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  • Seismic Isolation

    • Super Spring-Confined Pb Rubber Bearing SPR-S

      SPR-S

      The SPR-S is a seismic isolation bridge bearing that combines in a compact device, high damping rubber, and spring-confined lead plug(s) to achieve better seismic performance and cost savings due to a higher energy dissipation capacity.

    • Spring-Confined Pb Rubber Bearing SPR

      SPR

      The SPR is a rubber seismic isolator with confined lead plug(s) press-fit into one or more cavities. The lead plug deforms and dissipates seismic energy to minimize or eliminate structural damage during an earthquake.

    • Hybrid Bearing HB

      Hybrid Bearing HB

      Kawakin Hybrid Bearing combines a laminated rubber bearing and a pot bearing in a single device. This original device can accommodate larger rotations than conventional rubber bearings and provide remarkable cost savings.

    • High Damping Rubber Bearing HDR-S

      HDR_S

      The HDR-S is made of alternate layers of high damping rubber and steel. The unique rubber compound has been designed to combine friction and viscous damping to provide high energy dissipation capacity to the bridge isolator.

  • Vibration Control

    • Viscous Damper KVD

      KVD

      The KVD is Kawakin Viscous Damper for bridge applications. It uses a highly durable viscous silicon and provides stable damping even in extreme temperature variations thanks to its internal accumulator.

  • Seismic Strengthening

    • Unseating Prevention Restrainer SP CHAIN

      SPC

      Chain type restrainer with energy dissipation capacity to avoid bridge collapse due to deck unseating in a strong earthquake.

    • Compact Stopper KCS

      KCS

      Our patented stopper can accommodate displacements in longitudinal and transverse directions and provide restraint against uplift forces. A cost-effective device that effectively deals with unexpected seismic forces and displacements.

  • Structural Bearings

    • Disc Rubber Bearing DRB

      DRB

      Low-profile and compact bearing that uses a highly durable and thoroughly tested polyurethane elastomeric disc to withstand high vertical loads and accommodate rotations.

    • BP・A

      BP・A

      Our spherical bearing uses a high-strength brass spherical plate with a solid lubricant to provide a very durable and reliable bearing. It is a common choice as bridge bearing in the Japanese High-Speed Railway System.

    • Pot Bearing CORE-POT

      BP・B

      Our CORE-POT uses a confined rubber plate to accommodate deck rotations and a wear-resistant sliding material to absorb horizontal deck displacements.

    • LB

      LB

      Kawakin's line bearing is an easy-to-install and cost-effective support characterized by a simplified and compact structure. It is especially suitable for short-span bridges.

    • Pin & Pin-Roller Bearing PN & PNR

      ピンローラー

      Kawakin Pin and Pin-Roller bearings are steel bridge bearings with excellent mechanical properties to achieve reliability and compact dimensions. It uses a special heat treatment for its steel rollers for a higher hardness and corrosion resistance.

    • Pivot & Pivot-Roller Bearing PV & PVR

      NSA

      Kawakin Pivot and Pivot-Roller bearings are steel bridge bearings designed for high vertical loading combined with large rotations in all directions. They are often used in suspension, truss, or curved bridges.

  • Special Bearing

    • Monorail Bearing MRB

      モノレール用支承

      This bearing is recognized as a standard bearing for the Alweg type monorail. It was developed specifically to resist large uplift forces due to the train's movement.

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  • Structural Bearings

    • Super Spring-Confined Pb Rubber Bearing SPR-S

      SPR-S

      The SPR-S is a seismic isolation bridge bearing that combines in a compact device, high damping rubber, and spring-confined lead plug(s) to achieve better seismic performance and cost savings due to a higher energy dissipation capacity.

    • Spring-Confined Pb Rubber Bearing SPR

      SPR

      The SPR is a rubber seismic isolator with confined lead plug(s) press-fit into one or more cavities. The lead plug deforms and dissipates seismic energy to minimize or eliminate structural damage during an earthquake.

    • Hybrid Bearing HB

      Hybrid Bearing HB

      Kawakin Hybrid Bearing combines a laminated rubber bearing and a pot bearing in a single device. This original device can accommodate larger rotations than conventional rubber bearings and provide remarkable cost savings.

    • High Damping Rubber Bearing HDR-S

      HDR_S

      The HDR-S is made of alternate layers of high damping rubber and steel. The unique rubber compound has been designed to combine friction and viscous damping to provide high energy dissipation capacity to the bridge isolator.

    • Disc Rubber Bearing DRB

      DRB

      Low-profile and compact bearing that uses a highly durable and thoroughly tested polyurethane elastomeric disc to withstand high vertical loads and accommodate rotations.

    • BP・A

      BP・A

      Our spherical bearing uses a high-strength brass spherical plate with a solid lubricant to provide a very durable and reliable bearing. It is a common choice as bridge bearing in the Japanese High-Speed Railway System.

    • Pot Bearing CORE-POT

      BP・B

      Our CORE-POT uses a confined rubber plate to accommodate deck rotations and a wear-resistant sliding material to absorb horizontal deck displacements.

    • LB

      LB

      Kawakin's line bearing is an easy-to-install and cost-effective support characterized by a simplified and compact structure. It is especially suitable for short-span bridges.

    • Pin & Pin-Roller Bearing PN & PNR

      ピンローラー

      Kawakin Pin and Pin-Roller bearings are steel bridge bearings with excellent mechanical properties to achieve reliability and compact dimensions. It uses a special heat treatment for its steel rollers for a higher hardness and corrosion resistance.

    • Pivot & Pivot-Roller Bearing PV & PVR

      NSA

      Kawakin Pivot and Pivot-Roller bearings are steel bridge bearings designed for high vertical loading combined with large rotations in all directions. They are often used in suspension, truss, or curved bridges.

    • Monorail Bearing MRB

      モノレール用支承

      This bearing is recognized as a standard bearing for the Alweg type monorail. It was developed specifically to resist large uplift forces due to the train's movement.

  • Expansion Joints

    • FCD Compact Joint

      KFC

      This original joint from Kawakin, made of spheroidal graphite cast iron, presents excellent durability and waterproofing characteristics. Due to its low profile, it can be easily installed on new and existing bridges.

    • Water Seal System KM Top Barrier

      KMトップバリア

      The KM Top Barrier is a waterproof system for bridge expansion joints that integrates a rubber layer, a silicon coating, and dustproof foam to provide excellent elasticity, weather resistance, and durability.

    • Anti-Slip Coating KM

      KMノンスリップコーティング

      Employing leading-edge technology, we developed this coating to prevent slippage and corrosion on expansion joints. The KM anti-slip coating provides high friction and is exceptionally durable.

  • Value-Added Products

    • Al-Mg Plasma Arc Thermal Spray Coating TAPS

      TAPS

      TAPS is an anti-corrosion coating method developed in Japan that melts and projects an Al-Mg alloy wire onto the surface of steel plates and bolts. It creates a more effective and durable sacrificial protection layer than conventional galvanizing methods.

    • Ozone Protection Coating K-PRO

      K-PRO工法

       The Kawakin K-Pro is a highly elastic coating applied to the rubber surface of elastomeric new or already installed elastomeric bearings to protect the rubber from ozone cracking and decrease life cycle costs.

  • Other Devices

    • Viscous Damper KVD

      KVD

      The KVD is Kawakin Viscous Damper for bridge applications. It uses a highly durable viscous silicon and provides stable damping even in extreme temperature variations thanks to its internal accumulator.

    • Unseating Prevention Restrainer SP CHAIN

      SPC

      Chain type restrainer with energy dissipation capacity to avoid bridge collapse due to deck unseating in a strong earthquake.

    • Compact Stopper KCS

      KCS

      Our patented stopper can accommodate displacements in longitudinal and transverse directions and provide restraint against uplift forces. A cost-effective device that effectively deals with unexpected seismic forces and displacements.

    • Catch Basin

      排水枡

      As part of a bridge's waterproofing and drainage system, the catch basins are essential for the safety and long-term use of the structure. Kawakin has extensive experience manufacturing various types of catch basins using highly durable materials.

    • Elastomeric Bearings

      パッド支承

      We offer a wide variety of long-lasting elastomeric bearings ranging from our CORE-PAD bearings, for short-span bridges, to large-size bearings with external loading plates and side blocks to transfer higher vertical and horizontal forces.

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  • Seismic Isolation

    • Seismic Isolation Oil Damper KYM

      KYM

      High-performance oil damper for seismically isolated buildings. The large damping added by the KYM eliminates seismic damage and reduces the dimensions and cost of the isolation bearings.

    • Flast Slider KMB

      Flast Slider KMB

      Compact, high-strength, and highly durable bearing widely used in Japan in seismically isolated buildings in combination with rubber bearings and energy dissipation dampers.

  • Vibration Control

    • Vibration Control Device with Amplification Factor ADVANCED

      ADV

      Toggle-brace-damper configuration that amplifies movements transmitted to the damper. Consequently, the size and number of dampers needed to decrease vibrations in a building are significantly reduced.

    • Vibration Control Oil Damper KYD

      KYD

      KYD is a cylindrical oil damper with an extensive track record in Japan. Its accumulator, special rubber sealings, and low working pressure provide a highly durable and stable performance.

  • Seismic Strengthening

    • Buckling Restrained Brace ADW

      Buckling Restrained Brace ADW

      A buckling restraint brace with a stable response under tension and compression forces. The length of the braces can be easily adjusted on-site, which reduces time and cost during installation.

    • Steel Pipe Brace AD

      ADブレース

      A visually pleasing and easy-to-install steel pipe brace commonly used for seismic retrofit projects to strengthen the structure and reduce displacements induced by strong earthquakes.

Search by product

  • Structural Bearings

    • Flast Slider KMB

      Flast Slider KMB

      Compact, high-strength, and highly durable bearing widely used in Japan in seismically isolated buildings in combination with rubber bearings and energy dissipation dampers.

  • Dampers

    • Vibration Control Device with Amplification Factor ADVANCED

      ADV

      Toggle-brace-damper configuration that amplifies movements transmitted to the damper. Consequently, the size and number of dampers needed to decrease vibrations in a building are significantly reduced.

    • Vibration Control Oil Damper KYD

      KYD

      KYD is a cylindrical oil damper with an extensive track record in Japan. Its accumulator, special rubber sealings, and low working pressure provide a highly durable and stable performance.

    • Seismic Isolation Oil Damper KYM

      KYM

      High-performance oil damper for seismically isolated buildings. The large damping added by the KYM eliminates seismic damage and reduces the dimensions and cost of the isolation bearings.

  • Braces

    • Buckling Restrained Brace ADW

      Buckling Restrained Brace ADW

      A buckling restraint brace with a stable response under tension and compression forces. The length of the braces can be easily adjusted on-site, which reduces time and cost during installation.

    • Steel Pipe Brace AD

      ADブレース

      A visually pleasing and easy-to-install steel pipe brace commonly used for seismic retrofit projects to strengthen the structure and reduce displacements induced by strong earthquakes.

  • Other Devices

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