bearing, TOK, Inc.

About Us

About Us

TOK, Inc. was established in 1938 and has been the world leader in designing mechanical and motion technologies of Plastic Bearing for more than 50 years. We produce various TOK bearings, clutches, dampers, geared motors, and torque limiters for use in a wide range of industries and, among other things, furniture, electric appliances, office equipment, and medical devices.

TOK is proud of its high level of quality, customer service, and reliability. Besides, our clients' ideas and feedbacks are significant to us, and our R&D team is happy to create custom-made products to develop new cutting-edge technologies for our clients' projects. 

Let us help you with your next design or application with our superior quality products and service.

Company name TOK, Inc.
Location: 1-17-12, Azusawa, Itabashi, Tokyo, 174-8501, Japan
Founded: June 1, 1925
Established: December 1, 1938
President & CEO: Keisuke Yoshikawa
TEL: +81-3-3969-1531
FAX: +81-3-3558-7276
The fiscal period:

September
TOK_HQ
  • Yamanashi Factory (Japan)

    TOK, Inc. Yamanashi Plant
    Company name:
    TOK, Inc. (Yamanashi Factory)

    Location:
    809, Shimoimai, Kai-city, Yamanashi Pref., 400-0105 Japan
    TEL:
    +81-551-28-4581
    FAX:
    +81-551-28-4556
  • Shanghai Factory (China)

    TOK, Inc. Shanghai Plant (China)
    Company name:
    Shanghai TOK Precision Damper Bearing Co., Ltd.
    Location:
    Bldg2, 3 Yanghebang Road, Jiuting Town, Songjiang District, Shanghai, China 201615
    TEL:
    +86-21-6769-6773
    FAX:
    +86-21-6769-6922
  • Shenzhen Factory (China)

    TOK, Inc. Shenzhen Plant (China)
    Company name:
    TOK Precision Component (Shenzhen) Co., Ltd.
    Location:
    1-1 1-5 Yanbao Street, Zhongxin Village, Pingdi Town, Long gang District , China
    TEL:
    +86-755-8994-3116
    FAX:
    +86-755-8994-3126
  • Hong Kong Sales Office (China)

    TOK, Inc. Hong Kong Sales Office
    Company name:
    TOK Industry (H.K) Ltd.
    Location:
    Rm.1711, 17/F Landmark North, 39 Lung Sum Avenue, Sheung Shui, N.T., Hong Kong, China
    TEL:
    +852-2690-2829
    FAX:
    +852-2690-2845
  • TOK Europe GmbH (Germany)

    TOK, Inc. Düsseldorf Representative Office
    Company name:
    TOK Europe GmbH
    Location:
    Oststr. 54, 40211 Düsseldorf Germany
    TEL:
    +49-211-9350-131
    FAX:
    +49-211-9350-150
  • TOK America, Inc. (USA)

    TOK America, Inc.
    Company name:
    TOK America, Inc.
    Location:
    15707 Rockfield Blvd. Suite 240
     Irvine, CA 92618 USA
    TEL:
    +1-844-486-5872
    FAX:
    +1-949-281-6338

TOK Group History

Dec. 1938 Launched the Yoshikawa Seisakusho Co., Ltd with capital of 190.000 yen Azusawa, Itabashi-ku, Tokyo
Jan. 1946 Changed company name to Yoshikawa Sangyo Co., Ltd.
Oct. 1965 Developed and began highly successful sales of plastic bearings
Jun. 1972
Changed company name to TOK Bearing Co., Ltd.
Apr. 1974
Awarded as a model factory for small business rationalization by the Small and Medium Enterprise Organization(SMEO)
Mar. 1983 Began sales of one-way clutches
Apr. 1986 Merged TOK Seiko Co., Ltd Completed a new TOK Bearing factory in Yamanashi and commenced operations as the Yamanashi factory
Jul. 1989 Began sales of torque limiters and TOK dampers
Jan. 1990 Received a nationwide award from the Small and Medium Business Research Institute
Feb. 1990 Awarded the 15th Invention Grand Prix for the invention of the one-way clutch
Nov. 1991 Received and award for being and environmentally friendly enterprise from The Tokyo Chamber of Commerce of Industry
May. 1994 Awarded as a model factory for small business rationalization for the consecutive 11 years by SMEO
Jul. 1995 Established the Osaka office
Feb. 1996 Established the Yamanashi office
Sep. 1996 Established the Nagoya office
Oct. 1999 Acquired ISO 9001 certification
Nov. 2000 Acquired ISO 14001 certification
Oct. 2001 Established TOK Industry(H.K.)Ltd.
Dec. 2000 Began consignment production of one-way clutches in Yanbao, Shenzhen city
May. 2002 Received the Emperor's royal visit to the Tokyo factory
Nov. 2002 Established Shanghai TOK Precision Damper Bearing Co., Ltd.
Oct. 2004 Established Shenzhen TOK Precision Component Moved to manufacturing base from Yanbao to Longgang
Jan. 2005 Acquired ISO 9001 and 14001 certifications in Shenzhen TOK Precision Component
Feb. 2006 Began sales of magnet type of torque limiters
May. 2006 Awarded as one of 300 small and medium vital manufacturing companies in Japan by SMEO
Dec. 2006 Japanese Prime Minister Abe toured the Tokyo factory
Jun. 2008 Acquired ISO 9001 and 14001 certifications in Shanghai TOK Precision Damper Bearing Co., Ltd.
Dec. 2012 Established the Product Development Center in Tokyo
Apr. 2013 Established TOK PRECISION COMPONENT(SHENZHEN)CO., LTD
Feb. 2014 Established a Representative Office in Dusseldorf, Germany
Dec. 2015 Established TOK America, Inc. in Irvine California, USA
Apr. 2017 TOK Bearing Co., Ltd. was renamed to TOK, Inc. for the 80th Anniversary
Feb. 2018 Constructed new factory building in TOK’s Yamanashi factory
Mar. 2018 TOK headquarters was relocated
Jun. 2023 Established TOK Europe GmbH

Environmental Policy

TOK, Inc., environment


Awareness of environmental conservation is the most important objective for TOK. Our products: Bearings, One-way clutches, torque limiters, and rotary dampers are carefully monitored during the production process.
We put the utmost effort into conserving the environment and awareness of environmental issues because what we do to our planet affects us individually and collectively, now and for future generations.

TOK, Inc., environment


1. We recognize the importance of environmental conservation and implement our production activities while considering their environmental impact.

2. We comply with all applicable requirements related to the environmental aspects of our company. Besides, we endeavor to protect the environment by setting voluntary standards and improving our standards towards having as little environmental impact as possible.

3. Each individual must construct and improve the environmental management system to improve performance and prevent further pollution of the environment.

TOK, Inc., environment

4. When designing products, we implement an environmental management system to conserve and save energy and resources to reduce environmental impact.

5. Continuously setting environmental objectives and targets to improve the environment.

6. Each TOK individual is aware of these policies and strives to reach the goals of our environmental management system.

7. This policy is disclosed to the general public on our website and can be obtained at our reception desk.

ISO 14001 Certification
TOK, Inc. ISO14001

Quality Control

To create products of the highest quality and meet your performance needs, our production team utilizes the best quality control, explained below.
  • Consulting / Development / Design

    Materializing customers desires

    We will plan and propose new technologies and services characteristic of our organization. We test these new technologies using machines that focus on “control rotations” and ensure that the results meet your standards. Through our vast experience accumulated through past client interactions and inventions in a wide range of industries, we will work with you in ensuring you get the best possible design and performance at the lowest possible costs.

  • TOK_design TOK_consulting
  • Trial Productions

    In-house capabilities in machining enable speedy responses

    A product design begins by evaluating a trial production. We independently process components, resins, and metals used for trial productions. We keep our client’s requests in mind during these trial productions and try to ensure that we achieve your desired results.

  • TOK_trial productions TOK_tiral productions (2)
  • Evaluation Tests

    Leverages our proprietary evaluation equipment and advanced evaluation know-how

    At TOK, we take pride in our development structure and our belief in the concept of value analysis: making sure that our clients are getting the desired results at the lowest possible costs to them regarding material, design, and implementation. To stand on this belief of ours, we thoroughly perform evaluation tests for each product. To ensure our strict evaluation standards, we have developed our evaluation equipment independently. We use testing machines produced based on our expert experience to perform daily evaluations that guarantee superior performance for all our products.

  • TOK_evaluation TOK_test machine
  • Mold Designing / Building

    Building high qualities of molds

    In manufacturing plastic products, building a mold is one of the most critical processes. To meet a wide variety of customer needs, TOK utilizes various machine tools to build high precision molds.

  • TOK_mold designing TOK_mold building
  • Designing and Assembling Productive Facilities

    Global Quality Controlling Structures

    “Create an Environment That Produces Excellent Products” is one of our most central themes, and as such, TOK has continued to improve production facilities and production methods. We design and manufacture production equipment such as auto-assembly machines (for bearings and one-way clutches) built while conducting improvement. In-house designed production equipment and rigorous quality control structures have built a highly reliable and efficient production system. Besides, to build a global quality system, we have positioned the Yamanashi factory as the main production factory. The top standard of our production process, which from our overseas manufacturing subsidiaries, then applies that same top level of production and quality control to match Japan's.

  • TOK_designing_assembling_facilities TOK_designing_assembling_facilities (2) TOK_designing_assembling_facilities (3) TOK_designing_assembling_facilities (4)
  • Inspection Equipment

    A wide array of inspection equipment producing high-quality products

    Key Inspection Equipment
    Gear rolling testers: Ogasawara Precision
    Three-dimensional measuring machine: Mitutoyo
    Image measuring machine: Mitutoyo
    Laser measuring machine: Mitutoyo
    Rockwell hardness testing machine: Mitutoyo
    Roundness measuring machine: Tokyo Seimitsu
    Shape measuring machine: Tokyo Seimitsu
    Surface property measuring machine: Tokyo Seimitsu
    Vickers hardness testing machine: Shimadzu
    Load testing machine: Shimadzu

  • TOK_inspection TOK_inspection (2)
ISO 9001 Certification
TOK, Inc. ISO14001

Company Profile

CREATE NEW MOTION

TOK IS A COMPANY THAT PROVIDES ANY MECHANICAL MOVEMENT IN THE WORLD WITH MECHANICAL CONTROL TECHNOLOGY.

Since TOK was established in 1938, our products have been indispensable to the world. The best choice is a product that can be made only by TOK. We create a new movement that has never been seen before, by our specialty combining rotation, shock absorption, power cutoff, power transmission, and speed control technology. TOK will continue to create industry-leading movements.
TOK, Inc., environment

BEARING
TORQUE LIMITER
ROTARY DAMPER
ONE-WAY CLUTCH
SPEED REDUCER

  • image

    PUBLIC
    Cashing machine
    Auditorium seat
    Cash r
    egister
    Vending machine

  • image

    OFFICE
    Copying machine
    Printer
    Cabinet
    Ceiling fan

  • image

    INDUSTRY
    Electric driver
    Conveyor belt
    Etching machine
    Molding machine

  • image

    DAILY LIFE
    Refrigerator
    Toilet seat
    Garbage can
    Sliding door

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    LABORATORY
    Medical equipment
    Hemanalysis device
    Chemical cleaning device


LOCATIONS

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Our Service

TOK IS YOUR "ONE-STOP RESOURCE"

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Besides offering a single item, we will be a "one-stop resource" for procurement, design, and assembly of the core components that the customer ultimately desires.

CREATE TOGETHER WITH YOU

TOK, Inc., environment

We are doing customized development tailored to customer’s needs.
We will provide the mechanisms that customers need on a case basis.

CREATE INNOVATIVE MECHANISMS

TOK, Inc., environment

We are developing power control mechanisms and parts that improve the customers' products.