Needle Bearing

Description:

This needle bearing is already encased on a shaft mount for easy installation. Needle bearings are long, thin, cylindrical roller bearings with a high radial load capacity that are most used where space is limited. The Anti-Friction Bearing Manufacturers Association collected bearings for a public relations exhibit during the early 1950s, and donated them to the museum in 1977.

Bearings were used to reduce friction for thousands of years before late 19th century industrial production techniques made their use ubiquitous. Bearings reduce friction by facilitating radial and axial movement between surfaces, allowing heavy objects to move at high speeds while saving critical parts from the wear of friction. Bearings come in a variety of shapes and sizes (such as ball, roller, or tapered) and are commonly set in an inner and outer ring (called a race) sometimes with cages (separators) spacing the bearings. Changes to the size, shape, alignment, race, and cage allow for bearings to be used in almost any industry—from automobiles and airplanes to heavy machinery and hard drives.

Location: Currently not on view

See more items in: Work and Industry: Mechanical and Civil Engineering, Bearings, Industry & Manufacturing

Exhibition:

Exhibition Location:

Credit Line: Anti-Friction Bearing Manufacturers Association

Data Source: National Museum of American History

Id Number: MC.336105.04Catalog Number: 336105.04Accession Number: 1977.0585

Object Name: bearing

Measurements: overall: 2 1/4 in x 2 1/8 in; 5.715 cm x 5.3975 cm

Guid: http://n2t.net/ark:/65665/ng49ca746a6-8021-704b-e053-15f76fa0b4fa

Record Id: nmah_846524

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