General Information
Hydraulic motors convert hydraulic energy into mechanical energy. Orbital motors, specifically, use a fixed displacement mechanism involving an external stator with internal toothing and a rotor with planetary motion. There are two types of gear sets: Gerotor and Geroller, each with different configurations and applications.
Types of Orbital Motors- BGM: Compact Gerotor motors suitable for high-speed applications.
- BG, BH: Economical Gerotor motors for light to medium duties.
- BR, BS: Roller motors with high efficiency and good starting torque.
- ARS: Roller motors with high radial and axial load capacity.
- HR: High power roller motors with a capacity of up to 44.2 kW.
- HT: High-performance motors suitable for high torque applications, withstanding pressures up to 280 bar.
Performance and Maintenance
The motors' performance in terms of power, speed, and torque is depicted in histograms. Maintenance guidelines include operating within specified parameters, ensuring proper oil temperature and viscosity, and regular checks for leaks and oil levels. Proper filtration is crucial to maintain oil contamination levels within ISO 4406:1999 standards.
Installation and Safety
Motors should be filled with oil before operation, and the system should be purged of air to prevent foaming. The ambient temperature should be between -30°C and +90°C. Use of fire-resistant fluids is possible with technical consultation. Static and dynamic seals are standard in NBR, suitable for mineral oils.
Seals and Temperature Limits
Dana Brevini motors use static and dynamic seals made of NBR, suitable for mineral oils. Seals should not be exposed to temperatures outside -30°C to +90°C.
Drain Line Recommendations
A separate drain line is necessary when back pressure exceeds acceptable levels. It is recommended for brake motors and short motors to ensure cooling and reduce shaft seal pressure.
Circuit Configurations
Dana Brevini motors can operate in open or closed circuits and can be connected in series or parallel. Series connections ensure uniform speed but may suffer from leakage issues, while parallel connections provide equal torque distribution.
Braking Systems
For braking, motors act as pumps converting mechanical energy into hydraulic energy. The braking torque is influenced by motor displacement and valve pressure settings. Proper valve selection is crucial to avoid cavitation and ensure effective braking.
Product Identification
Each product has an identification plate with a serial number for tracking and information requests.
Conversion Factors
The document provides conversion factors between metric and English units for various hydraulic measurements.
Product Description and Identification
The document provides a detailed description of orbital motors, including a perpetual calendar for manufacturing dates and batch numbers. It outlines the product description as a 'New Solution' and includes a coding system for identifying motor configurations.
Motor Features
The motors have side and rear port configurations, optimized spool valve design to minimize leakage, built-in check valves, and a dust seal to protect the shaft seal. They offer a high torque/weight ratio, good low-speed performance, and options for different mounting flanges.
Technical Specifications
The document lists specifications for various motor models (BGM 013, 020, 032, 040, 050), including displacement, max input pressure, max differential pressure, max torque, max flow, max speed, and max power. It also specifies intermittent and peak conditions for pressure and torque.
Pressure and Torque Limits
Details on max permissible shaft seal pressure, max return pressure with and without drain lines, and min starting torque are provided. The document advises contacting Dana Brevini for conditions not covered in the charts.
Ordering Code
An alphanumeric system is used to specify motor configurations, including series, displacement, version, shaft end, main port, valve, valve feature, option, version feature, and painting.
Dimensions and Weights
Dimensions and weights for different motor versions (FR0/FRQ and SP1) are provided, along with main port thread depths.
Flange and Shaft Dimensions
Details on flange and shaft dimensions, including splined and cylindrical shaft options, are included.
Performance Curves
Performance curves for BGM/FRQ motors with a fixed flow restrictor are provided, showing torque/speed relationships.
Sensor Features
The TAC-E sensor kit includes an inductive sensor with specific technical features such as number of pulses per revolution, voltage, max load, frequency, temperature range, and enclosure rating.
Shaft Load Capacity and Tightening Torque
Information on permissible shaft loads and recommended tightening torques for various fittings is included.
Specifications Overview
The document provides detailed specifications for the BH series hydraulic motors, including models BH 050, BH 080, BH 100, BH 130, BH 160, BH 200, BH 250, BH 315, and BH 400. Each model is characterized by its displacement, maximum speed, and power output. The motors are designed for continuous, intermittent, and peak operations with specific limits on duration.
Performance Parameters- Max Speed: Ranges from 165 to 225 rpm depending on the model.
- Max Power: Varies from 47.8 kW to 382.5 kW across different models.
- Torque: Continuous torque ranges from 140 Nm to 360 Nm.
Operational Guidelines- Intermittent duty should not exceed 10% of each minute.
- Peak duty should not exceed 1% of each minute.
Pressure and Drainage- Case pressure without a drain line is the average of inlet and return pressure.
- Max permissible return pressure with a drain line is 138 bar.
Ordering Information- Motors are available in various configurations identified by a model code.
- Options include different shaft types, mounting flanges, and seal versions.
Dimensions and Weight- Dimensions and weights are provided for each model, with specific measurements for length and weight.
Load Capacity- Radial load capacity is dependent on speed and distance from the mounting flange.
- Specific formulas are provided for calculating permissible loads.
Important Notes- Exceeding continuous pressure or flow values should not occur simultaneously.
Specifications
The document outlines the specifications for orbital motors, highlighting features such as pressure compensated valve plates for minimal leakage, 7-socket roller sets, and options for heavy shaft loads. It includes built-in check valves for high discharge pressures without a connected drain line.
Ordering Code
The ordering code section provides details on displacement options ranging from 50 to 400 cm3/rev, mounting options with different bolt configurations, and additional options like high-pressure seals, brake motors, and electronic tachometers.
Technical Specifications
Tests were conducted using oil with a viscosity of 37 cSt at 45°C. The document provides detailed specifications for various motor displacements, including maximum input pressure, differential pressure, torque, flow, speed, and power. It also specifies conditions for continuous, intermittent, and peak operations.
Pressure and Torque
Maximum return pressure without a drain line is specified for different motor series (ARS, ARSW, ARF), with conversions provided for bar to psi. Minimum starting torque is detailed for continuous and intermittent conditions.
Dimensions and Weight
Dimensions and weights are provided for different motor series (ARS, ARSW, ARF) with specific measurements for various components. The document also includes thread depth specifications for main ports and drain motors.
Brake Features
The ARF and FP motors include a multi-plate disc brake that is hydraulically released. This brake is suitable for static braking actions like parking or safety brakes. Dynamic braking should be achieved through the hydraulic circuit, and high rotation speeds or prolonged vertical operations may require consultation with Dana Brevini's technical department.
Brake Features and Specifications
The document outlines the specifications for ARF and FP brakes used in hydraulic motors. Key parameters include minimum release pressure, complete brake release pressure, maximum pressure, and maximum static torque. The ARF brake requires 80 cm3 of hydraulic oil, while the FP brake has a maximum motor speed of 350 rpm.
Installation Guidelines
For FP motors, the drain port must be connected to the tank to prevent overheating. ARF motors should use heat-resistant hydraulic oils with specific viscosity grades. In open circuit systems, a flow control valve is recommended to prevent dynamic braking.
Application Layouts
The document describes typical configurations for open and closed loop systems, including single and dual brake-motor setups. These configurations are used in various machinery like cranes and sweepers, emphasizing automatic brake operation and the use of overcentre valves for controlled stopping.
Dimensions and Assembly
Details on dimensions and assembly are provided, including warnings about the tacho shaft speed and load capacities. The document specifies that electronic sensors are not supplied with the motors and must be ordered separately.
Technical Specifications
The document provides detailed technical data for various BR motor models, including displacement, maximum input pressure, maximum torque, and speed. It highlights the importance of not exceeding continuous pressure and flow values simultaneously.
Shaft Load Capacity
Load diagrams are included to illustrate the maximum static and radial loads the bearings can handle, depending on axial load conditions.
Technical Specifications
This document provides detailed technical specifications for BS motors with various shaft configurations, including cylindrical and splined shafts. It outlines the permissible radial shaft load, which depends on speed, distance from the load point to the mounting flange, and the version of the flange and shaft. The formula for calculating radial load is valid for speeds greater than or equal to 200 rpm, with a maximum permissible load of 8000 N for speeds below 200 rpm.
Motor Technical Data
The document includes comprehensive data for different motor models (BS 050, BS 080, BS 100, etc.), specifying displacement, maximum input pressure, maximum differential pressure, maximum torque, maximum flow, maximum speed, and maximum power. It also highlights the conditions for intermittent and peak duty, which should not exceed 10% and 1% of each minute, respectively.
Case Pressure and Drainage
The case pressure without a drain line is the average between inlet and return pressure. The motors are supplied with a standard drain port, and the maximum permissible return pressure with a drain line is 175 bar. The document advises contacting Brevini Fluid Power for conditions not covered by the provided charts.
Ordering Code
An alphanumeric system is used to identify all configuration options for BS motors. The document provides a detailed guide on how to specify desired features using the model code, emphasizing the importance of including all code digits when ordering.
Dimensions and Weight
Dimensions and weights for various motor models are provided, including measurements for different flange types and shaft configurations. The document specifies the maximum thread depth for motor drain ports, which varies depending on the version.
Shaft Load Capacity
The document includes formulas for calculating radial load capacity based on speed and distance from the flange, applicable to different flange types. It reiterates the conditions under which the formulas are valid and the maximum permissible load for speeds below 200 rpm.
Operational Limitations
It is noted that exceeding continuous pressure or flow values should not occur simultaneously. This section emphasizes the importance of adhering to specified operational limits to ensure motor performance and longevity.
Specifications
- Diametral pitch: 12/24
- Number of teeth: 12
- Pitch diameter: 25.4 mm
- Pressure angle: 30°
- Module: 2.1166
- Minor diameter: 23.0 mm
- Major diameter: 28.0 mm
- Max measurement between pins: 17.62 mm
- Pins diameter: 4.835 mm
- Finished dimensions after hardening: +0.033 to -0.1 mm
Spline Specifications
- ANS B 92.1 + 1970 Class 5
- Corrected m·x=0.8
Interface Drawings
- HR Motor “C” and “M” versions
Shaft Dimensions
- Cylindrical and splined shafts with various max admissible torques ranging from 300 Nm to 860 Nm
Main Ports Dimensions and Direction of Rotation
- Various thread depths and types for different versions (S, C, W, L, F, M)
Special Versions
- Special cover required for flushing valve on motors with “M09 - S09” ports
- Secondary drain port options for S-W versions
Brake Features
- F and L versions with multidisc pressure released brakes
- Static braking torque specifications
System Configurations
- Closed loop and open loop systems for various applications (sweepers, mobile machines, slew drives)
- Automatic brake operation and variable pump configurations
Shaft Load Capacity
- Bearing life L10h of 1600 hours at 200 rpm
- Maximum radial load capacity under static load conditions
Performance Data
- Exceeding continuous pressure or flow values should not occur simultaneously
Specifications and Recommendations
The document provides performance data for standard motors, emphasizing the use of the LW (Low Leakage) version for enhanced performance when the motor operates with a flow rate below 10 l/min (2.64 U.S. gpm). It is crucial not to exceed continuous pressure and flow values simultaneously.
Motor Features
The motors are designed with a heavy-duty roller type stator for high pressure and longevity. They include separate disc valves for precise phase control and built-in check valves for fluid recirculation. The shaft is supported by robust tapered roller bearings for high radial load capacity.
Technical Specifications
The document lists various models (HT 160, HT 200, HT 250, HT 315, HT 400, HT 500) with specifications such as displacement, maximum input pressure, differential pressure, torque, flow, speed, and power. It also details intermittent and peak duty conditions, oil viscosity, and minimum starting torque.
Pressure and Seal Information
Maximum permissible shaft seal pressure is outlined, with options for standard and high-pressure seals. Pressure loss data is provided based on tests with specific oil viscosity.
Ordering Codes
A detailed alphanumeric system is provided to specify motor configurations, including series, displacement, version, flange, shaft end, main port, seals, valves, and additional options. The document advises consulting the catalogue before ordering.
Additional Features
Options for flushing valves and pressure relief valves are available, with specific configurations and pilot ratios. The document also mentions painting and other optional features.
OverviewThe document provides detailed technical specifications and operational guidelines for BRZ orbital motors, including their features, versions, optional accessories, and technical specifications. It emphasizes the importance of not exceeding continuous pressure and flow values simultaneously and provides data from tests conducted with specific oil viscosity.
Motor FeaturesBRZ motors are hydraulic motors with a roller design and radial distribution. They are available in displacements ranging from 50 to 400 cm³/rev and power up to 13 kW. Two main versions are available: BRZL with threaded ports and BRZV for optional valve use. Optional valves include standard and disengagement brake port motion control valves, and a flangeable manifold.
Technical SpecificationsThe document lists maximum input pressure, differential pressure, torque, flow, speed, and power for various motor displacements. It specifies that intermittent duty should not exceed 10% per minute, and peak duty should not exceed 1% per minute. The document also provides maximum back pressure and starting pressure in unloaded conditions for each motor type.
Dimensions and WeightDetailed dimensions and weights are provided for both BRZL and BRZV motor versions, as well as for optional components like the VCT 11 valves and CMZ manifolds. The document specifies thread depths for main ports and drain ports.
Valves and AccessoriesA range of valves and accessories are listed, with specifications for maximum working pressure and flow. The document notes that the valves are available in metric versions, with SAE versions available upon request.
Important NotesThe document highlights the need to connect the drain line if the pressure on the seal exceeds rated figures. It also provides technical features for an electronic sensor, including its inductive principle, output current, voltage range, and temperature range.
OverviewThe document provides technical specifications and applications for various hydraulic control valves used in slew drive control of cranes, aerial platforms, and other machinery. These valves are crucial for controlling load lowering and preventing unwanted acceleration in hydraulic systems.
SpecificationsThe document details several models of double-acting overcentre valves with shuttle valves, including VCR1 08, VCR1 E8, VCR1 09, VAF 10, VCD2 10, and VCR1 10. Each model has specific pilot ratios, maximum working pressures, maximum flow rates, and weights. The valves are typically supplied not set, with a setting range between 30 and 220 bar (435 to 3190 psi), except for some models with different ranges.
ApplicationsThese valves are commonly used in
winch driving brake motors with pressure-released brakes. They are essential for controlling the descent of loads and preventing uncontrolled acceleration in applications such as crane turrets and aerial platforms. The valves are also used in hoisting equipment, where the main relief valve or any anti-shock valve must be set at higher pressure values than the relief valve.
Installation and AdjustmentThe valves are flangeable on specific motor series such as AR, BR, BG, HR, HT, and HTC. For adjustment, the cap must be removed to access the settings. The document emphasizes the importance of setting the main relief valve or anti-shock valves at appropriate pressure levels to ensure safe operation.
Additional FeaturesSome valves, like the VAF 10, offer pressure relief to protect motors from excessive pressure peaks during start, stop, and inversion phases. The VSC series includes flushing valves for oil cooling in high-speed and high-power operations, requiring a dedicated cover for mounting.
Ordering InformationThe document specifies that valves are generally supplied not set, and any specific setting requirements must be stated at the time of ordering. A minimum order quantity of 20 pieces is required for some models.
Specifications
- Maximum working pressure: 315 bar (4567 psi)
- Maximum flow: 40 l/min (10.5 U.S. gpm)
- Weight: 2.1 kg (4.62 lb)
- Code: P15111618
Recommendations for Pilot RatiosHigh pilot ratios are recommended for minimizing energy loss during load lowering. Low pilot ratios provide better control for variable loads but result in higher energy loss. For motors with brakes, low pilot ratios are preferred to ensure complete brake disengagement during load lowering. The pilot pressure must always be higher than the brake's full disengagement pressure to avoid interference.
WarningOvercentre and slewing control valves (VCR1-VCD) should be set at least 30% higher than the nominal pressure induced by the load and used with open centre directional valves.
Manifold and Bushings
- Manifold (Base Block) BFL 1 is compatible with AR, BR, BG motors.
- Various types of bushings are listed with their dimensions and codes, suitable for different configurations.
Contact Information Dana Brevini S.p.A.
Via Luciano Brevini 1/a, 42124 Reggio Emilia
Tel. +39 0522 270711
Fax +39 0522 270660
Website: www.dana.com/brevini
Email:
[email protected]