.

What Sets the BM2 Series Apart

The BM2 should not be treated simply as another version of the BM1. Its specifications provide more room for applications where pressure and torque requirements move beyond the typical BM1 operating range.

Higher Pressure Capability

The BM2 series reaches up to 14 MPa continuous pressure and 17 MPa intermittent pressure at the smaller displacement sizes. This gives the series a stronger performance profile for hydraulic systems that operate under higher pressure loads.

The allowable pressure still depends on displacement. Larger displacement motors have progressively lower pressure limits, so the complete performance table should be checked before selecting a model.

Higher Torque Across the Range

The BM2 series provides up to 464 N·m continuous torque and 500 N·m intermittent torque at the 500 ml/r configuration. At 100 ml/r, the continuous and intermittent torque ratings are 178 N·m and 216 N·m respectively.

This makes torque output a useful starting point when selecting the BM2 for winches, conveyors, augers, cutting equipment, and other rotary drives.

50–500 ml/r Displacement Options

The BM2 range includes 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, and 500 ml/r options. The additional 500 ml/r configuration extends the series into a larger displacement range than the BM1 family.

This allows the motor to be selected according to the required balance between hydraulic flow, rotational speed, and output torque rather than forcing one motor size across different machine designs.

BM2 Technical Specifications

Note: The published performance values are dependent on displacement and operating conditions. Final motor selection should be checked against the actual hydraulic circuit, duty cycle, and installation requirements.

Mechanical Configuration Options

BM2 motors are available with different connection arrangements to accommodate different machine layouts. The current product specification specifically identifies multiple options for the flange, output shaft, and oil-port configurations.

Flange Configuration

The mounting flange should be matched to the machine's existing mounting interface. Key dimensions include:

• Flange type
• Pilot diameter
• Bolt-hole pattern
• Mounting dimensions
• Flange orientation

Output Shaft

The shaft configuration should correspond to the driven component and required load conditions. Depending on the selected version, confirm:

• Shaft diameter
• Shaft type
• Key or spline arrangement
• Shaft extension
• Radial and axial load requirements

Oil Port Configuration

Oil ports should be selected according to the hydraulic circuit and existing hose or fitting arrangement.

Relevant information includes:

• Port type
• Port size
• Port position
• Connection configuration
• Hose and fitting requirements

Exact mechanical dimensions should be verified against the applicable BM2 drawing before ordering.

Rotation, Back Pressure and Operating Conditions

The BM2 is designed for hydraulic rotary applications requiring forward and reverse operation, with the product page specifically noting convenient forward/reverse conversion and stable speed.

The series also uses shaft sealing designed to support high back-pressure conditions. However, the allowable back pressure should be confirmed for the selected configuration rather than treated as a single value for the entire BM2 range.

For engineering selection, confirm:

• Required rotation direction
• Continuous and intermittent pressure
• Hydraulic flow
• Required operating speed
• Required torque
• Allowable back pressure
• Working temperature
• Hydraulic oil specification
• Oil viscosity and cleanliness
• Duty cycle

Specific working temperature, oil requirements, and back-pressure limits should be confirmed against the technical documentation for the selected motor configuration.

Applications

The BM2 series is particularly suited to rotary equipment where torque output and reliable hydraulic control are important.

Mobile and Agricultural Machinery

Typical applications include:

• Grass cutters
• Mowers
• Chippers
• Agricultural rotary equipment
• Conveyors
• Auxiliary drives

Winches and Material Handling

The available torque range makes the series suitable for selected:

• Winches
• Conveyors
• Winding equipment
• Sweeper drives
• Material handling systems

Augers and Cutting Equipment

The BM2 can be configured for hydraulic rotary drives used in:

• Augers
• Cutters
• Chippers
• Rotary processing equipment

Industrial and Mobile Equipment

The current product positioning also includes applications in agriculture, fishing machinery, plastic processing, mining, and construction machinery.

Application suitability should be evaluated according to the actual pressure, flow, speed, torque, mounting, and duty-cycle requirements.

BMR / OMR Hydraulic Motor Replacement

The BM2/BMR/OMR/JS family is also relevant to replacement projects where an existing orbital motor needs to be matched by both hydraulic performance and mechanical dimensions.

RECTE's current product information references replacement applications for various Danfoss OMR and Eaton JS models, including OMR50 through OMR375 and JS configurations in several displacement sizes. These should be treated as replacement references rather than automatic one-to-one compatibility claims.

For accurate replacement matching, provide:

• Existing motor model
• Original manufacturer
• Spostamento
• Continuous and intermittent pressure
• Hydraulic flow
• Required speed
• Required torque
• Shaft dimensions
• Flange dimensions
• Oil-port size and position
• Machine model
• Applicazione
• Motor nameplate or photos

A model-number match alone is not sufficient when replacing an installed hydraulic motor.

OEM Configuration

For OEM projects, the BM2 can be configured around the mechanical and hydraulic requirements of the target machine.

Available configuration discussions may include:

• Spostamento
• Flange
• Output shaft
• Oil ports
• Rotation requirements
• Product labeling
• Packaging
• Technical documentation

For an OEM project, installation drawings and hydraulic-system parameters are useful for confirming the appropriate configuration before production.