Description Size 145 Nominal pressure 320 bar Maximum pressure 420 bar Open circuit Features Nominal pressure range up to 350 bar for reduced operation data possible. High permissible drive speed Favorable power-to-weight ratio – compact dimensions Low noise Excellent suction characteristics Controls with short response times Swashplate design Type code 1) Connectors for other electric components may differ 2) Also applies to versions without through drive 1) For information on combination pumps refer to the "Overview of mounting options" 2) Cannot be combined with the version "Double shaft seal" position 13. 3) Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5 Notice Observe the information in the project planning notes chapter Observe the project planning notes regarding each control device In addition to the type code, please specify the relevant technical data when placing your order Technical data Table of values Size 145 Displacement geometric, per revolution Vg cm³ 145 Nominal pressure pnom bar 320 Maximum pressure pmax bar 420 Maximum speed 1) nnom rpm 2300 Flow at nnom qV l/min 333 Power at nnom and pnom P kW 178 Torque at pnom M Nm 738 Rotary stiffness R1, 1 3/4 in 13T 8/16DP c kNm/rad 151.084 W9, 1 1/2 in 17T 12/24DP c kNm/rad 137.475 W8, 1 3/8 in 21T 16/32DP c kNm/rad 141.257 Moment of inertia for rotary group JTW kg·m² 0.016 Maximum angular acceleration 2) ɑ rad/s² 2700 Case volume V l 1.3 Weight with mounting flange C2/D4, without through drive m kg 57 Weight with mounting flange C2/D4, with through drive m kg 62 Weight with mounting flange G3, without through drive m kg 72 Weight with mounting flange G3, with through drive m kg 77 1) The values are applicable: – at an abs. pressure pabs = 1 bar at the suction port S – for the optimum viscosity range of vopt = 36 to 16 mm2/s ‒ with hydraulic fluid on the basis of mineral oil; higher rotational speeds available on request 2) The data are valid for values between the minimum required and maximum permissible rotational speed. It applies for external stimuli (e.g. diesel engine 2 to 8 times rotary frequency, cardan shaft twice the rotary frequency). The limit value is only valid for a single pump. The load capacity of the connection parts must be considered. Determining the operating characteristics Flow [l/min] Torque [Nm] Power [kW] Key Vg Displacement per revolution [cm3] Δp Differential pressure [bar] n Rotational speed [rpm] ηv Volumetric efficiency ηhm Hydraulic-mechanical efficiency ηt Total efficiency (ηt = ηv • ηhm) Notice The table values are theoretical values without consideration of efficiencies and tolerances. The values are rounded. Operation above the maximum values or below the minimum values may result in a loss of function, a reduced service life or in the destruction of the axial piston unit. Bosch Rexroth recommends testing the loads by means of experiment or calculation / simulation and comparison with the permissi
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