Vickers | MHT-150-N1-30-S18-S27-0-6818
MHT-150-N1-30-S18-S27 0 6818
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The MHT-150-N1-30-S18-S27 0 6818 hydraulic vane motor belongs to the Vane Motors series from Vickers. It converts pressurized fluid into rotation for automation tasks where controlled, high torque at low speed is needed. A theoretical displacement of 1852 cc per revolution provides large volume transfer, supporting machinery that demands significant shaft torque per cycle. The torque constant of 203 Nm at 6.9 bar helps designers estimate output torque as system pressure rises. Continuous duty is limited by a maximum rated pressure of 207 bar, while a stall limit of 276 bar safeguards internal components during locked-rotor events. To prevent bearing overheating, the unit must not exceed 250 rpm when operated at 2000 psi. Flow directed to port A spins the shaft clockwise, fixing the circuit’s directional logic. Internal leakage must drain to a case line that stays below 1.7 bar, keeping shaft seals within their pressure capability.
With a shaft removed for shipping, the motor weighs 142 kg, so mounting structures must handle substantial static load. The flange employs a 298.5 mm bolt circle that aligns the housing to the driven machine, and an O-ring seat measuring 234.95 mm inside diameter ensures oil containment at that interface. Power is transmitted through a 40-tooth spline; its 101.6 mm pitch diameter and 87.99 mm base diameter determine the contact area for torsional loads. A diametral pitch of 10/20 and a pressure angle of 30 degrees establish tooth size and form, letting the shaft mate with standard couplings without backlash. Together these mechanical and geometric limits integrate the motor into hydraulic drives requiring precise installation, secure sealing, and repeatable torque delivery.
Technical Specifications
Max Case Port Pressure
1.7 bar (25 psi)
Maximum Rated Pressure
207 bar (3000 psi)
Maximum Speed (2000 Psi)
250 rpm
Maximum Stall Pressure
276 bar (4000 psi)
Mounting Bolt Circle
298.5 mm (11.75 in)
Mounting Face O-ring Id
234.95 mm (9.25 in)
Rotation With Flow To Port A
Clockwise
Spline Base Diameter
87.99 mm (3.4641 in)
Spline Diametral Pitch
10/20
Spline Pitch Diameter
101.6 mm (4.0000 in)
Spline Pressure Angle
30 deg
Spline Tooth Count
40 teeth
Theoretical Displacement
1852 cc/rev (113 in3/rev)
Theoretical Torque Constant
203 Nm/6.9 bar (150 lb ft/100 psi)
Weight (shaftless)
142 kg (312 lb)
1620 Old Apex Road
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