Axial Piston Fixed Displacment Motor AA2FM (A2FM) - Group VH A/S

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8/36 Bosch Rexroth Corp. AA2FM RA 91 001/07.05Technical DataDetermining the sizeV g • nV g • nFlow q v = gpm q v = L/min231 • η v 1000 • η vq v • 231 • η vq v • 1000 • η vSpeed n = rpm n = rpmV gV g • Δp • η mhV g • Δp • η mhTorque T = lb-ft T = Nm24 • π 20 • π2 π • T • n q v • Δp • η t 2 π • T • n q v • Δp • η tPower P = = HP P = = kW33 000 1714 60 000 600V g = Diplacement per revolution in in 3 (cm 3 )Δp = Differential pressure in psi (bar)n = Speed in rpmη v = Volumetric efficiencyη mh = Mechanical-hydraulic efficiencyη t = Overall efficiency((((V g))))Minimum inlet pressure on service line port A (B)In order to avoid damage of the motor a minimum inlet pressureat the inlet zone must be assured. The minimum inlet pressureis related to the rotational speed of the fixed motor.inlet pressure pabs. min in barbar12108642100.20.40.6psi160140120100806040200.8 1.0speed n/n maxPlease contact us if these conditions cannot be satisfied
RA 91 001/07.05 AA2FM Bosch Rexroth Corp. 9/36Technical DataPermissible radial and axial loading on the drive shaftThe values given are maximum values and do not apply to continous operation.Size 5 10 12 16 23 28 32 45 56 63 80Radial force, max. 1 )at distance a(from shaft collar)Axial force, max. 3 )–Fax+FqPermissible axial force/psi (bar)operating pressureaF q max lbf 160 472 562 730 865 1079 1214 1630 1832 2057 2304 2 )N 710 2100 2500 3250 3850 4800 5400 7250 8150 9150 10250a in 0.47 0.63 0.63 0.63 0.63 0.63 0.63 0.71 0.71 0.71 0.79mm 12 16 16 16 16 16 16 18 18 18 20+F ax max lbf 40 72 72 72 112 112 112 142 180 180 225N 180 320 320 320 500 500 500 630 800 800 1000–F ax max lbf 40 72 72 72 112 112 112 142 180 180 225±F ax per. /psi(bar)N 180 320 320 320 500 500 500 630 800 800 1000lbf/psi 0.023 0.05 0.05 0.05 0.08 0.08 0.08 0.11 0.13 0.13 0.16N/bar 1.5 3.0 3.0 3.0 5.2 5.2 5.2 7.0 8.7 8.7 10.6Size 90 107 125 160 180 200 250 355 500 710 1000Radial force, max. 1 )F q max lbf 2574 2 ) 2720 3170 3664 4114 5148 270 337 427 674 584at distance aN 11450 12100 14100 16300 18300 22900 1200 4 ) 1500 4 ) 1900 4 ) 3000 4 ) 2600 4 )(from shaft collar) Fqa in 0.79 0.79 0.79 0.98 0.98 0.98 1.61 2.07 2.07 2.66 2.66amm 20 20 20 25 25 25 41 52.5 52.5 67.5 67.5Axial force, max. 3 ) +F ax max lbf 225 281 281 360 360 360 450 562 674 989 989–Fax+Permissible axial force/psi (bar)operating pressureN 1000 1250 1250 1600 1600 1600 2000 2500 3000 4400 4400–F ax max lbf 225 281 281 360 360 360 450 562 674 989 989±F ax per. /psi(bar)N 1000 1250 1250 1600 1600 1600 2000 2500 3000 4400 4400lbf/psi 0.16 0.20 0.20 0.26 0.26 0.26 5 ) 5 ) 5 ) 5 ) 5 )N/bar 10.6 12.9 12.9 16.7 16.7 16.71 ) during intermittent operation (sizes 5...200)2 ) value for Q-shaft: F q max = 2023 lbf (9000 N)3 ) max. permissible axial force when stopped or when axial piston unit working in pressureless conditions.4 ) when stopped or when axial piston unit working in pressureless conditions. Higher forces are permitted when under pressure,please contact us.5 ) please contact usWhen considering the permissible axial force, the force-transfer direction must be taken into account.– F ax max = increase in sevice life of bearings+ F ax max = reduction in service life of bearings (avoid if at all possible)Gear driveEffect of radial force F q on the service life of the bearingsBy selecting a suitable force-transfer direction of F q , the stressDirection Motor of rotation beiwechselnderon the bearing caused by the internal transmission forces canalternating Drehrichtungbe reduced, thus achieving the optimum service life for thebearing. Recommended position of mating gear depending ondirection of rotation. Examples:ϕ optϕ optϕ optV-belt driveϕ optGear driveV-belt driveSize ϕ opt. ϕ opt.10-180 ± 70° ± 45°200-1000 ± 45° ± 70°A B A BMotor LinkslaufDruck amAnschluß BCounter-clockwisedirection of rotationMotor RechtslaufDruck amAnschluß AClockwisedirection of rotationPressure on port B Pressure on port AMotor LinkslaufCounter-clockwiseDruck amdirectionAnschlußof rotationBPressure on port B
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Axial Piston Fixed Displacment Motor AA2FM (A2FM) - Group VH A/S

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