6921LLU 105x145x20 Sealed Ball Bearing Inner Diameter - 135mm each bearing has 2 rubber

each bearing has 2 rubber seals to protect the bearing from dust or any possible contamination

SM80UU-P Type Seals on Both Sides: Slide Bush

Load rating Cr: 15800 N

inner diameter is 3/4" inch

6921LLU 105x145x20 Sealed Ball Bearing Inner Diameter - 135mm each bearing has 2 rubber6921LLU Sealed Ball Bearing 105mm x 145mm x 20mm 6921LLU sealed Ball Bearing, Each bearing has 2 Sealed to protect the bearing from dust or any possible contamination, plus its pre lubricated with grease so its ready to roll right away. 6921LLU Ball Bearing Deep Groove Ball Bearing Dynamic load rating Cr: 32,800 N Static load rating Cor: 31,600 N Limiting Speed: Grease Lubrication: 5,000 RPM Dimensions: 105mm x 145mm x 20mm Bearing Inner Diameter: