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There are Cylindrical rollers and needle rollers,You can see needle rollers are obviously thinner and longer. All
rollers are divided round end(called “NRA”)or flat end (called “NRB”)
For Material , rollers are made of chrome steel
About Application：Cylindrical rollers mainly used for cylindrical roller bearing、Linear
slide bearing and gearbox etc.
Needle roller mainly used for Needle roller bearings, linear slide bearing,
thrust needle roller bearings or tripod joints.
Then about Grade：Needle roller have Grade 2,3,5, while cylindrical rollers have different grades.
About Packing: normally dry packing, or slight oil packing with anti-rust oil in plastic bag, then into carton box and packed in wooden pallets.
