-
Welcome to Auto Parts Forum
Whether you are a veteran automotive parts guru or just someone looking for some quick auto parts advice, register today and start a new topic in our forum. Registration is free and you can even sign up with social network platforms such as Facebook, X, and LinkedIn.
Failure mode analysis of automobile water pump bearings
-
Similar Topics
-
By austinbearing
Hello, everyone.We are an auto bearing manufacturer from China.
We produce Peugeot, Renault, Fiat and some other aut bearings.
Contact me if you're interested.
WhatsApp: +8613775640157
E-mail: [email protected]
-
By 袁春凤 (Tiffany)
The phenomenon that two objects move relative to each other to produce motion resistance between their contact surfaces is called friction, which is called friction. The existence of friction not only increases the power consumption, but also causes the wear of parts' contact surfaces. Therefore, lubricating oil is usually used between the relative moving surfaces of automobile parts to reduce friction. Failure of automotive parts 75% is caused by friction.
Friction can be divided into dry friction, liquid friction, boundary friction and mixed friction according to the lubrication state of the parts.
(1) dry friction
The friction between the frictional surfaces without any lubricating medium is called dry friction.
When the parts are in the state of dry friction, the surface of the parts is abraded sharply, so the surface of the moving parts of the automobile should avoid the occurrence of dry friction as far as possible.
Dry friction and boundary friction are the main friction between the upper part of cylinder wall and piston ring. Dry friction will occur when the journal and bearing are subjected to impact load in the working process.
(2) liquid friction
Two the friction of the friction surface when the lubricant is completely separated is called liquid friction.
In liquid friction, the two friction surfaces are completely separated by a layer of lubricating oil film with a thickness of 1.5-2.0um, which avoids direct contact between the working surfaces of the two parts. Friction only occurs between the lubricating fluid molecules, so the friction resistance is very small, and the wear of the parts is very slight.
Most of the relative motion parts of a car are carried out under the condition of liquid friction (for example, crankshaft and bearing).
(3) boundary friction
Two friction surface separated by a very thin boundary film is called boundary friction.
The oil film thickness is usually below 0.1um. Friction only occurs between the outer molecules of the boundary film, reducing the friction and wear of the parts. But its thickness is very small, and it is easy to be destroyed by impact and high temperature, so it is not as reliable as liquid friction.
For example: between cylinder wall and piston ring; if the work crankshaft and journal between the insufficient supply of lubricant, easy to produce boundary friction.
(4) Mixed friction
The friction between two friction surfaces in the presence of dry friction, liquid friction and boundary friction is called mixed friction.
In the actual working state, the parts usually work under the mixed friction state, and the friction state varies with the working conditions.
-
By 1772668470
Installing a power steering pump involves several steps. It’s important to have the correct tools and follow safety precautions. Here’s a step-by-step guide to help you through the process:
Tools and Materials Needed:
New power steering pump
Power steering fluid
Wrench set
Screwdrivers
Pulley puller (if necessary)
Jack and jack stands
Drain pan
Safety glasses and gloves
Torque wrench
Steps to Install a Power Steering Pump:
-
By 1772668470
Hello every one, this is power steering pump factory in china.We have 17 years of manufacturing experience with high quality and competitive price, if you have interest ,pls feel free to contact us. call whats app:+86 18006521672 email:[email protected]
-
By Counterman
link hidden, please login to view NTN, the parent company of BCA Bearings, is proud to announce the launch of BCA’s 2024 Endless Summer promotion. During the promotion, BCA’s warehouse distributor customers can earn BCA-branded, premium merchandise with orders of BCA wheel hub assemblies, bearings and seals.
“We are thrilled to announce the BCA Endless Summer promotion” said Patrick Cronin, Marketing Manager, Automotive Aftermarket. “The Endless Summer theme evokes a relaxed and carefree feeling that we all strive to achieve; the same carefree feeling we want associated with using our premium parts. We are looking forward to summer and another great promotion.”
BCA’s Endless Summer promotion enables distributor customers to earn tiered packages of BCA branded merchandise with qualifying orders, which they can then use to conduct their own localized promotions. This allows the BCA-branded merchandise to reach every level of the distribution channel, from the parts professionals and service advisors who recommend BCA products to the technicians that install them.
The Endless Summer theme is meant to embody the warm summer feeling you wish would never end, and the promo items were selected to complement the theme and keep summer going long after Labor Day has come and gone. A floating stress relief keychain, waterproof phone pouch and backpack keep your valuables high and dry during a day at the beach. A misting water bottle and insulated picnic basket keep you and your snacks cool as the classic triangle kite drifts above in the summer breeze. Get out of the sun with the pop up shelter as you relax on the beach lounge pad, and then fire up the mini tabletop fire pit to roast marshmallows for smores. Now you’re living the Endless Summer with BCA.
BCA’s 2024 Endless Summer promotion runs from May 1 through June 30, 2024. For participation details, please contact a BCA Sales Representative or Customer Relations Advocate.
The post
link hidden, please login to view appeared first on link hidden, please login to view.
link hidden, please login to view
-
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.