BM1 Hydraulic Motor: 6.1 CID, 1” Straight Woodruff Key Shaft, 2-Bolt Flange, 435 PSI, Parallel 1/2 NPT Ports

The BM1 hydraulic motor features a compact spool and gerolor gearset design that delivers high power in a lightweight, space-efficient package. It provides smooth, precise control of shaft rotation and speed and is optimized for efficient performance in medium-load applications. This Hydro Custom BM1 Motor, rated at 12 GPM, 386 RPM, and 435 PSI has a 6.1 in³ displacement and 278.8 lbs-in torque.

• Compact, lightweight design with spool and gerolor gearset for high power density
• The optimal operating condition is 1/3 to 2/3 of the continuous use values.
• Smooth and precise speed control for reliable operation
• Standard shaft seals rated at 1,085 PSI standard, 2900 PSI HPSS
• Standard shaft seals and bearings are not recommended for applications that may experience side-loadings.
• Optimized efficiency for medium-load, continuous-duty applications
• Case drain capability to protect seals and extend motor life
• Internal check valves for smoother directional control
• Standard clockwise rotation (facing shaft) when port A is pressurized

Full BM1 Specifications

• Mounting Flange: Rhombus, SAE-A 2-Bolt
• Radial Shaft Load: 440 lbs. (200 kg); 881 lbs. (400 kg) with radial bearing
• Axial Shaft Load: 330 lbs. (150 kg); 440 lbs. (200 kg) with radial bearing
• Shaft Seal Rating: 1,085 PSI standard, 2900 PSI HPSS
• Rotation: Bi-rotational, clockwise preferred
• Temperature Rating: 100-120°F working, 176°F (80°C) max
• Port Configuration: Parallel
• Case Drain: SAE 4