6001-2NSE Nachi Bearing 12x28x8 Sealed C3 Japan Linear Motion Systems - 5/8 inch (0.625") the N306EG inner diameter is

the N306EG inner diameter is 30mm

Parameter Value Inner Diameter (d) 30mm Outer Diameter (D) 62mm Width (W) 21mm Torque 110 N·m

RNA4908 Needle Roller Bearing Without Inner Ring

9/16" inch Inner Diameter

6001-2NSE Nachi Bearing 12x28x8 Sealed C3 Japan Linear Motion Systems - 5/8 inch (0.625") the N306EG inner diameter is6001 2NSE Nachi Ball Bearing Made in Japan 12mm x 28mm x 8mm Double Rubber Sealed C3 Clearance One Bearing The 6001 2NSE is a high quality deep groove ball bearing from Nachi, engineered for smooth, quiet, and durable performance. Featuring double rubber seals, C3 clearance, and premium grease, it's ideal for electric motors, tools, and precision machinery. Inner diameter: 12mm Outer diameter: 28mm Width: 8mm Type: Nachi deep groove ball bearing