6208ZZ Deep Groove Ball Bearings Z2 40mm X 80mm X 18mm Double Shielded For Household Appliances real pictures as below:

6208ZZ steel shields single row deep groove ball bearings inner bore 40mm, outer diameter 80mm, width 18mm, it made of chrome steel material, widely use for rolling systems, furniture, sliding door window,  tools, machines.... this list 6207RS bearing of the tolerance grade is ABEC-1, P0 precision, lubed with grease.

6208ZZ Deep Groove Ball Bearings Z2 40mm X 80mm X 18mm Double Shielded For Household Appliances

6208ZZ (I.D.=40mm, O.D.=80mm, Thickness=18mm)

6208-2Z bearings are shielded on BOTH SIDES to keep lubricant in

Made from Chrome Steel, durability and resistance to under heavy loads

ABEC Tolerance 1 (P0), Z2 Noise Level for most general use

6208ZZ commonly used in various applications, including electric motors, automotive industry,

industrial machinery, and household appliances.

6200 series single row deep Groove Ball Bearings offer multiple options that serve a wide range of applications. The 'groove' is the depth of the raceway into which the balls fit, they typically consist of an Inner Ring, Outer Ring, Balls and Cage. Variants are available with Steel Shields, Rubber Seals (Contact/Non-Contact type), Snap-ring Grooves with Snap-rings, and a variety of Cage types. 

These Bearings are designed for radial, axial, and also composite load applications, purpose of deep groove precision ball bearings is to reduce rotational friction and support radial and axial loads.Deep Groove Ball Bearings offer:

·Uni or bi-directional load carrying capability

·Very high-speed rotation

·Very good running accuracy

·Low noise and low friction torque