M257149D/M257110+A NTN Cylindrical Roller Bearing
100% China Kobelco Hydraulic Final Drive Motor Supplier Authentic. M257149D/M257110+A NTN Cylindrical Roller Bearing Highest Quality. Certified Carbon steel shell w Material Supplier.
| Brand Name: | NTN |
| Model Number: | M257149D/M257110+A |
| Material: | Carbon steel shell w |
| Shaft Dia., Nominal (d): | 70.0000 |
| Bearing Outside Diameter, Nominal(Do): | 75.000 |
| Bearing Bore after Mounting (di): | 70.200 / 70.080 |
| Outer Diameter (mm): | 75 |
| Bearing Length Tolerance (B tol.) - +0 / -0.40: | +0 / 0.40 |
| OD Chamfer Length (Co): | 1.800 |
| Bearing Outside Diameter Tolerance (Do tol.): | 75.100 / 75.055 |
| PDF |
M257149D/M257110+A |
Product Details
| Material | Carbon steel shell w |
| Shaft Dia., Nominal (d) | 70.0000 |
| Bearing Outside Diameter, Nominal(Do) | 75.000 |
| Bearing Bore after Mounting (di) | 70.200 / 70.080 |
| Outer Diameter (mm) | 75 |
| Bearing Length Tolerance (B tol.) - +0 / -0.40 | +0 / 0.40 |
| OD Chamfer Length (Co) | 1.800 |
| Bearing Outside Diameter Tolerance (Do tol.) | 75.100 / 75.055 |
| Lube Hole Dia. (dl) | 8.000 |
| Shaft Size (ds) - 70 +0 / -0.046 | 70 +0 / 0.046 |
| Average Clearance (Cd) | 0.1630 |
| Bearing Length, Nominal (B) | 50.000 |
| Wall Thickness (S3) | 2.438 |
| Bearing number | AST20 7050 |
| ID Chamfer Length (Ci) | 0.800 |
| Bore Diameter (mm) | 70 |
| ID Chamfer Angle (B deg.) | 45 |
| Housing Bore Dia. (Dh) - 75 +0.030 / -0 | 75 +0.030 / 0 |
| Bearing Type | straight |
