Technical Parameters
Dimensions
| d | 200 mm | Bore diameter |
|---|---|---|
| D | 420 mm | Outside diameter |
| B | 80 mm | Width |
| D1 | ≈352.4 mm | Shoulder diameter of outer ring |
| F | 258 mm | Raceway diameter of inner ring |
| r1,2 | min.5 mm | Chamfer dimension |
| r3,4 | min.5 mm | Chamfer dimension |
| s | max.6 mm | Permissible axial displacement |
Abutment dimensions
| da | min.220 mm | Diameter of spacer sleeve |
|---|---|---|
| da | max.253 mm | Diameter of spacer sleeve |
| db | min.262 mm | Diameter of shaft abutment |
| Da | max.399.8 mm | Diameter of housing abutment |
| ra | max.4 mm | Radius of fillet |
| rb | max.4 mm | Radius of fillet |
Calculation data
| Basic dynamic load rating | C | 1 230 kN |
|---|---|---|
| Basic static load rating | C0 | 1 630 kN |
| Fatigue load limit | Pu | 150 kN |
| Reference speed | 1 400 r/min | |
| Limiting speed | 2 800 r/min | |
| Minimum load factor | kr | 0.23 |
| Limiting value | e | 0.2 |
| Calculation factor | Y | 0.6 |
Tolerances and clearances
General bearing specifications
Tolerances: Normal (metric), P6, Normal (inch)
Radial internal clearance: cylindrical bore, tapered bore
Axial internal clearance: NUP, NJ + HJ
Bearing interfaces
Seat tolerances for standard conditions
Tolerances and resultant fit
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Products Description
Single row cylindrical roller bearings are designed to accommodate high radial loads in combination with high speeds. Having two integral flanges on the outer ring and no flanges on the inner ring, NU design bearings can accommodate axial displacement in both directions. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.
High radial load carrying capacity
Low friction
Long service life
Accommodate axial displacement in both directions
Separable design
