R1-5ZZ Ball Bearing 3/32" x 5/16" x 9/64" - Miniature - Shielded Bicycle Hybrid Ceramic Bearing measures an inner diameter of

measures an inner diameter of 75mm

the NJ220EG outer diameter is 180mm

NU306 Cylindrical Roller Bearing and Removable Inner Ring

Shaft Diameter: 3/8" inch

Equal: 6305 RS / 6305 2RS

R1-5ZZ Ball Bearing 3/32" x 5/16" x 9/64" - Miniature - Shielded Bicycle Hybrid Ceramic Bearing measures an inner diameter ofR1 5ZZ Shielded Ball Bearing 3 32" x 5 16" x 9 64" Inch Single Bearing The R1 5ZZ is a compact deep groove ball bearing built for precision tools, RC parts, and small machinery. Featuring double metal shields to block out dust and debris, it's pre greased and ready for smooth, high speed operation right out of the package. Quantity: 1 Bearing Size: 3 32" inner x 5 16" outer x 9 64" width Material: High grade steel Type: Deep groove ball bearing