loading.gif
Notes
Login Sign Up Shopping Cart 简体中文
Add to my favorite categories
category Lubricants
Path Yahoo Bid > Sports & Recreation > Bicycles & Cycling > Maintenance Equipment > Lubricants
Remarks
Add my favorite keywords
Keywords
category Lubricants
Remarks
Join my favorite seller
Seller 9ezTP***
Remarks
Add to my blacklist seller
Seller 9ezTP***
Remarks
Yahoo Bid Sports & Recreation Bicycles & Cycling Maintenance Equipment Lubricants
 Store WS2 二硫化タングステン 100g 粉末 99.9% 1um 1ミクロン
 
        

  • Product Quantity
    : 1
  • Starting Bid
    :10,000円
  • Highest Bidder
    : / Rating:
  • Listing Date
    :2026年01月27日 13時18分
  • Bidding closes on
    :2026年02月03日 13時18分
  • Auction Number
    :r1205662925
  • Condition
    :New product
  • Automatic Extension
    :No
  • Authentication
    :Yes(Description)
  • Early Closing
    :No
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur
Notes
  1. Because it is difficult to ship bicycles, most sellers only allow self-pickup. Please confirm whether it can be sent and the shipping fee to avoid unpleasant shopping.
仕様
二硫化タングステン WS2 99.9%
粉末粒子 99.9% 1.0ミクロン
外観 結晶個体
比重 7.5
カラー シルバーグレー
融点1260℃
科学的耐久性 不活性物質、非毒性
磁性 非磁性
中国製、日本にて検品分包
保管方法: 湿気を吸うと凝集しやすいため、使用後は容器の蓋をしっかり閉め、冷暗所に保管してください

潤滑性:
タングステンと硫黄が六角形の網状の層を作りこの層と層が軽く滑ることで摩擦低減します。
WS2は、世界でトップクラス潤滑性の高い物質で二硫化モリブデンを超える滑り性能 

耐熱・耐荷重性:
利点は実用耐熱温度が約450℃とモリブデンより100℃も高く、摩擦係数は摩擦低減剤の中で最も低く、さらに耐荷重性能高いという非常に高性能な潤滑剤です。
金属同士の直接接触を防止します。これにより、焼き付き、かじり、摩耗を抑制
ウレアグリースや複合石けんグリースベースのグリース単体の油膜による流体潤滑・境界潤滑に、二硫化タングステンの耐荷重性能(焼き付き防止)で添加剤としては最適です。

化学的安定性: 不活性・非毒性であり、薬品への耐性も強く、腐食の心配がありません

WS2 は、スプレーなどで基材上にコーティングすることもできます。
御社オリジナルオイル作るための原材料として検討ください。

ガソリン、ディーゼルのエンジンに添加について。
【添加量について】
オイル1Lに対して、まずは約0.1%(1g)から開始してください。
※一度に大量に投入すると凝集(ダマ)の原因となります。一般使用では0.5%(5g)程度までを推奨し、特殊用途でも最大3%を超えないよう調整してください。

【使用方法と注意点】
二硫化タングステン(WS?)の粒子はオイルに完全に溶けず、沈殿しやすい性質があります。添加の際は粉末を直接エンジンに入れず、あらかじめ密閉容器にエンジンオイルと少量の本品を入れ、容器を激しく振って(シェイクして)
完全に混ざった状態、分散させた状態にしてからエンジンへ投入してください。

添加直後はすぐにエンジンをかけ、数十分程度は走行して十分に循環・撹拌させてください。
本製品の粒径(1μm)は、一般的なオイルフィルターの目(10~20μm)を通過するサイズですが、粒子が凝集(塊になる)すると目詰まりの原因になります。 一度に大量に投入せず、分散させるよう心掛けてください。

【禁止事項】
CVTやATなどのトランスミッション、および湿式クラッチを採用しているバイク等には使用しないでください。摩擦特性が変わるとスリップや故障の原因になります。
古いオイル(汚れたオイル)への添加は避けてください。スラッジ(汚れ)とWS?が結合してフィルターを詰まらせる可能性が高まります。オイル交換時のご使用を強く推奨します。

【ご注意】
添加によるトラブルに関しては責任を負いかねます。車両の状態を確認しながら、自己責任にてご使用いただけますようお願い申し上げます。
Please log in before asking questions
Question list
All replies from original sellers (total number of questions: items)
After the seller responds, the original page will display the question
Product Price JPY
Japanese Consumption Tax(10%) JPY

A 10% consumption tax is applied to goods and services in Japan. The price may include the tax or it may be added separately. Please check the price details when ordering.

Note: This is a domestic sales tax applied within Japan.

Japan Local Shipping Fee JPY Japan Local Shipping Fee Reference
Product Weight KG The maximum weight limit is 30 kg
International Shipping Methods
Singapore Package Import: Customs and Tax Policies
Proxy bidding and purchasing services are becoming increasingly convenient. However, overseas shopping carries certain risks and issues. To reduce these risks and enhance shopping safety, please be sure to read the following information:

1. International Shipping

   Air Freight: If the item status is not confirmed within two days after the arrival notice, any customer complaints cannot be addressed with the seller.

2. After Receiving the Product

Please confirm and inspect the product as soon as possible to ensure that the product specifications, quantity, accessories, and description are correct

If, unfortunately, there are any issues, you can refer to the following examples on how to report related product problems:
1. Example of missing product information
2. Example of product not matching provided information
3. Example of damaged product information

Important Notes: 1. If the seller is unwilling to ship overseas or is unaware that the product will be shipped overseas, the international shipping cost for returns or exchanges will need to be borne by the member. You may refer to the EMS e-Express fee inquiry from the post office. If it involves alcoholic beverages or items that affect flight safety, the post office cannot be used for shipment, and only DHL can be used to ship back to Japan.
2. During the product complaint handling period, please retain the complete outer packaging of the product (including the shipping label information), and refrain from attempting any repairs or altering the original condition. Any modifications may result in the inability to process the case.

3. After Inspecting the Product

After receiving and inspecting the item, if you have any questions, it is recommended to contact Letao within 2 hours. Here are some reminders:

1. Please do not unpack, use or repair the received item yourself, and be sure to keep the original packaging to facilitate subsequent handling of related matters, so as to avoid changes to the item that may cause the seller to be unwilling to process.

2. You can call customer service, and the customer service will leave a message for you as below. Please provide the following information:
"Hello, we will first help you establish a complaint case for Product ID: _______ .But we need you to 2-3 clear photos of the product issue, including photos of the product problem, product packaging, shipping details slip, and outer box. Send them to service@letao-holdings.com and inform us of your desired resolution (failing to provide this may result in an inability to process subsequent matters). After sending the email, notify us in the customer service message. We will confirm with the seller as soon as possible. and if there are any related questions, we will contact you through the customer service message. Thank you for your cooperation."

Please provide:
1. "Product ID"
2. Photo of the "Delivery Note" (if any)
3. Photos of the outer box (including inner and outer packaging)
4. Photos of the product (Please include relevant descriptions to help us confirm with the seller)

Important Notes:
1. Do not include foreign text or other products in the background of the image.
2. Please keep the complete product packaging (including the shipping label information), and refrain from repairing or altering the original condition on your own, as any changes may result in the case being unable to be processed.
3. Please provide the relevant information within 48 hours to avoid missing the golden hour for reflection and causing situations that cannot be handled.
4. Due to 99% of Japanese sellers being unwilling or unaware of shipping goods overseas, if a seller is willing to handle the issue, the goods must be sent back to Japan, and the international shipping costs incurred must be borne by the member. Letao will use postal EMS international express to send the goods back to Japan.
5. As the goods are purchased from overseas, it may take approximately one to two weeks to complete the relevant processing procedures when issues arise with the goods. Please be reminded that you can inquire about the approximate cost through the EMS service at the post office.

4. FAQ

1. Issue of Authenticity: If antique or branded goods are found to be counterfeit upon receipt, clear photos showing the differences between the genuine product and the imitation must be provided as evidence. If unable to provide relevant proof, assistance can be sought to find a third-party reputable organization for a premium authentication service .
2. Leaking Iron Teapot: If an antique iron teapot is leaking, please take clear photos of the leaking area and provide them.
3. Transport Damage: If the goods are damaged during international shipping (to the pickup point), you need to provide photos of the outer packaging of the parcel and clear photos of the damaged goods' outer packaging.

※ Note: Photos provided to sellers should not contain any foreign-related information.
You may also like
    Seller products
    Excite Translate
    Add to watchlist and notes
    Product name: WS2 二硫化タングステン 100g 粉末 99.9% 1um 1ミクロン
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao-holdings.com