July 25, 2019
What's deep groove ball bearings?
The deep groove ball bearings are the most well-known bearings and which meet the requirements of high revolution and low noise.
These can be divided into 2 types of bearings: steel ones and plastic ones, and they can be used for several applications depending on the conditions.
July 25, 2019
Bearings are mechanical element located usually between a moving part and a stationary part.
For example, TOK's bearings are used for drawer of desk, refrigerator and sliding door etc.
Bearings can be sorted into 2 types: Sliding bearings and Rolling bearings.
June 18, 2019
Exclusive design for you
Even if there is a product you expect in catalog, please contact us.
TOK can customize the size of products whatever you want.
June 5, 2019
TOK rotary dampers behavior can be controlled
TOK rotary dampers provide you gentle movement to get safety and luxury.
Typically the damping behavior of dampers moves at constant velocity,
however TOK can customize the behavior based on your requirement.
March 12, 2019
Alternative product of Hysteresis Coupling
Hysteresis coupling is a mechanical product to transmit torque by using magnetic force.
For example, it would be used for packing machine and motor protect when over torque is loaded to.
However the hysteresis coupling might have disadvantage on cost-wise and dimension.
Februaly 13, 2019
What's TOK's bearing?
We receive most order plastic bearing in ball bearing series.
But, we have other material bearing.
For example, all stainless bearing, ceramic bearing, electrification prevention bearing and so on.
November 30, 2018
Why Plastic bearing?
Plastic bearings have lots of advantages compared to steel bearings:Continue Reading
October 12, 2018
How to utilize TOK?
Regarding our product ratio, custom products account for over 70% of all products.
And we have an abundance of experiences for various markets, for example sanitary, home appliance, furniture, industry, automotive, duplicating machine etc.
For now we would like to introduce to you about “How to utilize TOK?” Continue Reading
August 22, 2018
Magnetic torque limiter
What is a magnetic torque limiter?
It generates torque from magnetic hysteresis resistance.
The magnet does not slide so magnetic torque limiter is more durable. Continue Reading
July 27, 2018
Coil spring torque limiter
What is structure of coil spring torque limiter?
A coil spring is press-fitted in the sleeve, and when it turns, it slides and generates torque. The more it tightens a coil spring, the more it generates torque, but the more loosen coil springs, the lower it generates torque. Continue Reading
July 3, 2018
What's torque limiter?
Torque limiter is a device that cuts off torque transmission when overload is applied. It is also called safety-clutch. By preventing excessive rotation of the spindle, it prevents damage to the driven shaft and related to equipment. Continue Reading
June 15, 2018
TOK Exhibits at Manufacturing World Japan
We are excited to announce that TOK will exhibit at the 29th Manufacturing World Japan at Tokyo Big Sight from June 20th to 22nd. We will show our standard products like rotary dampers and bearings, and also our new developments SR2 and SRX! We are Continue Reading
June 13, 2018
Characteristics of temperature and speed dependence
Oil dampers have characteristics of temperature and speed dependence.
In general, the viscosity of liquid changes greatly with temperature. Especially the viscosity of oil changes markedly as temperature changes. The viscosity decreases as the temperature rises and the viscosity rises as it goes down. This phenomenon is called temperature characteristic. Continue Reading
May 14, 2018
Material of damper
PBT: Poly Butylene Terephthalate PBT is tough, rigid and excellent in thermal aging resistance.
In addition, the electrical characteristics are great in a wide temperature range, the water absorbency is low, and weather resistance and chemical resistance are Continue Reading
April 23, 2018
Torque is an instantaneous force that rotates an object around its rotary shaft. Torque expresses the necessary force when moving an object. For example, when riding a bicycle, Continue Reading
April 12, 2018
Torque generation method
There are mainly 3 ways to generate torque with a damper. 1. Pressure : it moves like syringe 2. Sliding Resistance : friction movement 3. Shear Resistance : it moves like scissors Continue Reading
April 2, 2018
What’s silicone oil?
TOK dampers are mostly filled with silicone oil. Silicone oil is colorless liquid and the most versatile product among silicone products. Continue Reading
March 23, 2018
What's rotary damper?
Rotary damper is the mechanical parts to buffer the impact of the lid closing / opening. Rotary damper is effective for consistent motion, soft closing / opening, improved safety, and makes a product luxurious. Continue Reading
March 15, 2018
TOK headquarter's office relocation
We are pleased to announce that effective from 20th March 2018, TOK headquarters in Japan will be relocated to new building as follows address, the main telephone and facsimile numbers remain unchanged. Continue Reading