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Bearings for Car Gearbox Bearings for Car Air Conditioning Compressor
There’s always a chance that things break. Same with bearings., but it doesn’t mean that we can’t prevent those issues beforehand to avoid further troubles. The below chart will show you how bearing failure comes and what we can do to prevent it ahead of time to make your application much stronger. With the above knowledge, you don’t have to wait for the symptoms of a bearing failure before you take actions, which can help save your time and money. We TBB Bearing Provision is always here happy to provide you with assistance and support upon your request.
● What is 8D Problem Solving? When a claim exists and the customer issues you a corrective action, what should you do? No doubt, you should follow the 8D (Eight Disciplines) problem-solving methodology system that is designed to find the root cause of a problem, devise a short-term fix and implement a long-term solution to prevent recurring problems. When it’s clear that your product is defective or isn’t satisfying your customers, an 8D is an excellent first step to improving Quality and Reliability. The strength of the 8D process lies in its structure, discipline, and methodology. 8D uses a composite methodology, utilizing best practices from various existing approaches. It is a problem-solving method that drives systemic change, improving an entire process in order to avoid not only the problem at hand but also other issues that may stem from systemic failure. 8D has grown to be one of the most popular problem-solving methodologies used for Manufacturing, Assembly, and Services around the globe. ● Why apply 8D Problem Solving? After notification of a problem, your customer expects you to take the appropriate steps in a timely manner to resolve that problem. The quicker you address the issue, the more satisfied your customer. A thorough 8D…
TBB Case of Needle Roller Needle Roller Bearing Used in JAC Gearbox MF70B Heavy Duty Cam Followers – Stud Type Track Rollers Comments from TBB Customer
Crankshaft, an essencial mechnical part, plays a great role in engine of motorcycle.Motorcycle crankshaft is made of several seperate pieces, today we only focus on the failure analysis of needle roller bearings used in crankshaft. Cause of crankshaft damage Generally it is because the oil’s not replaced in time. There are bearings in crankshafts. The bearing will wear seriously without oil or with poor lubrictaion, a gap may occur, the crankshaft will shake, and the engine will produce abnormal noise FIVE reasons cause bearing failure in crankshaft 1. Pitting Reason: defects on metal surface, particle contamination, or lubricating oil contaminated with metal particlesAfter the bearing pitting occurs, strong vibration, noise and heat usually happen when operation 2. Fatigue peeling off It is caused by excessive impact loads, such as rough road condition or overloads After several impacts for some time, the sheet-like fatigue spalling occurs at the indentation. In that case there may follow noise, vibration and additional torque, which will seriously affect the running stability and accuracy of the bearing Influence factors: Material smelting quality Heat treatment status Surface processing accuracy Surface residual stress Lubricating oil, plastic deformation of contact surface 3. Wearing failure Extrusion of external hard particles or microscopic…
There are many bearings used in various active parts of a motorcycle (such as the direction column, the front and rear wheels, the rear chain plate, the rear gearbox, etc.). Bearings produced by regular manufacturers are generally tested as qualified products at the factory, but it is also important to install them correctly. During the usage of motorcycle, if the bearing ball cage falls off, the working surface in the rolling groove will be unconventional wearing, peeling off, and the rotation will be stuck. Few of the problems are caused by the bearing quality itself, most part of them are caused during the installation. We will analysis the most common problems one by one as below, hope that we can draw the attention of the manufaturers, the maintenance industry and the owners of motorcycles and avoid unnecessary losses. 1. Bearings on the front and rear hubs and the rear chain plate During the daily usage of the motorcycle, riding in deep water or washing the motorcycle often may make the water running into it, which causes the grease in the bearing invalidated gradually, the rolling groove and the ball in the bearing are seriously worn, and the clearance is obviously increased….
Riding a bicycle is a common excercise way in our nowaday life. But how much do you know about one of the most important parts in a bicycle–BEARING? Please allow me to show you here. Which parts are bearings used in a bicycle? Bearings are used in bicycles mainly to reduce friction. Normally you can find bearings used in the following parts: 1. The front and rear hubs of the wheels 2. The bottom bracket(BB) where an axle connects the two pedal cranks together 3. The pedals 4. The freewheel where bearings help provide one-direction feature 5. The head parts, normally we used angular contact bearing Here we send you part of our most widely used bearing items in bicycle application: TBB Bicycle Bearing Advantages 1. Low noise 2. Low vibration 3. Low friction 4. High precision (ABEC-1/3/5/7 or P0/P6/P5/P4) 5. Great sealing performance 6. Good rotation performance 7. Long-life Analysis of Different Bearing Materials The bearing materials used in bicycle mainly includes: 1. Chrome Steel (GCr15/100C6) 2. Stainless Steel (SS440C/SS420C) 3. Hybrid Ceramic 4. Full…
Case No. 1 TBB optimized products can work under higher load rating with longer lifetime. Case No. 2 Case No. 3 Bearing Durability Test Comparison — Needle Roller Bearing HK1010Application: Automotive automatic gearboxTest purpose and method: Bearings run a test continuously under constant radial load. The durability test component level test were run on both TBB and INA, the test results:1, Total test time is about 2870hours and 3.42 times to the L10 lifetime requirement2, No abnormal failure phenomenon was found3, No cracks, spalling or pitting were found on the outer surfaces4, No damage on the components. Both TBB and INA bearings passed the durability test.
● Significance & Application of CQI-9 HTSA The North American automotive association AIAG (Automotive Industry Action Group) is the publisher of the CQI standards (Continuous Quality Improvement). CQI-9 Heat Treatment System Assessment is a self-assessment of the heat treatment system and must be carried out at least once a year.This standard is an appendix to ISO TS 16949 (IATF 16949) under ?customer-specific requirements“ and is valid for all automotive suppliers globally that have entered into a contractual agreement regarding purchasing, supply and quality throughout the supply chain. CQI standards are used in several typical situations as below: Customer’s request, as a supplement of product standardsApplicable to the whole auto Customer’s request, as a supplement of product standards Applicable to the whole automotive industry Assessment of manufacturer to comply with automotive industry standards Applicable to all?heat treatment enterprises ● Structure, Content and Elements of the CQI-9 Questionnaire ● Process Tables of the CQI-9 HTSA More about CQI – Continuous Quality Improvement? More about CQI-9HTSA?
1. TBB Busy April 2. TBB Handcraft Lesson Look, except bearing, we also had many fun times in office! On the second week, TBB members enjoyed very interesting handcraft lessons at office. The handmade Husky card-bag was so cute! The purse also looked great! Maybe the new year gift of 2020 you get would be our handmade something. 3. TBB Take Action on Earth Day ● Lessen Paper User Try using email, PDF’s, electronic documents, CD-ROM’s, USB drives, tablets, and projectors instead of printing out paper. ● Walking, Biking or Carpooling to Work One hand it helps reducing carbon emissions by walking, biking or carpooling, the other hand, exercise put everyone in a great mood for work; carpooling brings together employees from different departments within the company. ● Lunch Activities Advocate TBB member bring lunch food from home, reduce the times of take-out food, thereby reducing the use of disposable tableware. Also it provided good opportunity to change habits and to educate employees. ● Remember to Turn Off Turn off the lights at day time, and turn off the office appliance when left, such as computer, printing machine, hot water fountain. ● Collect Recyclables Papers, plastic bottles, metal, glasses, put…