The guy explaining the difference between the ostensibly interchangeable parts has a simple test. Drop 'em down a rod, and give 'em a good hard flick with his thumb.
This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. Through consolidation, agglomeration and migration from Europe and Japan, only a few very large players now dominate the U.S. and world market.
While the rest of the world had gone through a massive consolidation process, it wasn’t until the mid-1980s that China’s policy towards privately owned enterprise changed. Government run research and test facilities spread around China to help producers make quality product.
For comparison, in the early 1990s the product I was selling from China was good for luggage wheels, roller skates, and low speed conveyors, but by the late 1990s, electric motor quality bearings were available for medium speed applications like power tools, vacuum cleaner motors, and other consumer products. In my earlier years, I was not surprised to visit factories that had dirt floors and conditions that would give an OSHA inspector a heart attack.
In recent years, I have visited state-of-the-art manufacturing facilities with real time data collection of ground raceway dimensions automatically fed into a computer with instantly updated manufacturing statistics of every single piece that is ground. Some factories have become fully automated, without a single person touching the finished parts.
China on the other hand is dominated by thousands of bearing producers, all ranging in their capabilities. When I explain this to my clients, my favorite example is a statement made by my international trade attorney: “99% of lawyers give the rest of us a bad name.” Which, unfortunately, is also a great statement when replacing the word ‘lawyers’ with ‘Chinese bearing companies.’ There are world-class producers in China, but the key is finding them.
They assume everyone wants the least expensive product available, and so they start out cheap and when the parts do not pass they expect another chance. Having spent almost 4 months of my life on a plane, and 3 years of compiled time living in China devoting my life to this industry, my recommendations have afforded me a career worth of knowledge that cannot be confined to this article.
Evaluate the dollar potential to see if Chinese bearing companies might be interested, and determine your expectations for savings. My original business model, which currently includes two full time offices in Shanghai and Beijing, was to help small to medium size companies save money in China.
I believed smaller companies who could not afford the expense of opening offices in China would find benefit from our offered services. Contrary to my original belief, I have spent the majority of my career servicing the needs of Fortune 500 companies who had teams of representatives in China on countless occasions and still came up empty-handed.
The companies that have succeeded in finding reliable Chinese partners more often than not saved millions of dollars. And if you still don’t believe in Chinese bearings, just remember, unless you haven’t traveled in the last 5 years, you have likely flown on an airplane, ridden in a car, truck, or train with Chinese bearings supporting the most critical components of that vehicle.
Close General and technical details, for the most popular materials used in engineering our bearings. Close Choosing the appropriate seal or shield is a main factor in how long a bearing will last.
Zen offers a wide range of options including metal, Teflon and rubber. Close A complete guidance to prevent mistakes which could reduce the bearings' performance capacity.
Stainless Steel Bearings for Food Industry .pdf download Need some new pivot bearings for my nuke proof mega as it’s eaten another set.
Posted 4 years ago got some “Enduro” bearings 3 months ago, pivot bearings for my super light, crumbled last week on me up Ginsburg, don’t know what the “Enduro” stands for?? Posted 4 years ago’ve been using them for years for a lot of different things from hubs to frames to random projects without problems but there has been whispers and rumors that China has been churning out fakes and sub quality seconds one bay and other sites.
Haven’t tried anything else myself, but I put a set in the pivots of my mate’s rocky mountain, and they seemed to do OK I usually buy from Kate, it feels like repaying Kansas for services rendered via mental STW threads.
Posted 4 years ago fit loads of ’em at work. Posted 4 years ago use there max bearings in my Enduro pivots, and they have been fine.
Posted 4 years ago bought some last month to overhaul a rear hub. I installed them with a proper bearing press and the correct size drift.
Posted 4 years agonist bearings in most bikes need Max, or otherwise known as full compliment, beatings. Good quality Max bearings will last ages in an NP Mega, mine were over 2 years old before I changed them and I only changed them ‘cos I thought I should before another season of mud and Alps.
Stainless Steel Inserts (SSB) with FDA approved Grease How would you compare the quality/durability of name brand metric ball bearings such as SKY, Fafnir, NON, etc.
With the same equivalent sizes/part numbers in Chinese made metric ball bearings. The raw forgings come out of china and then are finish machined here in the US, and they are considered top quality engine components for racing.
I think if it has a recognizable name brand its probably OK, those people have the resources and incentive to validate the claimed B10 life on their bearings and surely benchmark themselves against their competitors. MRC would be a little suspect in my book, I've seen their bearings die quite a bit sooner than I would have expected.
We have cold formers making millions of parts per year and as a test we put several manufacturers ball bearings in transfer housings on 4 machines. Ended up redesigning the gears to use Tim ken tapered roller bearings instead and have yet to have a failure.
At a small fraction of the cost of the top quality product they certainly are value for money where the application will suit. I would be slow to use them in the middle of an expensive machine. In today's world of global manufacturing plants you are never sure where any bearing is made and a lot of badge engineering goes on.
Those were on National 750-5 & 6 dies running 125 & 90 ppm with modified universal transfers. The corners were never ground and had square edges on the bore and OD. Talk about worse than crap. They were.
Give it a few years, Chinese bearings will be too radioactive to import The major players, INA/FAG, SKY and Tim ken all manufacture in China and have top-notch quality control, so those bearings should be the same quality as those made here and in Europe.
It would also be a good idea to buy from a reputable supplier since there area lot of counterfeit bearings coming out of Asia. FAG and SKY just confiscated 40 tons of bearings from a German distributor.
The problem with Chinese bearings are the quality of the steel, tolerances and just plain poor workmanship. A high purity steel is vital for long life in a bearing and the Chinese steel mills cannot supply enough to the major players, so it is unlikely the Chinese brands are using anything of much quality.
The surface finish also has a very large impact, and they fall short there too. If these are being used in something that will see little use, then you might be OK with the Chinese bearings, but if your companies reputation is on the line, or the failure would cause expensive repairs, then I don't think it would be worth taking the chance.
I bought some bearings a while back, and they were from Turkey...... Name brand, too, I forget who. I believe what happened to your buddy was really not good, But all suppliers does not supply this kind of crap and if something happened like that they would have insured it that is something goes wrong you can claim, and you can have the same shipment back or your money.
How would you compare the quality/durability of name brand metric ball bearings such as SKY, Fafnir, NON, etc. With the same equivalent sizes/part numbers in Chinese made metric ball bearings.
The raw forgings come out of china and then are finish machined here in the US, and they are considered top quality engine components for racing. I find them very consistent, seals are good, and I could not tell the difference between those and SKY.
I bought some bearings a while back, and they were from Turkey...... Name brand, too, I forget who. I put Turkish bearings in a grinder spindle and no complaints at all.
The problem with Chinese bearings are the quality of the steel, tolerances and just plain poor workmanship. Steel quality (inclusions) is probably the biggest difference and thus lifetime.
Even brand name manufacturers have improved the steel quality by heaps in the last 30 years or so. Steel quality (inclusions) is probably the biggest difference and thus lifetime.
Even brand name manufacturers have improved the steel quality by heaps in the last 30 years or so. Some would say steels are cleaners, some would say the “chemistry” has changed, and they don't take punishment as well.