Hydraulic Motor Library

• Pick from Power_Cube_v17.08 library,
• File:Hydraulic Pump.fcstd
• File:PTO Hydraulic Motor.fcstd - see files that link to this page
• 45.6 Cu In Hydraulic Motor used in LifeTrac 4-9, see Tractor Genealogy

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  Hydraulic motor, BMER-2-250. - FreeCAD -File:Bmer2.FCStd. Dybamic BMER series wheel drive motors. Up to 9000 in lb in larger versions. See Surpluscenter for one example. [1]. Form factor is similar to the Char-Lynn/Eaton/Danfoss 105-1006-006.

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  GC Wheel Motor from 5.4 cu Hydraulic Motor Stock Part File:GC Wheel Motor.fcstd

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  TechnicalDrawing.jpg

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  White Hydraulics 5.4 cu in motor. 12 hp output. FreeCAD - File:Whitemotor54.FCStd.

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  45.6 cubic inch motor, 33 hp. used in LifeTrac prorotypes 5-9, see LifeTrac Genealogy. See 45.6 Cu In Hydraulic Motor. File:45cuinmotor.fcstd

Hydraulic Motors Explored

• Key motor - 5 cu in [2]. Power - torque*RPM/63000.
• Industry standards - Case SR270 has 24000 in lb motors at 240 rpm 7 mph [3], or 91 hp (for 2 motors). Final drive motor is $4k [4]. Case 75XT (75 hp) is $3k [5]
• Char-Lynn 104-1014-006 is 26 hp [6] and about $500 [7]
• Char-Lynn/Eaton/Danfoss 105-1006-006 os 29 hp [8]. $120 but has case drain [9] or [10] or [11]. Lowest cost at $6/hp - making it a strong candidate for use if this is for real. No case drain is double that. Definitely worth considering case drained options especially when more than 4 motors are used. 19 gpm makes flow a little more difficult. HIgh pressure motor (3000 PSI+).
• Dynamic BMER-2 series wheel drive - up to 9000, but limit of 20 hp [12]. Given its higher price, the sweet spot appears to be the 5000 in lb range, at about 20 hp - at 1/2 or less the price. However, BMER has no case drain, so we may look for 5000 in lb versions.

Links

• Hydraulic Fitting Library
• Hydraulics Part Library
• Tractor Construction Set