OS Trac

Hydraulic Pump

• $250, Northern Tool
• 3600 psi
• 26 gpm@1800 rpm
• 52 gpm@3600 rpm max

32 cubic inch hydraulic motor, Surpluscenter, $250

• Disp. 31.88 cu. in. / rev.
• Motor Type Disc Valve Geroler
• Pressure:

       3050 PSI cont.
       3625 PSI int.

• Torque:

       5130 in-lbs. cont.
       6105 in-lbs. int.

• Speed:

       145 RPM cont.
       175 RPM int.

• Flow:

       20 GPM cont.
       24 GPM int.

• Rotation Reversible
• Mount 4 bolt Magneto
• Shaft 1-1/4" dia x 1.9" keyed
• Rqd. Filtration 25 Micron
• Ports SAE 10
• Case Drain SAE 4
• Size 8-3/4" X 5-1/4" X 4"
• Shpg. 34 lbs.

24 Cubic inch motor

[Specs for: 23.6 cu in DYNAMIC BMPH400H2KP HYD MOTOR]

DYNAMIC BMPH SERIES MOTOR Brand new DYNAMIC BMPH series hydraulic motors. Gerotor power element. Interchangeable with the following motor lines: CHAR-LYNN H, DANFOSS DH, WHITE RS, PARKER - ROSS MG/TB.

• Dynamic Model #: BMPH400H2KP
• Disp. 23.6 cu. in. / rev.
• Pressure 1450 PSI cont.
• Pressure 1540 PSI int.
• Torque 3850 in-lb. cont.
• Torque 4717 in-lb. int.
• Speed 150 RPM cont.
• Flow 15.8 GPM cont.
• Power 8.2 HP cont.
• Rotation reversible
• Mount 2 bolt SAE A
• Shaft 1" dia. woodruff keyed
• Ports 1/2" NPT
• Case drain SAE 4
• Overall size 7-3/8" x 5-3/16" x 3-1/4"
• Shpg. 20 lbs.

Tractor Speed

• 150 rpm * 5 feet = 750 fpm = 4 mi/hr
• 1 fpm = .33/60 meters/sec
• 1 (m / s) = 2.23693629 mi / hr
• 24 cu in motor: 52/64*4 mi/hr = 3.4 mi/hr
• 32 cu in motor: 52/80*4 mi/hr = 2.6 mi/hr
• Compare to average walking speed: 3 mi/hr