product
Gear motors from RYAN Hydraulics have a floating bushing feature with automatic axial clearance compensation. The bushings are made with special abrasion resistant material providing improved service life. Precisely machined gears ensure the excellent characteristics under low noise condition. Our cold extrusion motor bodies can endure pressure above 30 MPa. High strength cast iron front & rear covers also enhance our reliability. Our gear motors are widely used in the industrial, mobile, marine and aerospace industries.
Ryan has 5 series of gear motors: group 1, 2, 2.5, 3 and 3.5. They can be divided into two types. One is the single direction gear motor, the other is the bi-direction gear motors. Normally the design of the single direction gear motor is similar to that of the single direction gear pump with some slight design differences. Therefore, every Ryan gear motor has the corresponding single direction gear motors. When placing your order, please refer to the ordering code.
We now focus on the bi-direction gear motors. This motor has a different sealing structure to the single direction motor. The symmetrical sealing (refer to the following drawing) separating high pressure from low pressure thus allowing bi-direction operation. The oil from internal leakage returns to tank through the drain port. Normal case drain pressure is limited to 2 bar, but 5 bar is allowed for intermittent operation. High quality of the bushings, bearings and seals adds to the outstanding performance of Ryan bi-direction gear motors.
Direction of rotation: bi-direction and single-direction
Permissible ambient temperature range: min. -20°C - max. 60°C
Operating pressures: input side P1 max = refer above data; outlet side P2 max. 3 bar
Drain pressure: max. 2 bar, Short time: max. 5bar
Fluid temperature range: max. 90°C for NBR rotary shaft lip-type seal, 100°C for FKM rotary shaft lip-type seal
Viscosity range: min. 10mm2/s - max. 600mm2/s
| Displacement (ml/r) | 1.1 | 1.6 | 2.1 | 2.7 | 3.2 | 3.7 | 4.2 | 4.8 | 5.8 | 6.5 | 8.0 |
| L1 | 33 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 43 | 44 | 47 |
| L | 75 | 78 | 79 | 81 | 83 | 85 | 87 | 89 | 93 | 95 | 101 |
RYAN 1MF series gear motors are widely used in paver, excavator and road roller.
