RM series » Radial piston motors Type RM80N - RM5000X 3 displacement 80 - 5278 cm /rev operating pressure 250 bar speed up to 800 rpm torque 288 - 19320 Nm The radial piston hydraulic motor has been designed with a high load capacity. It is efficient, has a low moment of inertia and is capable of very low speeds and has excellent reversing properties. The concept features make it extremely quiet, being suitable for servo control systems with facility to work either as a motor or pump in both directions. Drive Motor: consists of a close grain, high strength, cast iron cylinder block. Eccentric crankshaft concept. Operating characteristics: five radial piston/connecting rod assemblies bear on the crankshaft which is located by heavy duty tapered roller bearings. Crankshaft bearings: preloaded to take the thrust in both axial directions, ensuring silent running and allows heavy radial and axial loading on the output shaft (e.g. gear drives). Connecting rod: the computer optimated design is hydrostatically balanced on the crankshaft with sufficient leakage to ensure lubrication and cooling. Friction losses are reduced to a minimum and stick slip action is avoided at low speeds. High starting torque and running torque combined with high speeds are important features of the design. Long service life is assured since con-rod slippers are uneffected by contamination and self-adjustable. Non-flammable fluids have been used with success. Noise generation is also reduced by the cushioning effect of the hydrostatic bearing design. Radial piston motor Displacement Speed range Torque Power continuous Power intermittent Vg max (cc/rev) Vg min(cc/rev) Vg max rpm) Vg min rpm) ( Vg max (Nm/bar) Vg min (Nm/bar) Vg max(kW) Vg min(kW) Vg max(kW) Vg min(kW) RM 750 - 250X 748 249 5 - 450 10 - 600 11.1 3.6 70 22 90 28 RM 1000 - 355X 1047 349 5 - 500 10 - 600 15.3 5.1 80 27 100 30 RM 1400 - 140X 1433 143 5 - 350 10 - 500 21.0 2.0 80 10 100 15 RM 1800 - 600X 1800 598 5 - 300 10 - 450 26.3 8.7 100 33 130 43 RM 3000 - 1000X 2928 999 5 - 220 10 - 350 42.8 14.6 115 39 150 51 RM 4500 - 2250X 4442 2221 5 - 140 10 - 280 65.1 32.5 120 60 160 80 Radial piston motor Displacement (cm U) Torque (Nm) Speed (1/min) Pressure (bar) Power (kW) RM80N 80 288 800 250 12 RM125N 126 450 600 200 12 RM160N 161 589 800 250 24 RM250N 251 920 600 200 24 RM250X 255 934 600 250 28 RM355X 359 1315 550 250 36 RM450X 442 1617 500 250 40 RM500X 491 1797 450 250 40 RM710X 704 2579 500 250 63 RM900X 904 3310 450 250 63 RM1000X 1047 3825 650 250 125 RM1250X 1266 4633 540 250 125 RM1400X 1407 5150 500 250 130 RM1600X 1608 5875 430 250 130 RM1800X 1810 6625 390 250 130 RM2000X 2011 7360 350 250 130 RM2500X 2533 9275 310 250 145 RM3150X 3167 11592 250 250 145 RM4000X 4013 14700 200 250 150 RM4500X 4508 16500 175 250 150 RM5000X 5278 19320 150 250 150 Variable motors » The comprehensive RM range feature: » Choice of shafts » Double shaft extension » Motor and brake combinations » Geared motors; gear motor and brake combinations » Tachometer and other measuring attachments » Couplings, flanges » Viton seals » Special models for HFB and HFC non-flammable fluids » Direct valve assembly possible » Connection SAE J 518 high pressure (type: A1) ( Hydraulic Motors Equipment for Hazardous Areas 31 #DriveLineHarmony www.jbj.co.uk/hydraulic-motors.html
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