In their basic form, ball bearings are comprised of an inner race, outer race and spherical balls. Ball bearings carry a point load, unlike roller elements that carry a line load. A reduced contact surface area lowers friction effects and allows a ball bearing to operate at high speeds. However, a small contact area limits the load that the bearing is able to withstand. Deep groove ball bearings may be used if greater carrying capacity is required. Ball bearings can accommodate loading in both the axial and radial directions. Thrust ball bearings are designed to support loads acting in the axial direction while mast guide bearings utilize thick outer rings to support large radial loads. Rubber, felt, and steel seals are used in harsh environments to keep lubricants contained while baring dirt from entering the bearing. Multiple rows of balls may be configured to resist axial displacement. If desired, ball bearings may be heat resistant, created out of polymer materials, or unground. Unground ball bearings offer a cheap alternative to precision bearings, but result in shorter service life. Ball bearings are commonly used in agriculture, construction, conveyor systems, fans, and paper making machines.

• Angular Contact
• Cartridge
• Deep Groove
• Double Row
• Felt Seal
• Insert
• Mast Guide
• Self Aligning
• Steel Ball
• Thrust
• Unground