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HA2FM series axial piston motors

HA2FM series axial piston motors
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HA2FM series axial piston motors

Product catalog summary
Introduction: The HA2FM series is a fixed displacement axial piston motor with a bent axis design, suitable for hydrostatic drives in both open and closed circuits. It is applicable in mobile and industrial settings, offering high power density, compact design, and excellent starting torque efficiency.
Features: The motor's output speed is determined by the pump's flow capacity and the motor's displacement. Torque increases with the pressure differential and displacement. The motor is designed for high efficiency and economical operation, featuring one-piece pistons with piston rings. It supports both open and closed circuits, with nominal and peak pressures of 400 bar and 450 bar, respectively.
Technical Specifications: The motor is compatible with mineral oil hydraulic fluids, with an optimal viscosity range of 16-36 mm²/s. Extreme viscosity limits are 5 mm²/s (short-term) and 1600 mm²/s (cold start). The maximum hydraulic fluid temperature should not exceed 115°C. Filtration requirements are specified as ISO 4406 cleanliness levels of 20/18/15 or 19/17/14 at higher temperatures.
Operational Parameters: The motor supports a nominal pressure of 400 bar and a peak pressure of 450 bar, with specific conditions for shaft ends. The direction of flow is determined by the rotation direction, and the speed range has no minimum limit, though uniform motion requires at least 50 rpm. The shaft seal ring's service life is influenced by motor speed and case drain pressure, with short-term pressure spikes up to 10 bar allowed.
Performance Data: The motor's displacement ranges from 22.9 to 160.4 cc/rev across different sizes, with maximum speeds varying from 3600 to 6900 rpm. Torque constants and maximum torque values are provided for differential pressures of 350 and 400 bar. The motor's mass and moment of inertia are also specified for each size.
Design Considerations: The motor's radial and axial force limits are detailed, with specific values for different sizes and shaft types. Minimum inlet pressure requirements are outlined to prevent motor damage, related to rotational speed.
Drive Shafts and Ports: Various shaft types are available, including splined and parallel keyed shafts, with dimensions and standards specified. Port configurations and maximum pressures are detailed, with instructions for installation and connection requirements.
Drive Shafts Specifications: The document outlines specifications for drive shafts of sizes 23, 28, 32, and 45. It includes details on splined shafts according to DIN 5480 and parallel keyed shafts according to DIN 6885. Key dimensions and tolerances are provided for each size.
Ports and Connections: The document specifies the designation and maximum pressure for various ports, including service lines and drain lines. It highlights the importance of connecting certain ports based on installation positions and provides threading details according to DIN standards.
Installation and Design Considerations: It advises requesting a binding installation drawing before finalizing designs. The document emphasizes observing general instructions for maximum tightening torques and considering momentary pressure spikes when selecting measuring devices and fittings.
Dimensional Details: Detailed dimensions are provided for different sizes, including the location of service line ports on port plates. The document specifies the use of SAE flange ports and threaded ports, with dimensions in millimeters.
Notes and Recommendations: The document includes notes on deviations from standard dimensions, the necessity of connecting certain ports, and the potential for deeper spot faces than specified in standards. It also references additional pages for further details on port plates.
Overview: This document provides technical specifications, installation guidelines, and operational instructions for Bosch Rexroth A2FM Series 6 hydraulic motors. It includes detailed information on port plates, drive shafts, and installation positions.
Specifications:
  • Port Plates: Various configurations are available, including SAE flange ports at different positions. Maximum pressure is 450 bar, and specific fastening threads are detailed for each size.
  • Drive Shafts: Options include splined shafts (DIN 5480) and parallel keyed shafts (DIN 6885). Dimensions and specifications are provided for sizes 160 and 180.
Installation and Commissioning:
  • General Instructions: Ensure the motor case is filled with hydraulic fluid during startup and operation. Start the motor at low speed and no load until the system is fully bled.
  • Installation Positions: The motor can be installed below or above the tank. Specific measures are required for each position to ensure proper lubrication and prevent air pockets.
  • Additional Measures: For installation position 2 (shaft facing up), ensure the motor case is full before startup and consider using a non-return valve to prevent system emptying.
Recommendations:
  • Request a binding installation drawing before finalizing the design.
  • Observe general instructions for maximum tightening torques and consider potential pressure spikes when selecting measuring devices and fittings.
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Catalog excerpts

HA2FM series axial piston motors-1

HA2FM series axial piston FIXED DISPLACEMENT MOTOR

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HA2FM series axial piston motors-2

HA2FM SERIES AXIAL PISTON FIXED DISPLACEMENT MOTOR PRODUCT SHOW AND BRIEF INTRODUCTION Open and closed circuits Series 6 HA2FM Sizes 10...180 Nominal pressure 400 bar Peak pressure 450 bar FEATURES Fixed displacement axial piston motor HA2FM, bent axis design, suitable for hydrostatic drives in open and closed circuits Careful selection of the displacements offered, permit sizes to be matched to practically every application High power density Use in mobile and industrial applications Compact design The output speed depends on the flow capacity of the pump and the displacement of the motor High...

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HA2FM series axial piston motors-3

Service line port 23 01 SAE flange ports A and B at rear SAE flange ports A and B at side, opposite Threaded ports A and B at side, opposite Threaded ports A and B at side and rear SAE flange ports A and B at bottom (same side) Port plate with pressure-relief valves Port plate with 1-level pressure-relief valves for mounting a counterbalance valve Port plates for service lines Valves Without valve Flushing and boost pressure valve, mounted Pressure-relief valve (without pressure boost facility) Counterbalance valve BD/BVE mounted Pressure-relief valve (with pressure boost facility) Flushing and...

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HA2FM series axial piston motors-4

TECHNICAL DATA Example: at an ambient temperature of X°C an operating temperature of 60°C is set in the circuit. In the optimum operating viscosity range (Vopt; shaded area) this corresponds to the viscosity classes VG 46 or VG 68; to be selected: VG 68. Please note: the leakage fluid temperature, which is affected by pressure and rotational speed, is alway higher than the circulation temperature or tank temperature. At no point in the system may the temperature be higher than 115°C. Speed range No limit to minimum speed nmin. If uniform motion is required, nmin must not be less than 50 rpm....

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HA2FM series axial piston motors-5

TECHNICAL DATA Table of values (theoretical values, ignoring nmin and nv; values rounded) Size Torque constants Filling capacity Mass moment of inertia around output shaft Mass (approx.) Torque constants Filling capacity Mass moment of inertia around output shaft Mass (approx.) 1) intermittent maximum speed: overspeed at discharge and over-running travel operations, t<5 sec. and AP<150 bar Determining the size Flow Vg = Displacement per revolutionin mL/r ΔP = Differential pressure in bar n = Speed in rpm ηv = Volumetric efficiency ηmh = Mechanical-hydraulic efficiency nt = Overall efficiency

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HA2FM series axial piston motors-6

TECHNICAL DATA Permissible radial and axial loading on the drive shaft The values given are maximum values and do not apply to continuous operation Size 1) During intermittent operation 2) Permissible max.radial force with shaft end Z:Fqmax = 6500N Radial force, max. at distance a (from shaft collar) (1) Permissible axial force/bar operating pressure Radial force, max. at distance a (from shaft collar) (1) Permissible axial force/bar operating pressure 3) Max. permissible axial force when stopped or when axial piston unit working in pressureless conditions When considering the permissible axial...

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HA2FM series axial piston motors-7

14/46 14/46 Bosch Rexroth AG Bosch Rexroth AG 14/46 14/46 Bosch Rexroth AG Bosch Rexroth AG Designation Port for Designation Port for Designation Port for Designation Port for Designation Port for Standard Standard Standard Standard Standard Sizes 28 NG 23, 23, 28 Sizes 23, 2828 Sizes 23, Sizes 23, 28 keyed shaft SizesParallel PP Parallel keyed shaft 23, 28 PPPParallel 6885, AS8x7x40 Parallel AS8 x 7 P Parallel keyed shaftx 40 DIN keyed shaft DIN 6885,keyed shaft Parallel keyed shaft DIN 6885, AS8x7x40 DIN 6885, AS8x7x40 DIN 6885, AS8x7x40 DIN 6885, AS8x7x40 19 Key 19 19 Key 6 19 19 Key Key 8...

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HA2FM series axial piston motors-8

Bosch Rexroth AG Bosch Rexroth AG Before finalizing your design, request a binding Before finalizing your design, request a binding installation drawing. Dimensions in mm. installation drawing. Dimensions in mm. Location of the service line ports on the port plates Location of the service line ports on the port plates Location of the service line ports on the port plates 01 SAE flange ports at at rear 01 – SAE flange ports at rear 01 – SAE flange ports rear 02 SAE flange ports at at side, opposite 02 – SAE flange ports side, opposite 02 – SAE flange ports at side, opposite Detail Y Detail Y 115...

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HA2FM series axial piston motors-9

Dimensions size 45 DIMENSIONS: SIZE 45 Dimensions size 45 Before finalizing your design, request a binding installation drawing. Dimensions in mm. Before finalizing your design, request a binding installation drawing. Dimensions in mm. Flange ISO 3019-2 Flange ISO SHAFTS 3019-2 DRIVE Drive shafts Z Splined shaft DIN 5480 P Parallel keyed shaft on request NG 45 SHAFT A: Drawing Drive shafts DIN 6885, AS8x7x50 W30x2x14x9g Z Splined shaft DIN 5480 Z Splined shaft DIN 5480 P Parallel keyed shaft W30 x 2 x 14 x 9g 28 Designation Port for (see port plates) A, B Service line Standard Standard Drain...

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HA2FM series axial piston motors-10

Bosch Rexroth AG Bosch Rexroth AG Bosch Rexroth AG Dimensions size 45 Dimensions size 45 Location of the service line ports on the port plates Location of the service line ports on the port plates Location of the service line ports on the port plates 04 – Threaded ports at side and rear 04 – Threaded ports side and rear 04 Threaded ports at at side and rear 04 – Threaded ports at side and rear Detail Y Detail Y Detail Y Plate Plate Plate Designation Port for Designation Port for Designation Port for 10 – SAE flange ports at bottom (same side) 10 – SAE flange ports bottom (same side) 10 SAE flange...

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HA2FM series axial piston motors-11

Before a binding Before finalizing your design, request finalizing your design, request a binding Before finalizing Before finalizing your design, request a binding your design, request a binding installation mm. installation drawing. Dimensions in mm. drawing. Dimensions inin mm. installation drawing. Dimensions installation drawing. Dimensions in mm. Bosch Rexroth AG osch Rexroth18/46 AG DRIVE SHAFTS Drive shafts Drive shafts NG 56, 63 NG 56, 63 NG 56 NG56, 63 NG56 NG56, 63 NG56, 63 NG56 NG56 NG56,NG56 63 NG56 NG56, 63 NG56 NG56 NG56 NG56, 63 AA Splined shaft DIN 5480 Splined shaft DIN 5480...

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