NJ2228ECJ Cylindrical Roller Bearing 140x250x68mm
Category: Cylindrical Roller Bearings
Specifications
Inner Diameter (ID)
140
Outer Diameter (OD)
250
Width (W)
68
Overall Size (IDxODxW)
140x250x68
Dynamic Load Rating
655 kN
Static Load Rating
830 kN
Reference Speed
2 800 rpm
Limiting Speed
4 800 rpm
Cage Material
Steel
Seal Type
None On Both Sides
Clearance
CN
Precision
Grade 0
Operating Temperature
-40 °C to +120 °C
Mass
15.3 kg
Details
Cylindrical roller bearings are essential components used in various industrial applications to support radial loads and high rotational speeds. It consists of an inner ring, an outer ring, cylindrical rollers, and a cage. The NJ Bearing Series have two fixed ribs on the outer ring and a fixed rib on the inner ring which can guide the shaft in a single direction (axially). The ECJ design have a pressed steel cage and an optimized internal design for improved performance.
SPECIFICATIONS
| Inner Diameter | 140 mm | Number of Rows | Single Row | |
| Outer Diameter | 250 mm | Cage Material | Steel | |
| Width | 68 mm | Seal Type | None On Both Sides | |
| Dynamic Load Rating | 655 kN | Clearance | CN | |
| Static Load Rating | 830 kN | Precision | Grade 0 | |
| Fatigue Load Limit | 93 kN | Min Temperature | -40 °C | |
| Reference Speed | 2 800 rpm | Max Temperature | +120 °C | |
| Limiting Speed | 4 800 rpm | Size Standard | Metric System | |
| Rolling Element | Roller | Mass | 15.3 kg |
FEATURES AND BENEFITS
-
Detachable components allow for easy maintenance and replacement.
-
Able to handle heavy radial loads, suitable for applications with significant load demands.
- Axial displacement capability minimizes wear and extends the operational life of the bearing.
Yes, miniature ball bearings are designed to handle high rotational speeds, making them ideal for devices and equipment that require rapid movement.
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