Comparison of ball bearings and roller bearings

Comparison of ball bearings and roller bearings

From the point of view of the contact with the raceway: Ball bearings are in point contact, and the contact surface is ellipsoid; while roller bearings are in line contact, and when force is applied, the contact surface is square.

From the point of view of the characteristics: because the ball bearing is point contact, the resistance is small, and the ball bearing is suitable for the application conditions of low torque and high speed. They also have low noise characteristics; because roller bearings are in line contact, the torque of roller bearings is higher than that of ball bearings, and the rigidity is also higher.

From load capacity: ball bearings have low load capacity but can withstand radial and axial loads; roller bearings have higher load capacity. Cylindrical roller bearings have ribs to withstand slight axial loads. Double row tapered roller bearings can bear radial and axial loads.

IKO Thompson Bearings Japan Thompson Co., Ltd. IKO is a professional bearing manufacturer with a history of more than 50 years, specializing in the production of needle roller bearings and linear guides. It enjoys a high reputation all over the world and is the history of needle roller bearings produced in Japan. The oldest manufacturer with the most complete variety and the highest level of specialization; the four-row cylindrical roller heavy-duty guide created by IKO Kafa is world-renowned. Its products are widely used in machine tools and other industries.