211SF Shielded 55x100x21 Ball Bearing Inner Diameter - 9mm each bearing comes shielded to

each bearing comes shielded to keep out debris and pre-lubricated for low-friction use on the water

HCR207-23 Bearing Insert

SMS10GUU bearing is a high accuracy grade Miniature linear bushings

Ball Bearings 8x14x4

SMSF50GUU Round Flange Anticorrosion Linear Slide Bush

211SF Shielded 55x100x21 Ball Bearing Inner Diameter - 9mm each bearing comes shielded to211 SF Bearing Shielded Ball Bearing 55mm x 100mm x 21mm 211SF Shielded Ball Bearing,bearing is made from Chrome Steel, each bearing has Metal Shields to protect the bearing from dust or any possible contamination,211SF is self lubricated bearing (bearing is already greased). 211SF Ball Bearing Deep Groove Ball Bearing Shield Double Metal Shields for dust protection (ZZ) Size: 55mm x 100mm x 21mm Bearing Inner Diameter: 55mm Bearing Outer Diameter: