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NU 228 ECM
BWK
BWK-NU-228-ECM
NU 228 ECM is a cylindrical roller bearing with 140 mm bore, 250 mm outside diameter and 42 mm width. The NU arrangement provides radial support while allowing axial displacement between the shaft and housing within the bearing. It is suitable for a non-locating support position.
| Model | NU 228 ECM |
| Product Type | Cylindrical Roller Bearing |
| Structure | Single-row NU cylindrical roller bearing |
| System of Measurement | Metric |
| Roller Bearing Type | Cylindrical |
| Seal Type | Open |
| Inner Ring Type | With Inner Ring |
| For Load Direction | Radial |
| Construction | Single Row |
| Bore Dia | 140 mm |
| Bore Dia Tolerance | -0.025mm to 0 |
| Outer Dia | 250 mm |
| Outer Dia Tolerance | -0.03mm to 0 |
| Width | 42 mm |
| Width Tolerance | -0.25mm to 0 |
| Shoulder Dia Of Outer Ring | 215.78 mm |
| Permissible Axial Displacement(max.) | 2.5 mm |
| Raceway Diameter Of Inner Ring | 169 mm |
| Chamfer Dimension r1,2(min.) | 3 mm |
| Chamfer Dimension r3,4(min.) | 3 mm |
| Ring Material | Chrome Steel |
| Roller Material | Chrome Steel |
| Cage Material | Brass cage, roller centred |
| Dynamic Radial Load | 101250 lbf |
| Static Radial Load | 114750 lbf |
| Max Speed (X1000 rpm) | 3 |
| Temperature Range | -30° to 110 °C |
| Lubrication | Grease, Oil |
| Weight | 9.41 kg |
Industrial motors, gearboxes and machinery shafts requiring radial support and thermal expansion allowance.
Provide axial location with another bearing. Check cage material, permissible displacement, shaft fits and lubrication against operating conditions.
BWK provides reliable bearing solutions for industrial and agricultural applications, supported by stable supply, strict quality control and flexible OEM & ODM services.
