5203 2ZR Shielded 17x40x17.5 Angular Contact Bearing Inner Diameter - 1 25/32 inch (1.78125") the 6814 inner diameter is

the 6814 inner diameter is 70mm

Dimensions: 4 1/2" x 5 1/8" x 5/16" Inch

SMR52ZZ Stainless Steel Premium ABEC-5 Ball Bearing

4 x 8 x 3 Full Ceramic Ball Bearing

5203 2ZR Shielded 17x40x17.5 Angular Contact Bearing Inner Diameter - 1 25/32 inch (1.78125") the 6814 inner diameter is5203 2ZR Angular Contact Shielded Ball Bearing One Bearing 5203 2ZR Double row Angular Contact Ball Bearing, each bearing has 2 Metal Shields to protect the bearing from dust or any possible contamination, this is self lubricated bearing (bearing is already greased), bearing is made from Chrome Steel. 5203 2ZR Bearing Double Row Angular Contact Ball Bearing Dynamic load rating Cr: 15,000 N Static load rating Cor: 9,250 N Limiting Speed: Grease