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Mechanical engineering blog | Rotary Dampers | Ball Bearings | One-Way Clutches | Torque Limiters

 Contents:


1. Features of TOK A-series metal bearings





(1) Small size and high load capacity

The best feature of this product is its small size with a 19mm outer diameter, yet it has a load capacity of up to 50kg.


(2)Anti-corrosion function

A-series bearings are plated, so they are less likely to rust and you can use the bearing longer than normal metal bearings.


(3)Easy to install

Screw and rivet types are available for easy installation.

The screw type can be installed with a common tool like a screwdriver, while the rivet type is suitable for installation in small spaces.

You can choose the bearing type that best suits your application.








2. Application examples

Used in a variety of places such as money machines (ATMs) / vending machines / production facilities / store fixtures / cash drawers etc.


Metal bearings inserted in resin are also available.

In addition to having a high load capacity, it is possible to make the operation noise quieter.

Click here to view the TOK bearing catalog.



Next time, we are going to introduce  “I-Series”, metal bearings inserted in resin, in more detail.


If you are interested in our products or have any questions, please feel free to contact us.








 

 Contents:

1. Two advantages of TD69 damper
2. Specifications of TD69 damper
3. Application examples

1. Two advantages of TD69 damper






Wide temperature range  

The best feature of TD69 is that it can be used in a wide range of temperatures. 

It can be used at temperatures between -5 and 80°C, compared to TOK’s typical  damper that is used from 0 to 40°C.

High torque and lightweight

The TD69 weighs about 12g each and is available in a wider range of torque types. 

TOK is able to achieve this lightweight and wider torque range through the use of high-performance plastic.


2. Specifications of TD69 damper

Damping torque: 1.5 to 4.0N・m

Temperature range: -5 to 80°C

*The temperature range of 3.5/4.0N・m would be different.

Product detail: http://tok-inc.com/en/products/td43.html

Motion and installation: http://tok-inc.com/en/contents/applications.html


3. Application examples





Copy machines

In case of competitors' dampers,  high heat decreases the damping effect and it doesn't work well. 

However, TD69 could solve that problem because it can be used at high temperatures.


Toilet seats

 If you use dampers in wet environments, that will cause rust.


 However, there is no need to worry about the problem, because TD69 is made of high-performance plastic that has chemical resistance and supports high torque.



Introduction of other needs


 Car glove boxes

Lightweight (using light resin instead of die-casting parts)


 Range hoods

High temperature (high-performance plastic)


Washing machine lids

Rust prevention(using resin instead of die-casting parts)



Next time, we are going to explain about a robust steel bearing that has an outer diameter of Ø22mm and load of 80kg.

See you next time.

 

If you are interested in our products or have any questions, please feel free to contact us.


 The world has various social problems such as poverty, natural disasters, climate change and protection of children. TOK is also addressing these social issues in addition to its mechanical component manufacturing business. We are going to introduce our initiatives for "SDGs".

*The Sustainable Development Goals (SDGs), also known as the Global Goals, were adopted by all United Nations Member States in 2015 as a universal call to action to end poverty, protect the planet and ensure that all people enjoy peace and prosperity by 2030.

(Source): What are the Sustainable Development Goals? by UNDP


Five initiatives for “SDGs”





1.    Collecting used stamps to donate vaccines

Polio vaccines equal to the weight of used stamps collected at our office will be donated to developing countries through volunteer organizations.

We donated enough stamps for 25 vaccines. (As of the end of the September, 2020)














2.    
Collecting old clothes 
to donate vaccines

We donated old clothes to volunteer groups.

Old clothes are used in developing countries for reuse / job creation / vaccine donation (1 bag for about 5 people).

We have already shipped 28 bags in February 2021.






3.    Cleanup activity

We hold cleanup activities around the office once a month.




4.Making TOK eco-bags to reduce plastic waste

We made TOK original eco-bags/ reusable water bottles, and distribute them to company member. They reduce plastic waste.





5.    Planting of trees for environmental conservation

We present trees to employees to celebrate memorials.

It leads to environmental conservation such as ecosystem conservation / controlling global warming / replenishment of water source / CO2 reduction.




We will continue to contribute to the achievement of the SDGs through such initiatives.

If you have any questions, please contact us.



1. Inquiries about purchase methods and payment

Q. What is the MOQ for TOK’s product?

A. MOQ is only set for bearings.

・Bearings: 100 pcs (special bearings such as chemical-resistant is available from 1 pc.)

・Other products: 1 pc

 

Q. What is the size of the packing box?

A. There are three types of packing boxes: small, medium, and large.

The dimensions are as follows.







Q. What are the payment methods? Is it possible to pay by credit card?

A. In most cases, we request payment from our customers via bank transfer.

For transactions of small amount, credit card (VISA/Mastercard) payment is also available.


Q. Where are TOK products produced?

A. Our products are produced at factories in Japan and China.


Q. Is it possible to trade using our courier account?

A. Yes, it is possible.


2. Inquiries about products and technical questions

Q. Do you have chemical-resistant products?

A. Yes, the following are our main chemical-resistant products.

Bearings: PK/PV series

Rotary damper: TD99 series

Please contact us for more details about chemical-resistant materials that we have available.

 

Q. Does TOK provide product samples? Is it possible to try some samples of typical products?

A. Yes, we can provide a paid sample.

We also offer a sample box containing a collection of our main products.








Q. If I request a sample, can you ship it out immediately?

A. If the product is in stock, it can be shipped on the same day at the earliest.


Q. Can TOK design products according to customers’ specifications?

Can you make a prototype for me?

A. We can design products according to your specifications and also make prototypes.

TOK have designed and produced multiple of custom products to meet our customers'

specifications. Please feel free to consult with us.


Q. How many types of files can convert CAD data?

A. It is possible to convert from approx. 100 types of files.








Q. Is it possible to get a quotation without any technical drawings that I’ve produced?

A. Yes, it is possible. If you give us the product information, we will create a drawing for you and quote it.

 

Thanks for reading our article all the way through. Please contact us if you have any questions.

We look forward to assisting you!




If you have purchased dampers or are considering purchasing dampers, do you have any of these problems?

"I have a surplus of dampers in stock, but the torque doesn't match and I can't substitute them for other applications.”

"The more inventory I have, the more difficult it is to manage."


Our product "Torque-Adjustable Damper: TD27/TD28" is compatible with various applications, and can solve such problems.


Two features of the adjustable damper: TD27/TD28

1. More than twice the torque range covered by a single damper

The torque of the damper can be adjusted, so there is no need to purchase a damper with torque that matches your application.

To adjust the torque, simply tweak the side of the damper with a flathead screwdriver.
 

Since the torque adjustment range is more than doubled, the same adjustable damper (TD27/TD28) can be used for both 0.49 N-m and 1.27 N-m machines.



 By adjusting the torque, it is possible to respond with greater precision to applications.


2. Eight possible mounting options of damper & bracket.

The position of damping hinge (damper & bracket) can be changed depending on how the dedicated bracket is attached to the damper.
 
It is also easy to install and space-saving.
 

Eight Combination Examples:

TD27A1 + Bracket(left), TD27A1 +Bracket(right), TD27B1 + Bracket(left), TD27B1 +Bracket(right)

TD28A1 + Bracket(left), TD28A1 +Bracket(right), TD28B1 + Bracket(left), TD28B1 +Bracket(right)

 

Click here for more details about TOK’s adjustable damper: TD27/TD28.

If you are interested in our new products or have any questions, please feel free to contact us.

TOK Newsletter

TOK will provide ONLY subscribers with valuable technical information.

The newsletter will be delivered about once per month, If you would like to receive the newsletter from us, you can subscribe via our contact form.


Our company was selected as "The Driving Company for the regional future" by the METI (Ministry of Economy, Trade and Industry) in Japan.










What is "The Driving Company for the regional future"?

"The Driving Company for the regional future" represents a company that has a strong influence on regional economies, has potential for its growth, and is an influential leader in the value chain for its regional economy or is expected to do so.

TOK will continue to work so that we may lead.

Details of "The Driving Company for the regional future":

https://www.meti.go.jp/policy/sme_chiiki/chiiki_kenin_kigyou/index.html

About METI (Ministry of Economy, Trade and Industry):

https://www.meti.go.jp/english/index.html


What do you give importance to when you manufacture products?

One of the most critical points may be that the products can be used for a long time without breakage.

Today, we would like to introduce you to "Torque limiter" and "One-way clutch," which are seldomly found components used to create high-durable products.

Please note that we have updated our website with information about these components.

Mechanism of the torque limiter

The torque limiter has the mechanism that protects an object (e.g. machine ) from overload.

For example, if an electric screwdriver (object) including a torque limiter receives an overload, then the torque limiter cuts off the input to prevent the screw from being overtightened.







→For more details about applications that use the torque limiter, please see our website!


3 Advantages of choosing TOK torque limiters

- High rotation speeds

The most significant merit to choose TOK torque limiter is rotation speeds.

You can select from 2 kinds of torque limiters: Spring type and magnet type.

Magnet type has the world's highest rotation speeds, it is suitable for high-speed rotating machinery.

Also, if you want to control larger torque, you can use a spring type limiter.







- Easy operation

If the torque exceeds the rated value, the torque limiter detects the excess and blocks the transmission of rotation by slipping, and rotation is transmitted within the rated torque. 

It works in the same way if the direction of rotation is reversed.

No special operations are required, and TOK torque limiters are easy to install.

-Comfortable for use

One of the characteristics of TOK torque limiter is less backlash.

By modifying your product with TOK torque limiter, you can provide a  stress-free product to your customers.


Mechanism of the one-way clutch

A one-way clutch has a mechanism that locks rotation in one direction and transmits the power in the opposite direction. 

It is often used for office automation equipment. One-way clutches prevent the paper from tearing when it is ejected.






→For more details about applications that use the one-way clutch, please see our website!


An advantage of TOK one-way clutches

You can purchase not only a single clutch element, but also a clutch element with a custom housing.

So which is the best way to purchase?

TOK recommends purchasing the clutch element as a set with the custom housing for the following reasons.

Normally, when customers install the clutch element into the housing themselves:

-The clutch element does not fit in the housing

-The clutch element falls out of the housing

Suppose we design the most appropriate housing for TOK one-way clutch and incorporate it into the clutch element. In that case, you do not have to worry about them.






Our product pages have been updated!

We have renewed our web pages about torque limiters and one-way clutches.

Thanks to this renewal, you can easily understand the mechanism of the torque limiters and the one-way clutches with illustrations.

If you are interested in those products, you can learn more about them on our updated torque limiter and one-way clutch pages.


If you have any questions, please feel free to contact us.


TOK Newsletter

TOK will provide ONLY subscribers with valuable technical information.

The newsletter will be delivered about once per month, If you would like to receive the newsletter from us, you can subscribe via our contact form.