R1-5ZZ Ball Bearing 3/32" x 5/16" x 9/64" - Miniature - Shielded Bicycle Hybrid Ceramic Bearing the NJ220EG outer diameter is

the NJ220EG outer diameter is 180mm

the NU316EG inner diameter is 80mm

Cage is made from Torlon for lowest fricion

Shaft Diameter: 3/8" inch

R1-5ZZ Ball Bearing 3/32" x 5/16" x 9/64" - Miniature - Shielded Bicycle Hybrid Ceramic Bearing the NJ220EG outer diameter isR1 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