Define the difference

A rolling bearing refers to a bearing whose rolling elements perform rolling motion on a raceway; while a sliding bearing refers to a bearing that operates under the action of sliding friction.

Differences in bearing categories

BOWER's rolling bearings can be classified according to two major criteria: structural type and size. In terms of structural type, it can be divided into ball bearings and roller bearings according to the different rolling elements. It can be divided into aligning bearings and non-aligning bearings according to whether it has an aligning function. It can be divided into separable bearings and non-aligning bearings according to whether the parts are separable. Release bearings; in terms of size, they can be divided into miniature bearings, small bearings, small and medium-sized bearings, large bearings, etc.

Sliding bearings are also classified in various ways. First, according to the different lubricant states, they can be divided into semi-solid lubricated bearings and liquid oil lubricated bearings. Second, according to the different load bearing directions, they can be divided into thrust sliding bearings and radial sliding bearings. kind.

Differences in bearing functional characteristics

The characteristics of rolling bearings include: low friction coefficient and small friction torque when starting; relatively simple installation and disassembly, easy to lubricate; for the same size journal, its width is smaller, which can make the axial size of the mechanical equipment more compact.

The characteristics of sliding bearings include: longer service life than rolling bearings; strong anti-vibration performance and load-bearing capacity; simple structure; but its disadvantages are greater friction, more bearing wear, and poor accuracy maintenance.

Differences in usage scenarios

Generally speaking, BOWER rolling bearings with low friction and low heat generation are more suitable for high-speed rotation situations.

For BOWER sliding bearings, because they can withstand larger loads, they are suitable for occasions with larger loads, compact structure and smaller radial dimensions.

Rolling bearings and sliding bearings each have their own advantages, and the specific selection should be considered based on factors such as working conditions.