R1-4ZZS Shielded Miniature Bearing 5/64x1/4x9/64 inchBall Bearing 5 64" x 1 4" x 9 64" One Bearing High Quality R1 4ZZS the inner diameter is 5 64", outer diameter is 1 4" and the width is 9 64", this is a popular size that could be used in many applications, Bearing is made of Chrome Steel each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearing is pre lubricated with grease. Type: R1 4ZZS Deep groove ball bearings Dimensions: 5 64inch x 1 4inch x 9