Amazon.com: Deep ball bearing, 10 pieces Radial and axial load No deformation Rubber sealed bearing Medium speed for linear movement 6304 Rubber Seal : תעשייה ומדע
Deep Ball Bearings, Moderate Speed No Deformation Radial and axial Load Rubber Sealed Bearing for 6304 Rubber Seal: Amazon.com: Industrial & Scientific
Amazon.com: 10 PCS R4-ZZ(1/4 x 5/8 x 10/51 inch) Premium Double Metal Shielded Radial Ball Bearing - Deep Groove Bearing - High Speed - Compatible for Electric Motor Applications : Everything Else