The Fretting Wear Of Needle Roller Bearings Is Related To Those Factors

What is needle roller bearing
Needle roller bearings are roller bearings with cylindrical roller, relative to its diameter, the roller is thin and long.This type of roller is called a needle roller.Despite having a small section, the bearing still has a high load bearing capacity.
Classification of needle roller bearings
Open type stamped outer ring needle roller bearings, closed stamped outer ring needle roller bearings, needle roller bearings with inner ring and without inner ring needle roller bearings/needle roller bearings without inner ring and cage, full needle roller bearings with and without cage.
The role of needle roller bearings
Needle roller bearings are equipped with thin and long rollers, so the radial structure is compact, the inside diameter size and load capacity are the same as other types of bearings, the outer diameter is the smallest, especially suitable for the radial installation size of the limited supporting structure.
Needle roller bearings according to the use of different occasions, processing accuracy and surface quality should be combined with bearing ring, purpose.

The Fretting Wear Of Needle Roller Bearings Is Related To Those Factors
In the transmission, the role of needle roller bearings is to support the traveling gears on the shaft.Among them, the outer diameter of the shaft is equivalent to the inner raceway of the needle roller bearing, the inner hole of the gear is equivalent to the outer raceway of the needle roller bearing, the inner and outer raceway and the needle roller and cage together constitute a complete needle roller bearing.
1. Fretting wear is a molecular wear process, that is, two contact surfaces carry out small displacement reciprocating motion under vertical load, so that the contact surface is close enough to the extent that the van der Waal force works, resulting in the material leaving the parent body and then being oxidized.
2. Fretting wear is a molecular wear process in which two contact surfaces reciprocate with small displacement under vertical loads so that the contact surfaces are close enough to the extent that van der Waal forces act, resulting in the material being separated from the parent body and then oxidized.
3. Fretting wear is one of the common failure modes of needle roller bearing. Through the analysis of the fretting wear mechanism of needle roller bearing, the main influencing factors of fretting wear are found out.
Based on the analysis of the principle of the influence factors of fretting wear, several preventive measures to avoid fretting wear are put forward from the aspect of design.
The price of needle bearing
The price of needle bearing is affected by many factors such as market, material and quotation. If you want to know the specific price of needle bearing， please contact us to make enquiries.
Supplier of needle bearing:BMB Bearings
BMB Bearings is the complete one-stop supplier of OEMs and wholesalers purchasing high-precision, miniature ball bearings, industrial ball bearing related products, as well as related professional services, including world-class engineering and design. If you have any need, please feel free to contact us .