Please know the hero analysis, detailed analysis, thank you!
The friction between the two is huge. So is the contact with the cage.Also, the roller bearings, rolling in the running, but also with the ring block contact, it will also increase friction.The resistance of the roller bearing lubricant is greater than that of the ball bearing lubricant.
In theory, the contact between the ball bearing, the roll and the ferrule is point contact. Roller bearing roller and ferrule contact is line contact.
The same size of roller bearings and ball bearings, rolling body volume, roller volume than the size of the ball, in the same speed, roller centrifugal force is greater, the friction will be greater.
