| Bearing number | R4ZZ |
| Bore Diameter (mm) | 6,35 |
| Outer Diameter (mm) | 15,875 |
| Width (mm) | 4,9784 |
| Bearing Type | Shielded |
| Bore Dia (d) | 0.2500 |
| Outer Dia (D) | 0.6250 |
| Width (B) | 0.1960 |
| Radius (min) (rs) | 0.002 |
| Dynamic Load Rating (Cr) | 333 |
| Static Load Rating (Cor) | 131 |
| Max Speed (Grease) (X1000 RPM) | 38 |
| Max Speed (Oil) (X1000 RPM) | 45 |
| Max. Shaft Shoulder Dia. Inner (Ui) | 0.3 |
| Min. Housing Shoulder Dia., Outer (Uo) | 0.534 |
| Ball Qty | 8 |
| Ball Dia (Dw) | 0.0937 |
| Weight (g) | 4.54 |
| Precision | A1 |
| Standard Clearance | K25 |
| Material | 52100 Chrome steel (or equivalent) |
