SRW3ZZ Shielded Bearing Extended Inner 3/16" x 1/2" x 0.196 inch Miniature Outer Diameter - 166mm this is a popular size

this is a popular size that could be used in any application that uses this size 40mm

locks in reverse

6805 Full Ceramic zirconium oxide Ball Bearing

or any gear that demands smooth rolling and corrosion resistance

SMA4GW NB Double Wide Block Slide Unit

SRW3ZZ Shielded Bearing Extended Inner 3/16" x 1/2" x 0.196 inch Miniature Outer Diameter - 166mm this is a popular sizeSRW3ZZ Shielded Ball Bearing Extended Inner 3 16" x 1 2" x 0. 196" inch Miniature SRW3ZZ Shielded Ball Bearing. This is commonly used in industrial, commercial, and mechanical systems, measures an inner diameter of 3 16", outer diameter is 1 2" and the width is 0. 196". Each Comes with double metal shields (ZZ) to keep out dust and dirt. Pre lubricated with grease for enhanced performance. SRW3ZZ Extended Inner Ball Bearing Shields: 2 Metal Shields