THK Base Isolation Catalog - Technical Book

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1 THK Base Isolation Catalog - Technical Book

2 Base Isolation of Buildings THK s base isolation systems are capable of achieving base isolation even with lightweight buildings and towering buildings, whose base isolation was difficult with the conventional systems. Buildings themselves can be designed normally. Our base isolation products are flexible earthquake-proof systems. Lightweight buildings Capable of base isolating wooden buildings, light-gauge steel structures and reinforced concrete structures. Those buildings can be designed the same as conventional buildings. Mid- to low-rise buildings Steel-framed and reinforced concrete mid- to low-rise buildings, such as complex housings and office buildings, can be base isolated. Base-isolated frame Separates the building from the ground, and serves as the base of conventional buildings. It is made from steel frames, concrete and laminate wood. Applicable to various buildings THK s base isolation systems are capable of operating even with lightweight buildings. They can base isolate not only heavy buildings that can be base isolated even with the conventional systems, but also skyscrapers, wooden houses and light-gauge steel structures. Free cycle setting Linear motion re-circulating guide CLB has a small friction coefficient ( to 0.009) and its piece-to-piece variation is minimum (0.002 or less). Therefore, the bearing is capable of extending the service life of buildings (cycle of 5 seconds or longer), which were difficult to achieve with the conventional system, through setting the recovery/attenuation mechanisms.

3 High-rise buildings and skyscrapers Since CLB has a tensile strength, it is capable of base isolating high-rise, towering buildings, whose aspect ratios are large. Because our base isolation systems support buildings, we combined THK product technologies that support these systems. THK s base isolation systems use our core products including LM Guides. Those base isolation systems, which have been developed as applied versions of our products that employ our reliability, experience, creativity and technological strengths, reflect THK s unwavering confidence. Linear re-circulating guide CLB Bearing component that combines THK LM Guides crosswise Ball LM rail LM block End plate End seal Linear guide CLB is a base isolation system that achieves a heavy sustained load and an extremely low frictional force since the balls in the LM block rotate on the raceways cut into the LM rail while circulating through the block. In addition, since the LM block retains the LM rail via the balls, the bearing can also receive a pulling load. Viscous damping system RDT A damping system that uses THK Ball Screw Motion of the shaft Internal rotation Outer tube Ball screw nut Ball screw shaft Anti-seismic base (mat foundation slab) It normally supports the weight of the building via a base isolation system, but in case of earthquake, it receives the reaction force to relieve the building from vibrations. It absorbs earthquake energy that transmits to the building with a shearing resistance of a viscous body. Viscous damping system RDT has a structure where the linear motion of the ball screw that is converted with the ball screw nut into rotary motion, and a shearing force is applied to the viscous body filled between the inner tube connected with the nut and the fixed outer tube. Recovery system (rubber material) Non-THK product Also corresponds to tower buildings Linear motion re-circulating guide CLB has a structure that also withstands a pulling load. Even if the bearing supporting a high-aspect-ratio building receives a pulling load, the building will not float. When an earthquake occurs, base isolated houses freely move in all horizontal directions from their foundations. Therefore, they need to be returned to their original neutral positions after the earthquake stops. For that purpose, those houses are equipped with this type of recovery system (laminated rubber, etc.).

4 From design of base-isolated houses to installation of base isolation systems, THK provides strong support. Building of base-isolated houses involves various steps from the design to completion, ranging from technical works, such as ground survey and structural calculation, to practical works including material supply, construction and installation. From design of a base-isolated house to installation of a base isolation system and its management From building design to application for building construction Building design Ground survey Base isolation design Application for building construction Material order placement THK support items System selection System layout System estimate System selection (1) Support with a structural calculation system responding to base isolation notification (see page 19) (2) Referral of a partner design office Manufacture of the base isolation system Building design Height of the building 60 m or below Judgement Ground classification Category 1 Judgement Position of the base isolation layer Basic base isolation Judgement Structural calculation Unnecessary Judgment Technical standards (items 3 to 5 of Construction Ministry Notification No. 2009) + regulations on durability, etc. Over 60 m ground, or category 2 ground (no risk of liquefaction) Category 3 ground, or category 2 ground with risk of liquefaction Parts other than the basic base isolation (e.g., intermediate layer) Necessary (paragraph 2, Article 20 of the Building Standard Law) Application for recoendation Structural calculation (item 6 of Construction Ministry Notification No. 2009) + regulations on durability, etc. Time calendar response analysis + regulations on durability (ministerial approval) Building confirmation (e.g., specified administrative agency) Material delivery Building of the foundation and installation of the base isolation system Periodic inspection Supply of the base isolation system System installation procedure (Note) Judgement means one that is based on the design policy of the designer. For example, in some cases, even with those base-isolated buildings with height of 60 m or less and those constructed on category 1 ground, time calendar response analysis (ministerial approval) is selected in order to examine the plans in more details. From material order placement to foundation building and base isolation system installation Company applying THK s base isolation system Foundation builder Foundation material manufacturer Placing order for base isolation system THK distributor, etc. Placing order for foundation material and steel base Placing order for base isolation system installation Foundation material and steel base material Base isolation system installation Placing order for base isolation system Installation site, etc. THK Delivery of base isolation system System installation procedure

5 Precautions on designing a base-isolated building and installing a base isolation system In building a base-isolated house, it is necessary to conduct a ground survey or the like. Since the building moves horizontally in an earthquake, there are various precautions to be observed such as securing a horizontal clearance and attention to be paid to piping. Precautions on design 1. Survey of ground classification It is necessary to conduct a ground survey (boring) or obtain data of neighboring ground. Ground classification Incidental conditions Application method Supplemental note Category 1 ground Technical standard (items 3 to 5 of Construction Ministry Notification No. 2009), or structural calculation (item 6 of Construction Ministry Notification No. 2009) and regulations on durability, etc. Category 2 ground Category 3 ground No risk of liquefaction Risk of liquefaction Time calendar response analysis, etc. and regulations on durability (ministerial approval), etc. It is necessary to take a measure to prevent the ground from subsiding such as soil improvement. 2. Securing a horizontal clearance A base-isolated house is horizontally displaced from the foundation (land) in an earthquake or the like. Taking this into account, it is necessary to secure a horizontal clearance according to the intended use. Outdoor equipment, such as that of air conditioners and boilers, must be installed on the building, instead of being placed on the foundation. In addition, it is obliged to post a notice stating that the house is baseisolated as information for third persons. This building is a base-isolated house The base-isolated house moves horizontally in a large earthquake. To avoid collision with the building, keep away from the surroundings of the building by approximately xx cm. To prevent yourself from being caught between buildings, secure an interval approximately xx cm between the building and the fence or vehicle. Example of notice board Horizontal clearance a base-isolated building is required to secure A Places used for passage by third persons Response displacement + 80 cm B Places used for passage by residents Response displacement + 20 cm C Places other than A and B Response displacement + 10 cm If the response displacement is 30 cm A 30cm+80cm=110cm B 30cm+20cm=50cm C 30cm+10cm=40cm 3. Structure of piping Base-isolated buildings are horizontally displaced from the foundation (land) in an earthquake or the like. Therefore, the piping systems such as water and sewage and gas must have flexible structures, and the electric wires and telephone cables need to have extra lengths. Precautions on installing a base isolation system 1. Accurate leveling of the anchor plate 2. Checking the steps for installing CLB and RDT (RDT centering procedure, etc.) 3. Leveling of the whole base isolation system 4. Curing after the whole base isolation system is installed 5. Removal of temporary clamps of CLB Note: It is necessary to take a measure to prevent the system from moving during the installation.

6 Linear Guide CLB Cross Type The reference value of rolling friction coefficient and the upper limit of variations from the reference value The reference value of rolling friction coefficient of Linear Guide CLB and the upper limit of variations from the reference value are obtained from the following equations. Direction Model number Rolling friction coefficient Upper limit of variations from µ H133H H780H H133H H780H µ( /0l)/1000 µ( /0l)/1000 µ( t/t0l)/1000 µ( t/t0l)/1000 µmax1µ1.2 µmax2µ0.002 µmax1µ1.2 µmax2µ0.001 µmaxµ0.002 µmaxµ0.001 Reference value Upper limit of variations * The upper limit of variations from the rolling friction coefficient is either µ max1 or µ max2, whichever is greater, obtained from the following equation. * P and tp are loads applied on the bearing. The reference value, definition and measurement method of the accuracy after the installation After installing the system, mount anchor plate and other devices so that the following definitions and accuracy standards are met. After installation Item Block displacement Rail tilt angle X Rail crosswise tilt angle Y Rail twist angle Z Installation level difference h 5 or below X1/500 rad Y1/500 rad Z1/300 rad h0.01h and h1.5 Accuracy standard (RL1RL2)/2 X=(h1+h3)(h2+h4)/(FB12) Y=(h1+h2)(h3+h4)/(FB22) Z=d1d2/L A-A arrow view B-B arrow view Plane view

7 Dimensional table Land, Transport and Infrastructure Minister Approval No. : MVBR-0198, 0199, 0200 Model number of the system CLB011 CLB017 CLB021 CLB031 CLB041 CLB061 CLB082 CLB099 CLB133 External dimensions Flange plate LM block LM rail Long-term permissible load (kn) Short-term permissible load (kn) Vertical rigidity (kn/) Height Thickness Hole diameter (Bolt used) Longitudinal pitch pitch (max) pitch (min) Length Height H WFP TFP DFP (BFP) PFPL PFPSMAX PFPSMIN W L M1 W1 P0L tp0l P0AS tp0as K tk Standard set (M10) (M12) (M12) (M16) (M16) (M16) (M16) (M20) (M22) Limit deformation st Unit : CLB011 CLB017 CLB021 CLB031 CLB041 CLB061 CLB082 CLB099 CLB Upper: Flange plate length LFP () Middle: Flange plate mounting hole outer edge distance g () Lower: Product mass (kg) Limit deformation: dimension at which travel from the neutral position is possible For limit deformations other than the table above, contact THK.

8 Dimensional table Land, Transport and Infrastructure Minster Approval No. : MVBR-0198, 0199, 0200 Model number of the system CLB031H CLB041H CLB061H CLB082H CLB099H CLB133H External dimensions Flange plate LM block LM rail Long-term permissible load (kn) Short-term permissible load (kn) Vertical rigidity (kn/) Height Thickness Hole diameter (Bolt used) Longitudinal pitch pitch (max) pitch (min) Length Height H WFP TFP DFP (BFP) PFPL PFPSMAX PFPSMIN W L M1 W1 P0L tp0l P0AS tp0as K tk set (M16) (M16) (M16) (M16) (M20) (M22) Limit deformation st Unit : CLB031H CLB041H CLB061H CLB082H CLB099H CLB133H Upper: Flange plate length LFP () Middle: Flange plate mounting hole outer edge distance g () Lower: Product mass (kg) Limit deformation: dimension at which travel from the neutral position is possible For limit deformations other than the table above, contact THK.

9 Dimensional table Land, Transport and Infrastructure Minster Approval No. : MVBR-0198, 0199, 0200 Standard set set Model number of the system CLB250 CLB385 CLB500 CLB780 CLB250H CLB385H CLB500H CLB780H External dimensions Flange plate LM block LM rail Long-term permissible load (kn) Short-term permissible load (kn) Vertical rigidity (kn/) Height Thickness Hole diameter (Bolt used) Longitudinal pitch pitch Length Height H WFP TFP DFP (BFP) PFPL PFPS W L M1 W1 P0L tp0l P0AS tp0as K tk (M22) (M24) (M27) (M30) (M22) (M24) (M27) (M30) Limit deformation st Unit : CLB250 CLB385 CLB500 CLB780 CLB250H CLB385H CLB500H CLB780H Upper: Flange plate length LFP () Middle: Flange plate mounting hole outer edge distance g () Lower: Product mass (kg) Limit deformation: dimension at which travel from the neutral position is possible For limit deformations other than the table above, contact THK.

10 Linear Rotary Bearing CLB Type The reference value of rolling friction coefficient and the upper limit of variations from the reference value The reference value of rolling friction coefficient of Linear Rotary Bearing CLB and the upper limit of variations from the reference value are obtained from the following equations. Direction Model number Rolling friction coefficient Upper limit of variations from µ 1000T1560T 1000TH1560TH µ( p/p0l)/1000 µ( tp/tp0l)/1000 µmaxµ0.002 Reference value Upper limit of variations * P and tp are loads applied on the bearing. The reference value, definition and measurement method of the accuracy after the installation After installing the system, mount anchor plate and other devices so that the following definitions and accuracy standards are met. After installation Item Block displacement Rail tilt angle X Rail crosswise tilt angle Y Rail twist angle Z Installation level difference h 5 or below X1/500 rad Y1/500 rad Z1/500 rad h0.01h and h1.5 Accuracy standard (RL1RL2)/2 X=(h1+h3)(h2+h4)/(FB12) Y=(h1+h2)(h3+h4)/(FB22) Z=d1d2/L A-A arrow view B-B arrow view Plane view

11 Dimensional table Land, Transport and Infrastructure Minster Approval No. : MVBR-0267, 0268, 0269 Standard set set Model number of the system CLB1000T CLB1560T CLB1000TH CLB1560TH External dimensions Flange plate LM block LM rail Long-term permissible load (kn) Short-term permissible load (kn) Vertical rigidity (kn/) Height Thickness Hole diameter (Bolt used) Longitudinal pitch pitch Length Clearance Height H WFPL WFPS TFPL TFPS DFP (BFP) PFPL PFPS PFPS1 PFPS2 W L G1 M1 W1 P0L tp0l P0AS tp0as K tk (M27) (M30) (M27) (M30) Limit deformation st Unit : CLB1000T CLB1560T CLB1000TH CLB1560TH Upper Lower Upper Lower Upper Lower Upper Lower Upper: Flange plate length LFPL, LFPS () Middle: Flange plate mounting hole outer edge distance g () Lower: Product mass (kg) Limit deformation: dimension at which travel from the neutral position is possible For limit deformations other than the table above, contact THK.

12 Linear Rotary Bearing CLB Type The reference value of rolling friction coefficient and the upper limit of variations from the reference value The reference value of rolling friction coefficient of Linear Rotary Bearing CLB and the upper limit of variations from the reference value are obtained from the following equations. Direction Model number Rolling friction coefficient Upper limit of variations from µ 2000F3120F 2000FH3120FH µ( p/p0l)/1000 µ( tp/tp0l)/1000 µmaxµ0.002 Reference value Upper limit of variations * P and tp are loads applied on the bearing. The reference value, definition and measurement method of the accuracy after the installation After installing the system, mount anchor plate and other devices so that the following definitions and accuracy standards are met. After installation Item Block displacement Rail tilt angle X Rail crosswise tilt angle Y Rail twist angle Z Installation level difference h 5 or below X1/500 rad Y1/500 rad Z1/500 rad h0.01h and h1.5 Accuracy standard (RL1RL2)/2 X=(h1+h3)(h2+h4)/(FB12) Y=(h1+h2)(h3+h4)/(FB22) Z=d1d2/L A-A arrow view B-B arrow view Plane view

13 Dimensional table Land, Transport and Infrastructure Minster Approval No. : MVBR-0270, 0271, 0272 Model number of the system CLB2000F CLB3120F CLB2000FH CLB3120FH External dimensions Flange plate LM block LM rail Long-term permissible load (kn) Short-term permissible load (kn) Vertical rigidity (kn/) Height Thickness Hole diameter (Bolt used) Longitudinal pitch pitch Length Clearance Height H WFP TFP DFP (BFP) PFPL PFPS1 PFPS2 W L G1 M1 W1 P0L tp0l P0AS tp0as K tk Standard set set (M27) (M30) (M27) (M30) Limit deformation st Unit : CLB2000F CLB3120F CLB2000FH CLB3120FH Upper: Flange plate length LFP () Middle: Flange plate mounting hole outer edge distance g () Lower: Product mass (kg) Limit deformation: dimension at which travel from the neutral position is possible For limit deformations other than the table above, contact THK.

14 Viscous Damping System RDT The reference value of the resistance (damping force) Calculation of the resistance (damping force) The reference value of the resistance (damping force) of viscous damping system RDT is obtained from the following equation. Pn =1.16(QV+2.2)...(reference equation) Legends: Pn: Resistance (kn) a: Repetitive dependence coefficient Qv: Viscous resistance (kn) Qv=Sη(Vs,t)VsA S: Amplification factor S=πDn/Ld Dn: Outer diameter of inner tube (m) Ld: Lead (m) h(vs, t): Apparent viscosity η(vs,t)=ηt/(1+bvs β )10 6 b= ηt β=0.308ηt ht: Vs= Dynamic viscosity in low-speed constant region with viscous body temperature at t (cst) ηt=1.02 (25t) η25 h25: Vs = Dynamic viscosity in low-speed constant region with viscous body temperature at 25 (cst) Vs: Shearing strain rate (sec 1 ) Vs=SVn/dy Vn: Axial velocity (m/sec) dy: Shearing clearance (m) A: Shearing effective area (m 2 ) A=DnπLe Le: Effective length (m) Reference value of resistance (damping force) Model Axial velocity Vn m/sec (= 0.85, t =20± C number of system RDT05S RDT1S RDT2S RDT4S RDT6S RDT8S Axial damping force (kn) When calculated Repetitive dependence coefficient () Temperature (t) Reference value C Maximum damping force C All resistance force components Axial velocity-axial damping force performance diagram RDT1S The reference value of the accuracy after the installation After installing the system, mount anchor plate and other devices so that the following accuracy standards are met. After installation Item Direction Accuracy standard Ball screw shaft neutral displacement ±20 or below Level angle Elevation lv1/200 rad Run-out angle Plane ca1/100 rad Ball screw neutral displacement Level angle (elevation) Level angle (plane)

15 Dimensional table for RDT - short type Land, Transport and Infrastructure Minster Approval No. : MVBR-0220 Model number of system Overall system length Maximum extension Minimum compressive length Main unit length Maximum protrusion length Screw shaft diameter Lead Outer tube diameter Mounting bolt Buffer height Limit deformation *1 Limit speed Maximum resistance *2 Resistance force *3 Equivalent viscosity damping coefficient *3 *4 Mass Designation Quantity L Lmax Lmin L1 L0 D Ld D0 M Q MB st Vmax Fmax F Ceq m/sec kn kn knsec/m kg RDT05S RDT1S RDT2S RDT4S RDT6S RDT8S M5 M6 M6 M8 M8 M *1: Limit deformation = dimension at which travel from the neutral position is possible *2: Repetitive dependence coefficient = 1.0 when the temperature is 0 C *3: Repetitive dependence coefficient = 0.85 when the speed is 0.01 to 1.50 m/sec at temperature 20 C *4: Specify Ceq so that the work amount W of the axial force throughout one cycle is equal to the area of the ellipse.

16 Dimensional table for RDT 100,000 cst type Land, Transport and Infrastructure Minster Approval No. : MVBR-0221 Model number of system Overall system length Maximum extension Minimum compressive length Main unit length Maximum protrusion length Screw shaft diameter Lead Outer tube diameter Mounting bolt Designation Quantity Buffer height Limit deformation *1 Limit speed Maximum resistance *2 Resistance force *3 Equivalent viscosity damping coefficient *3 *4 Mass L Lmax Lmin L1 L0 D Ld D0 M Q MB st Vmax Fmax F Ceq m/sec kn kn knsec/m kg RDT2 RDT4 RDT6 RDT8 RDT10 RDT12 RDT14 RDT16 RDT18 RDT M8 M8 M8 M14 M14 M14 M14 M14 M (63) (63) (87) (87) (117) (117) (117) (117) (117) (117) *1: Limit deformation = dimension at which travel from the neutral position is possible *2: Repetitive dependence coefficient = 1.0 when the temperature is 0 C *3: Repetitive dependence coefficient = 0.85 when the speed is 0.01 to 1.50 m/sec at temperature 20 C *4: Specify Ceq so that the work amount W of the axial force throughout one cycle is equal to the area of the ellipse.

17 Dimensional table for RDT 300,000 cst type Land, Transport and Infrastructure Minster Approval No. : MVBR-0222 Model number of system Overall system length Maximum extension Minimum compressive length Main unit length Maximum protrusion length Screw shaft diameter Lead Outer tube diameter Mounting bolt Amplification section Attenuation section Designation Quantity Buffer height Limit deformation *1 Limit speed Maximum resistance *2 Resistance force *3 Equivalent viscosity damping coefficient *3 *4 Mass L Lmax Lmin L1 L0 D Ld D1 D3 M Q MB st Vmax Fmax F Ceq m/sec kn kn knsec/m kg RDT30 RDT40 RDT50 RDT60 RDT70 RDT80 RDT90 RDT100 RDT125 RDT M16 16 M16 M20 M20 M20 M20 M24 M (117) (117) (117) (117) (119) (119) (119) (119) (127) (127) *1: Limit deformation = dimension at which travel from the neutral position is possible *2: Repetitive dependence coefficient = 1.0 when the temperature is 0 C *3: Repetitive dependence coefficient = 0.85 when the speed is 0.01 to 1.50 m/sec at temperature 20 C *4: Specify Ceq so that the work amount W of the axial force throughout one cycle is equal to the area of the ellipse.

18 Case Examples of Design Characteristics This is an irregularly shaped wooden house in which one of the corners is cut and the center of one side is recessed. Since THK s base isolation system provides support, damping and recovery in different places, it can base-isolate even such an irregularly shaped wooden house. Base isolation systems CLB : 5units CLB : 5units HDR-200 : 5units RDT2-400 : 4units Building overview Base-isolated area : 107.1m 2 1st floor : 94.8m 2 2nd floor : 97.9m 2 Loft : 30.6m 2 Characteristics This is a steel-framed house in which a garage is built in part of the 1st floor. Since THK s base isolation system has a very small friction coefficient, it can base-isolate even a building with load fluctuations like this house. Base isolation systems CLB : 4units CLB : 8units HDR-200 : 8units RDT2-400 : 4units Building overview Base-isolated area : 94.7m 2 1st floor : 90.9m 2 2nd floor : 75.8m 2 3rd floor : 66.7m 2

19 Information on THK s structural calculation system responding to base isolation notification Our website shows a system with a function to perform structural calculation of base-isolated buildings responding to Construction Ministry Notification No (compliant with the content of its revision in 2004). The result of calculation can be printed. You can use it as a structural calculation sheet. Address of the structural calculation system website: System overview - Automatic selection of an optimal base isolation system model through specification of a desired cycle and response displacement - Automatic calculation of Ai distribution factor - Supports wind load and snow load - Arbitrary temperature correction - Detail output of calculation process -Damping system placement at any position - Outputting a resilience characteristic diagram of the base isolation layer - Outputting a working load/distortion relation diagram of a base isolation system - Outputting a system layout drawing and an eccentricity/rigidity center position diagram How to use the system 1. Register as a user on the top page (free). After registration, a password is sent to the registered mail address. 2. Enter the user ID (registered mail address) and the password distributed by mail in the login screen to log in. You can also change your password in the login screen. 3. an overview of the building and data on the ground (simplified calculation is also available). 4. Select a system, or enter the desired cycle and response displacement, and then determine the layout of the recovery system. Calculation is automatically started. Login screen Screen of the result of automatic calculation after data entry

20 Precautions on Use Precautions on handing (observe the following points to avoid danger) Tilting CLB with the temporary clamps removed may cause the LM block or LM rail to slide by their own weights, and damage it or fall onto the foot to cause injury. During transportation or in any process where the product may be tilted in installation, do not remove the temporary clamps. Dropping or hitting the product may damage it. Giving impact to the product could lose its function even if it looks intact. Disassembling the product may cause dust to enter the product or degrade the assembly accuracy of parts, which could make the product unable to maintain its original performance. Do not disassemble the product. When transporting RDT, holding the ball screw may damage it. Be sure to hold RDT itself when transporting it. - Leaning down the buffer of RDT from the horizontal position may let air enter it and make RDT unable to maintain its original performance. Lubrication Do not wipe off the grease applied on the product. The system contains AFA Grease (THK product), with which we have applied for acquisition of Land, Transport and Infrastructure Minster approval for the system. When replenishing grease during installation or periodical inspection, do not replenish other grease. Precautions on use When installing the system, take care not to contaminate the system with rain, dirt or dust as much as possible, and cure the system after it is installed. In addition, remove the curing equipment before the construction of the building. Take a measure to prevent the base isolation layer from being iersed from rain during the installation work. CLB is provided with temporary clamps for preventing fall during transportation and positioning the system when installing steel frames. Remove them before the construction of the building. LM Guide are the registered trademarks of THK Co., Ltd. The photo may differ slightly in appearance from the actual product. The appearance and specifications of the product are subject to change without notice. Contact THK before placing an order. Although great care has been taken in the production of this catalog, THK will not take any responsibility for damage resulting from typographical errors or omissions. For the export of our products or technologies and for the sale for exports, THK in principle complies with the foreign exchange law and the Foreign Exchange and Foreign Trade Control Law as well as other relevant laws. For export of THK products as single items, contact THK in advance. All rights reserved. EUROPE THK GmbH EUROPEAN HEADQUARTERS Phone: Fax: DÜSSELDORF OFFICE Phone: Fax: STUTTGART OFFICE Phone: Fax: MÜNCHEN OFFICE Phone: Fax: U.K. OFFICE Phone: Fax: ITALY MILANO OFFICE Phone: Fax: ITALY BOLOGNA OFFICE Phone: Fax: SWEDEN OFFICE Phone: Fax: AUSTRIA OFFICE Phone: Fax: SPAIN OFFICE Phone: Fax: TURKEY OFFICE Phone: Fax: THK FRANCE S.A.S. Phone: Fax: HEAD OFFICE , NISHI-GOTANDA, SHINAGAWA-KU, TOKYO JAPAN INTERNATIONAL SALES DEPARTMENT PHONE: FAX: Global site : NORTH AMERICA THK AMERICA,Inc. HEADQUARTERS Phone: Fax: CHICAGO OFFICE Phone: Fax: NEW YORK OFFICE Phone: Fax: ATLANTA OFFICE Phone: Fax: LOS ANGELES OFFICE Phone: Fax: SAN FRANCISCO OFFICE Phone: Fax: BOSTON OFFICE Phone: Fax: DETROIT OFFICE Phone: Fax: TORONTO OFFICE Phone: Fax: SOUTH AMERICA THK BRASIL LTDA. Phone: Fax: CHINA THK (CHINA) CO.,LTD. HEADQUARTERS Phone: Fax: SHANGHAI OFFICE Phone: Fax: BEIJING OFFICE Phone: Fax: CHENGDU OFFICE Phone: Fax: GUANGZHOU OFFICE Phone: Fax: THK (SHANGHAI) CO.,LTD. Phone: Fax: TAIWAN THK TAIWAN CO.,LTD. TAIPEI OFFICE Phone: Fax: TAICHUNG OFFICE Phone: Fax: SOUTHERN OFFICE Phone: Fax: KOREA SEOUL REPRESENTATIVE OFFICE Phone: Fax: SINGAPORE THK LM SYSTEM Pte. Ltd. Phone: Fax: INDIA BANGALORE REPRESENTATIVE OFFICE Phone: Fax: Printed in Japan

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