6304ZZC4 Ball Beraing - C4 Clearance 20x52x15mm Inner Diameter - 170mm 5203 bearing is made from

5203 bearing is made from Chrome Steel

the 6303NR outer diameter is 47mm

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

Dimensions (inches) a e i g l s Z Bi n m 4-19/32" 3-5/8" 3/4" 19/32" 1-11/32" 35/64" 1-3/4" 1-11/16" 11/16" 1"

6304ZZC4 Ball Beraing - C4 Clearance 20x52x15mm Inner Diameter - 170mm 5203 bearing is made from6304ZZC4 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 :