6809 Nachi Bearing Open Japan 45x58x7mm
UPC : 00193019095492
Type : roulement à billes Nachi à rainure profonde
Dimensions : 45 mm x 58 mm x 7 mm/Métrique
ID (diamètre intérieur)/Alésage : 45 mm
OD (diamètre extérieur) : 58 mm
| 6809 Nachi Open Ball Roll 45 mm x 58 mm x 7 mm Fabriqué au Japon |
6809 Nachi Bearing, le diamètre intérieur du 6809 est de 45 mm, le diamètre extérieur du 6809 est de 58 mm, le 6809 de largeur est de 7 mm.
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Deep Groove ball bearings are the most popular of all the ball bearing types because they are available in a widevariety of seal, shield and snap-ring arrangements. The bearing ring grooves are circular arcs made slightly larger than the radius of the ball. The balls make pointcontact with the raceways (elliptical contact when loaded). The inner ring shoulders are of equal height (as theouter ring shoulders). Deep Groove ball bearings can sustain radial, axial, or composite loads and because of simple design, thisbearing type can be produced to provide both high-running accuracy and high-speed operation. Deep Groove ball bearings having an outside diameter less than 9 mm are known as Miniature ball bearings. Deep Groove ball bearings having an outside diameter => 9 mm and a bore diameter < 10 mm are known asExtra-small ball bearings. Standard ball retainers (cages) are made from pressed steel. Machined cages are used in bearing operating atvery high speed or for large diameter bearings. Deep groove ball bearings with seals or shields are standardized. They contain proper amount of grease inadvance.