| Bearing number | AST40 4530 |
| Bore Diameter (mm) | 45 |
| Outer Diameter (mm) | 50 |
| Bearing Type | straight |
| Shaft Dia., Nominal (d) | 45.0000 |
| Shaft Size (ds) - 45 -0.025 / -0.050 | 45 0.025 / 0.050 |
| Housing Bore Dia. (Dh) | 50 +0.025 / +0 |
| Bearing Outside Diameter, Nominal(Do) | 50.000 |
| Bearing Outside Diameter Tolerance (Do tol.) | 50.085 / 50.045 |
| Bearing Bore after Mounting (di) | 45.105 / 44.99 |
| Average Clearance (Cd) | 0.0850 |
| Wall Thickness (S3) | 2.505 |
| Bearing Length, Nominal (B) | 30.000 |
| Bearing Length Tolerance (B tol.) - +0 / -0.40 | +0 / 0.40 |
| OD Chamfer Length (Co) | 1.800 |
| ID Chamfer Angle (B deg.) | 45 |
| ID Chamfer Length (Ci) | 0.600 |
| Material | Steel shell with PTFE / Polymer Fiber lining |
