Bearing 81210 NTN 81210 NTN bearing Size Chart (mm/inches) |
|---|
| Bearing number | ASTT90 F25070 |
| Bore Diameter (mm) | 250 |
| Outer Diameter (mm) | 255 |
| Bearing Type | flanged |
| Shaft Dia., Nominal (d) | 250.0000 |
| Shaft Size (ds) - 250 -0.170 / -0.216 | 250 0.170 / 0.216 |
| Housing Bore Dia. (Dh) - 255 +0.052 / -0 | 255 +0.052 / 0 |
| Bearing Outside Diameter, Nominal(Do) | 255.000 |
| Bearing Bore after Mounting (di) - 255 +0.115 / -0 | 255 +0.115 / 0 |
| Wall Thickness (S3) | 2.500 |
| Bearing Length, Nominal (B) | 70.000 |
| 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 |
| Flange Dia. (Dfl pm 0.5) | 290.000 |
| Flange Thickness (Sfl) | 2.500 |
| Flange Radius (rfl) | 2.000 |
| Material | Wrapped bronze with lubrication holes. |