Rolling bearings

1. Rolling bearing code The rolling bearing code is a product symbol that uses letters and numbers to represent the bearing structure, size, tolerance grade, technical performance and other characteristics. The national standard GB/T272-93 stipulates that the bearing code consists of three parts: Prefix code Basic code Postfix code

03-01

2019

Main factors affecting bearing vibration

1. The vibration system composed of stiffness, flexibility, mass, damping, etc. determined by the bearing structure design parameters will produce vibrations that are compatible with its mechanics under operating conditions 2. Vibration caused by deviations in manufacturing and processing. The smaller the deviation, the smaller the vibration. The roundness, waviness, and surface roughness of the steel ball surface are the factors that have the greatest impact on vibration among all bearing parts, followed by the shape error and surface roughness of the inner and outer ring grooves, and then the bearing cleanliness and lubricant quality. 3. Operating conditions such as installation conditions, speed, axial load direction, value, etc.

03-01

2019

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