Linear Ball Bearing - Square Flange EPKC08G 8mm Center Mount, Double Wide Open Linear Plain Bearing it is encased in a

it is encased in a crowned-OD cylindrical green-anodized aluminum shell that allows the bearing to pivot slightly within its housing to accommodate angular misalignment between parallel shafts

20mm OD and 25mm length with a closed lightweight aluminum alloy shell

The crowned anodized aluminum shell has a slightly curved outside diameter that lets the bearing seat at a corrective angle inside a compatible pillow block

Nut Type: Triangle Anti-Backlash Nut

Steel Shell - Double Size with a round flange in the center

Linear Ball Bearing - Square Flange EPKC08G 8mm Center Mount, Double Wide Open Linear Plain Bearing it is encased in aSquare Flanged Linear Ball Bearing with an 8mm ID, center mount and double wide design for higher cantilevered load capacity. The heat treated alloy steel shell ensures durability, while the resin retainer polymer cage minimizes noise and the low coefficient of friction enhances speed. Temperature Range: 4 +176F ( 20 +80C) Center Flange Mount and Double Size to handle more cantilevered loads Variant ID Sizes: From 1 4" to 2 Inch Series & 8mm to 50mm