After offering we heard many times voice of “Your price is too high” or “Our current price is 50% lower than yours ” …
You have explained to customer that how good quality your product is, showed your testing reports with thousands times, because you know clearly the difference between products of different price level.

How do you prove it?

Yes, taken inspection for these different products is a good method . TBB did so.
However, the testing of basic data such as size, clearance, precision, vibrate. Sometimes there have very big different on measurement, but sometimes there do not have very obvious different on data.

What is the deep reason for big price gap?

To end the confusion, TBB did further testing- Life Reliability Comparison Test at National Bearing Testing & Inspection Institute.
A group of 4 piece of deep groove ball bearings, after rigorous and reasonable experimental process:

Firstly, can you guess how the bearings performed ?

Here comes some pictures to show how it performance.

Secondly, can you guess how many hours the bearings lasting?

Here comes the testing results.

#1 bearing from TBB OEM product, it lasting for 121.5 hours till the testing ended with good condition.
#2 bearing from world well-known second-class brand, it lasting for 121.5 hours till the testing ended with good condition.
# 3 bearing from TBB general market product, it lasting for 121.5 hours till the testing ended with good condition.
# 4 bearing from 80%- lower price products , it lasting only for 63.5 hours failed the testing with outer ring fatigue, steel ball fatigue and cage break.