Bearing Accessories

‌Bearing accessories belong to the mechanical parts industry‌. Bearings are an important mechanical accessory, widely used in industry, automobiles, aviation, aerospace and other fields, and are an indispensable basic component in mechanical equipment.

Types of bearing accessories

‌Outer ring (outer ring): used for contact and support with external parts.

‌Inner ring (inner ring): installed on the shaft, used to fit closely with the shaft.

‌Rolling element‌: including balls, rollers or rollers, which play the role of supporting and transmitting loads.

‌Retainer (retaining ring): maintain the position of rolling elements and ensure good lubrication.

‌Sealing device‌: prevent the entry of dust, contaminants and grease, and protect the internal parts of the bearing.

Classification and standards of bearing accessories

Deep groove ball bearings‌ (code "6"), mainly used to bear radial loads.

‌Double row deep groove ball bearings‌ (code "4"), suitable for bearing larger radial loads.

‌Self-aligning ball bearings‌ (code "2" or "1"), suitable for bearing larger radial loads, and have a certain self-aligning ability.

‌Spherical roller bearings‌ (codes "21", "22", "23", "24") are suitable for bearing heavy loads and impact loads. ‌

Cylindrical roller bearings‌ (code "N") are suitable for bearing large radial loads and certain axial loads. ‌

Angular contact ball bearings‌ (code "7") are suitable for high-speed rotation and bearing large axial loads. ‌

Tapered roller bearings‌ (code "3") are suitable for bearing large radial and axial loads. ‌Thrust ball bearings‌ (codes "51", "52", "53") are suitable for bearing large axial loads. ‌

Thrust short cylindrical roller bearings‌ (code "81") and ‌Thrust spherical roller bearings‌ (code "29") are suitable for bearing large axial loads.