Bearings

Bearings

Bearings are machine elements with the special property of restricting movement between moving parts to only the intended motion or direction.

Industry: Machine tools

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Bearings

This is the same as gyration. When it is expressed in inches alone or accompanied by the abbreviation TIR (total indicator reading), it refers to twice the radial distance between the shaft axis and ...

runout of assembled bearing

Machine tools; Bearings

Displacement of surface of bearing relative to fixed point when one raceway is rotated with respect to other raceway.

scalloping

Machine tools; Bearings

Uneven localized wear resulting from excessive endplay.

scuffing

Machine tools; Bearings

Abnormal wear due to localized welding and fracture. It can be prevented through the use of anti-wear, extreme-pressure and friction-modifier additives.

seal

Machine tools; Bearings

A soft synthetic rubber washer with a steel core fixed in the outer ring (in the seal groove) in contact with the inner ring to retain lubricant and keep out contamination.

self aligning ball bearing

Machine tools; Bearings

Spherical outside diameter ball bearing which can accommodate initial angular misalignment between the outer ring and its mating spherical aligning ring or housing seat.