English 
HENGSHUI RUILAIBAO offers high performance water lubricated bearings engineered for marine, pump and industrial applications. Utilizing specially formulated nitrile rubber with excellent abrasion resistance and low friction coefficient, our bearings operate smoothly in fresh or seawater environments. With over 30 years of rubber processing expertise and in-house mold making capabilities, we provide customized solutions that reduce energy consumption, eliminate oil pollution risks, and extend equipment service life.
Water lubricated rubber bearings use water as the lubrication medium instead of oil. The resilient rubber lining absorbs shock and vibration while longitudinal grooves create a hydrodynamic water wedge between shaft and bearing, ensuring non-contact operation even at low speeds.
4.1 Excellent Wear Resistance and Embeddability
The elastic properties of rubber lining provide excellent foreign particle embedment capability. When sand particles or other hard impurities enter the bearing clearance, they can be pressed into the elastic material, avoiding scoring damage to the shaft journal. The unique longitudinal groove design allows abrasive particles to flow out with the water, preventing particle embedding on the bearing surface.
4.2 Significant Energy Saving and Environmental Benefits
Using water as the lubrication medium completely eliminates oil pollution risks, meeting global environmental requirements. The friction coefficient of water lubrication is much lower than traditional metal bearings, reducing drive power consumption. Energy losses caused by frictional resistance can be reduced by up to 85%.
4.3 Excellent Vibration Damping and Noise Reduction
The natural elasticity of rubber material gives the bearings excellent shock absorption capability, effectively attenuating shaft vibration and noise. After the hydrodynamic water wedge forms, the shaft operates without contacting the bearing, further reducing operating noise.
4.4 Efficient Heat Dissipation and Self-Cleaning
Water has a much higher specific heat capacity than oil. Flowing lubricating water quickly removes frictional heat, effectively controlling temperature rise. Simultaneously, the water flow continuously flushes the bearing surface, removing wear debris and keeping the friction pair clean.
4.5 Self-Developed Formulation Capability
Leveraging over 30 years of rubber material R&D experience, we can tailor rubber formulations according to customers' specific operating environments (water temperature, water quality, load, speed), precisely balancing hardness, elasticity, wear resistance and hydrolysis resistance to ensure optimal performance.
4.6 High Precision In-House Mold Manufacturing
Our mold workshop with 10 experienced mold masters and CNC machining centers ensures dimensional accuracy of bearing products. We can quickly respond to non-standard design requirements, providing one-stop customized services from mold development to precision machining of metal components.
Marine & Offshore Engineering
Stern tube bearings, rudder bearings
Deck machinery, crane sheave blocks
Suitable for fresh water and seawater environments
Industrial Pumps
Seawater circulating pump bearings
Submersible pumps, sewage pumps
Hydraulic gates, turbine guide bearings
Ports & Offshore Wind Power
Port machinery slewing bearings
Offshore wind turbine yaw bearings
Medical Equipment
Silent casters for nursing beds
Medical device transmission components
Leveraging over 30 years of rubber and plastic production experience and strong in-house mold manufacturing capabilities, we provide comprehensive customization services:
Material Formula Customization: Adjust rubber formulation according to operating medium (fresh water/seawater), temperature, and load conditions
Size Customization: Accept non-standard size drawings or physical samples, inner diameter from 20mm to 1000mm can be produced
Structure Customization: Customizable oil grooves, keyways, threaded holes, flanges and other special structures
Metal Component Integration: CNC machining center can simultaneously produce shaft sleeves, bearing housings and other metal accessories
Delivery Cycle: 15-25 days for batch delivery after sample confirmation
100% Factory Inspection: Each product undergoes dimensional accuracy, rubber hardness and bonding strength testing
Warranty Period: 12 months or 5000km sliding distance under normal operating conditions
Technical Support: 7×24 hour technical support, on-site measurement available
HENGSHUI RUILAIBAO offers high performance water lubricated bearings engineered for marine, pump and industrial applications. Utilizing specially formulated nitrile rubber with excellent abrasion resistance and low friction coefficient, our bearings operate smoothly in fresh or seawater environments. With over 30 years of rubber processing expertise and in-house mold making capabilities, we provide customized solutions that reduce energy consumption, eliminate oil pollution risks, and extend equipment service life.
Water lubricated rubber bearings use water as the lubrication medium instead of oil. The resilient rubber lining absorbs shock and vibration while longitudinal grooves create a hydrodynamic water wedge between shaft and bearing, ensuring non-contact operation even at low speeds.
4.1 Excellent Wear Resistance and Embeddability
The elastic properties of rubber lining provide excellent foreign particle embedment capability. When sand particles or other hard impurities enter the bearing clearance, they can be pressed into the elastic material, avoiding scoring damage to the shaft journal. The unique longitudinal groove design allows abrasive particles to flow out with the water, preventing particle embedding on the bearing surface.
4.2 Significant Energy Saving and Environmental Benefits
Using water as the lubrication medium completely eliminates oil pollution risks, meeting global environmental requirements. The friction coefficient of water lubrication is much lower than traditional metal bearings, reducing drive power consumption. Energy losses caused by frictional resistance can be reduced by up to 85%.
4.3 Excellent Vibration Damping and Noise Reduction
The natural elasticity of rubber material gives the bearings excellent shock absorption capability, effectively attenuating shaft vibration and noise. After the hydrodynamic water wedge forms, the shaft operates without contacting the bearing, further reducing operating noise.
4.4 Efficient Heat Dissipation and Self-Cleaning
Water has a much higher specific heat capacity than oil. Flowing lubricating water quickly removes frictional heat, effectively controlling temperature rise. Simultaneously, the water flow continuously flushes the bearing surface, removing wear debris and keeping the friction pair clean.
4.5 Self-Developed Formulation Capability
Leveraging over 30 years of rubber material R&D experience, we can tailor rubber formulations according to customers' specific operating environments (water temperature, water quality, load, speed), precisely balancing hardness, elasticity, wear resistance and hydrolysis resistance to ensure optimal performance.
4.6 High Precision In-House Mold Manufacturing
Our mold workshop with 10 experienced mold masters and CNC machining centers ensures dimensional accuracy of bearing products. We can quickly respond to non-standard design requirements, providing one-stop customized services from mold development to precision machining of metal components.
Marine & Offshore Engineering
Stern tube bearings, rudder bearings
Deck machinery, crane sheave blocks
Suitable for fresh water and seawater environments
Industrial Pumps
Seawater circulating pump bearings
Submersible pumps, sewage pumps
Hydraulic gates, turbine guide bearings
Ports & Offshore Wind Power
Port machinery slewing bearings
Offshore wind turbine yaw bearings
Medical Equipment
Silent casters for nursing beds
Medical device transmission components
Leveraging over 30 years of rubber and plastic production experience and strong in-house mold manufacturing capabilities, we provide comprehensive customization services:
Material Formula Customization: Adjust rubber formulation according to operating medium (fresh water/seawater), temperature, and load conditions
Size Customization: Accept non-standard size drawings or physical samples, inner diameter from 20mm to 1000mm can be produced
Structure Customization: Customizable oil grooves, keyways, threaded holes, flanges and other special structures
Metal Component Integration: CNC machining center can simultaneously produce shaft sleeves, bearing housings and other metal accessories
Delivery Cycle: 15-25 days for batch delivery after sample confirmation
100% Factory Inspection: Each product undergoes dimensional accuracy, rubber hardness and bonding strength testing
Warranty Period: 12 months or 5000km sliding distance under normal operating conditions
Technical Support: 7×24 hour technical support, on-site measurement available
