NE: Snap Ring Groove at the outer ring (In Bearings with a single seal/Shield, the groove is closer to the side without the seal/sheild)
C3: Radial Internal Clearance large than normal (according to DIN 620, ISO 5753)

Specification
Weight: 0.46 LBS 0.21 Kg
Inside Dimension 40.000 MM
Outside Dimension 68.001 MM
Width Outer Race 15.001 MM
Width Inner Race 0.00 MM
Dynamic Rating 6,498.853 N
Static Rating 0.00 N
Outer Corner Radius 1.016 MM
Inner Corner Radius 1.016 MM
Finish
Note I