Q: What is the difference between a roller and a ball bearing?
Both ball bearings and roller bearings are rolling bearings with the characteristics of rolling bearings.
Ball bearings are often used in low-load mechanical transmission equipment. Because the bearing area of the ball bearing is small, serious mechanical damage is easy to occur under high-speed operation. Therefore, needle roller bearings are often used to increase the bearing surface in heavy-load mechanical transmission, which improves the mechanical transmission efficiency and reduces Mechanical damage.
Roller bearings can achieve good accuracy and rigidity through preload. In addition, a tapered inner ring can be used to adjust the working clearance of the bearing at will. This kind of solution can completely realize the requirement of zero clearance of the cylinder bearing of the printing press.
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