10pcs 6804-2RS (20x32x7mm) Bicycle Ceramic Si3N4 Rubber Sealed Bearing Bearings
Balls: Si3N4 Silicon Nitride ceramic balls. Bearing size: 20mm(ID) x 32mm(OD) x 7mm(W). Type: Deep groove ball bearing.
Balls: Si3N4 Silicon Nitride ceramic balls. Bearing size: 20mm(ID) x 32mm(OD) x 7mm(W). Type: Deep groove ball bearing.