Applications
• Multi-axis and pivot vibration test system
• The vibration system connect to the table
• Angular vibration test system
• Custom designed test rigs

Specification
Model 3903-05X Hydrostatic Spherical Couplings
• Rated Load: +/-50kN
• Relative Angular Rotation: +/-6°
• Relative Cross Displacement: +/-23mm
• Frequency Range: 0~2000Hz
• Rated Working Pressure: 31.5MPa
• Max. Consumption: 2.0L/min
• Max. Overall Dimensions: Φ180mm×265mm（ref.Model 3903-051 and 052）
• Weight: 14.5kg（ref.Model 3903-051 and 052）
Connect Dimensions between vibration and sample
Model                   Connect hole       Layout for hole             Install bolt
Model 3903-051    8-Φ9 mm            Φ160 mm                    GB/T70.1 M8X40-8.8
Model 3903-052    8-Φ11 mm          Φ160 mm                    GB/T70.1 M10X40-8.8
Model 3903-053    8-Φ9 mm            Φ203.2 mm(Φ8 inch)   GB/T70.1 M8X40-8.8
Model 3903-054    8-Φ11 mm          Φ203.2 mm(Φ8 inch)   GB/T70.1 M10X40-8.8
Model 3903-055    8-Φ13 mm          Φ203.2 mm(Φ8 inch)   GB/T70.1 M12X40-8.8
Note：other connect dimension can be designed according to the customer require.
Model 3120-061 Removable Hydraulic power supply
• Output Pressure:21MPa~31.5MPa(continuously adjustable)
• Output Consumption: 6L/min
• Two step startup for low & high pressure, output test switch signal
• Reservoir: 63 L
• High Performance hydraulic Oil: ISO 46
• Return Filtration: 3μ
• Air Cooled
• Electric & Power: 380V/3 phase/50Hz、5kW
• Max. Overall Dimensions: 880mm×600mm×965mm（L×W×H）
• With 4 castors Mounted

Model 3903-10X Hydrostatic Spherical Coupling applied to transmit dynamic tensile
and compressive loads while allowing angular misalignment and transverse displacement
at the end of the coupling. It permit the load line at two sides of the coupling can be
produced relative motion under the force transmit.
Model 3903-10X Hydrostatic Spherical Coupling is a spherical joint design with double
pivot. It can be produced relative angular rotation and cross motion. It has capable of +/-6
degrees of misalignment and +/-26mm cross displacement is. There is a little friction torque
while relative motion, due to the spherical bearing surfaces are pressurized by hydraulic
fluid.

Model 3903-10X Hydrostatic Spherical Couplings
• Rated Load: +/-100kN
• Relative Angular Rotation: +/-6°
• Relative Cross Displacement: +/-26m
• Frequency Range: 0~2000Hz
• Rated Working Pressure: 31.5MPa
• Max. Consumption: 2.5L/min
• Max. Overall Dimensions: Φ230mm×310mm
• Weight: 21.5kg
Connect Dimensions between vibration and sample
Model                     Connect hole      Layout for hole                Install bolt
Model 3903-101     8-Φ11 mm         Φ200 mm                        GB/T70.1 M10X50-8.8
Model 3903-102     8-Φ13 mm         Φ200 mm                        GB/T70.1 M12X50-8.8
Model 3903-103     8-Φ11 mm         Φ203.2 mm(Φ8 inch)     GB/T70.1 M10X50-8.8
Model 3903-104     8-Φ13.5 mm      Φ203.2 mm(Φ8 inch)     1/2-13 X2.00UNC
Note：other connect dimension can be designed according to the customer require.
Model 3120-061 Removable Hydraulic power supply
• Output Pressure:21MPa~31.5MPa(continuously adjustable)
• Output Consumption: 6L/min
• Two step startup for low & high pressure, output test switch signal
• Reservoir: 63 L
• High Performance hydraulic Oil: ISO 46
• Return Filtration: 3μ
• Air Cooled
• Electric & Power: 380V/3 phase/50Hz、5kW
• Max. Overall Dimensions: 880mm×600mm×965mm（L×W×H）
• With 4 castors Mounted