NJ 208 ECJ Single row cylindrical roller bearing, NJ design 40x 80x 18mm
Specifications and drawing for NJ 208 ECJ Single row cylindrical roller bearing:
| Model | NJ 208 ECJ | |
| Type | Single row cylindrical roller bearing | |
| d | 40 mm | Bore diameter |
| D | 80 mm | Outside diameter |
| B | 18 mm | Width |
| d1 | ≈54 mm | Shoulder diameter of inner ring |
| D1 | ≈67.4 mm | Shoulder diameter of outer ring |
| F | 49.5 mm | Raceway diameter of inner ring |
| r1,2 | min.1.1 mm | Chamfer dimension |
| r3,4 | min.1.1 mm | Chamfer dimension |
| s | max.1.4 mm | Permissible axial displacement |
| da | min.47 mm | Diameter of spacer sleeve |
| da | max.48 mm | Diameter of spacer sleeve |
| db | min.56 mm | Diameter of shaft abutment |
| Da | max.72.8 mm | Diameter of housing abutment |
| ra | max.1 mm | Radius of fillet |
| Basic dynamic load rating | C | 62 kN |
| Basic static load rating | C0 | 53 kN |
| Fatigue load limit | Pu | 6.7 kN |
| Reference speed | 9 500 r/min | |
| Limiting speed | 11 000 r/min | |
| Minimum load factor | kr | 0.15 |
| Limiting value | e | 0.2 |
| Axial load factor | Y | 0.6 |
| Mass | 0.39kg | |
Feature:
The outer ring of NJ 208 ECJ designed by Nu has two integral flanges, and the inner ring has no flange, which can adapt to the axial displacement in two directions. The detachable design facilitates installation and makes bearing components interchangeable.
Applications of NJ 208 ECJ Single row cylindrical roller bearing:
It is widely used in large and medium-sized motors, rolling stock, machine tool spindles, internal combustion engines, generators, gas turbines, reduction boxes, steel rolling mills, vibrating screens and lifting and transportation machinery.
Storehouse picture:
They are stock available for fast delivery.
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