Bearings,as important components in contemporary mechanical equipment,mainly support the mechanical rotating body,which can reduce the friction coefficient during its movement and ensure its rotation accuracy.
4148014 bearings are used in the Excavator Final drive system of Hitachi :
4148014 BRG.;ROL. Hitachi parts EX60, EX60G, EX60SR, EX60UR, EX75UR, EX75UR-3
MR148ZZ Miniature Shielded Bearing 8mm x 14mm x 4mm, the inner diameter is 8mm, outer diameter is 14mm and the width is 4mm, Bearing is made of Chrome Steel, each bearing has 2 Metal Sheilds to protect the bearing from dust or any possible contamination, also bearing is pre-lubricated with grease.
6207ZZ (35x72x17mm) is a single-row bearing that supports radial loads, made with Chromium Steel providing superior quality and durability. It comes pre-lubricated and shielded to keep the lubricant in and contaminants, dirt and debris out.
6006-2RS (I.D.=30mm, O.D.=55mm, Thickness=13mm); 6006-2RS bearing are shielded on BOTH SIDES to keep lubricant in; Chromium Steel long-life bearings, smooth and low noise.