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Common terms and definitions for rolling bearings

Common terms and definitions for rolling bearings


1. Rollingbearing

A bearing that rolls between a supporting load and parts moving relative to each other. It includes parts with raceway and rolling bodies with or without isolators or guides.It can be used to bear radial, axial or combined radial and axial loads.

2. Singlerowbearing

A rolling bearing having a row of rolling bodies.

3. Doublerowbearing doublerowbearing

A rolling bearing having two rows of rolling bodies.

4. Multi-row bearing

For rolling bearings with more than two columns and bearing loads in the same direction, it is best to indicate the number of columns and the type of bearing, e.g. "four rows radial cylindrical roller bearings".

5. Full fullcomplementbearing rolling element bearing

For bearings without cage, the sum of the clearance between the circumference of each row of rolling body is smaller than the diameter of the rolling body and as small as possible, so that the bearing has good performance.

6. Angularcontactbearing angularcontactbearing

Rolling bearings with nominal contact Angle greater than 0° but less than 90°.

7. Self-aligning bearing

A raceway is a spherical bearing that can adapt to the angular deviation and angular motion between two raceway axis lines.

8. Separablebearing separablebearing

Rolling bearings with detachable parts.

9. Inseparable bearing is not separablebearing

After the final assembly, the bearing ring can not be freely separated from the rolling bearing.

Note: for bearings where parts are separated in different ways, such as ball bearings with double half rings (02, 01, 08), there is no additional abbreviation.

10. The British bearing inchbearing

Rolling bearings with original design dimensions and tolerances in English units.

11. Openbearing openbearing

Rolling bearings without dust cover and sealing ring.

12. Seal ring bearing sealedbearing

A rolling bearing with sealing rings on one or both sides.

13. Dust cover bearing shieldedbearing

Rolling bearings with dust cover on one or both sides.

14. Closed bearing cappedbearing

Rolling bearings with one or two sealing rings, one or two dustproof covers and one sealing ring and one dustproof cover.

15. Prelubricatedbearing

The manufacturer has filled rolling bearings with lubricant.

16. The instrument precision bearing instrumentprecisionbearing

Rolling bearing for instrument.

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