SMR3121.5 Ceramic Bearing 21.5mm Metric Sealed ABEC-5 Bearings

SMR3121.5 Premium ABEC-5 Stainless Steel Ball Bearing, bearing is Silicon Nitride ceramic ball.

• Item: SMR3121.5 Ball Bearing
• Quality: Premium ABEC-5
• Closures: Open
• Material: Stainless Steel
• Balls: Silicon Nitride Ceramic (Si3N4)
• Dimensions: 21.5mm x 31mm x 7mm/Metric
• ID (inner diameter)/Bore: 21.5mm
• OD (outer diameter): 31mm
• Width/Height/thickness: 7mm
• Dimensions: 21.5 x 31 x 7 mm
• Quantity: One Bearing