Thrust Needle Roller Bearings
In applications where the faces of adjacent machine components can serve as raceways, needle roller thrust bearings take up no more space than a conventional thrust washer
Needle bearings are usually lubricated with grease, but oil or oil-mist lubrication is preferred for heavy-duty or high-speed applications.
Chrome Steel Rollers
A needle roller bearing is a bearing that uses small cylindrical rollers. These rollers are used to reduce friction of a rotating surface.
Can be combined with washers, make objects rotating smooth!
Can serve as raceways between the faces of adjacent machine components.
Can be used as inner or outer raceways