6304ZZC4 Ball Beraing - C4 Clearance 20x52x15mm Inner Diameter - 170mm outer diameter is 40mm and

outer diameter is 40mm and the width is 16mm

the 6303NR outer diameter is 47mm

These Bearings are the same like the one used in dentists handpiece

6220LLU Sealed Ball Bearing

and machinery that runs hot - offering consistent performance where standard bearings would fail

6304ZZC4 Ball Beraing - C4 Clearance 20x52x15mm Inner Diameter - 170mm outer diameter is 40mm and6304ZZC4 Ball Bearing with C4 Clearance 20mm x 52mm x 15mm 6304ZZC4 ball bearing single row Radial with C4 Clearance20 mm ID x 52 mm OD x 15 mm wide. Brand : VXB Item Sku : 6304ZZC4 Type : Deep groove ball bearing single row Inner (ID) : 20mm Outer (OD) : 52mm Width : 15mm Inner Inch : 0. 787 Inch Outer Inch : 2. 047 Inch Width Inch : 0. 591 Inch 6304ZZC4 Dimensions : 20mm x 52mm x 15mm 6304ZZC4 Dimensions Inch: 0. 787" x 2. 047" x 0. 591" Clearance :