Скачать или смотреть What are conventions in bearings? Roller-element Bearings | Journal Bearings

Welcome back MechanicaLEi, did you know that I.S. or international Standard conventions in bearings help denote complex bearing structures using simple 2D drawings? This makes us wonder, What are conventions in bearings?
Before we jump in check out the previous part of this series to learn about what bearings are? Now, There are three main representations of roller-element bearings. First is the representation of Ball bearings. Balls in the rolling elements are represented by the use of circle between the races. Second is the roller bearings. Here, rollers are shown as square elements between the races. Third, are needle bearings which are denoted by rectangles between the races. Shown here are the two types of variations in needle bearings one along the radial direction and other along the axial direction. Journal bearings consist of many representations due to their wide variety of types from simple dry bearings which consist of just a shaft in a hole to hydrodynamic bearings which consist of a fluid pump that circulates the lubricant between the hole and shaft. One common representation is that consisting of an oil hole in the top and depicts the shaft as a solid cylinder and the hole with a hashed cross-section. Hence, we saw what I.S. conventional representation is, first in roller-element bearings and then in journal bearings?
In the next episode of MechanicaLEi find out What Pedestal and Footstep Bearings are?


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