688 bearing is a type of deep groove ball bearing, usually composed of outer ring, inner ring, steel ball and cage
The diameter of the 688 bearing is 16 mm, the inner diameter is 8 mm, and the thickness is 5 mm.
688 deep groove ball bearings are easy to install and can be easily connected to the shaft through the plug-in design.
The quality and performance of 688 bearings will vary depending on the manufacturer and material. When purchasing, you should tell the manufacturer about the usage of the bearing so that the manufacturer can give you the best bearing in terms of price and quality!
