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| KOYO NJ 2204 R Bearing Details： |
| Bearing Name | NJ 2204 R |
| New Model | NJ2204R |
| Old Model | 42504E bearing |
| product Model | NJ2204R |
| Category | Cylindrical Roller Bearings |
| Brand | KOYO Bearing |
| Inner Diameter d ( mm ) | 20 |
| Outer Diameter D ( mm ) | 47 |
| Thickness B ( mm ) | 18 |
|
| KOYO NJ 2204 R Bearing Bearing Size and Drawing： |
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KOYO NJ 2204 R Bearing With size alternative model
| Model | Inner Diameter
d(mm) | Outer Diameter
D(mm) | thickness
B(mm) | Brand | Type |
| NACHI NUP2204E Bearing | 20 | 47 | 18 | NACHI | Cylindrical Roller Bearings |
| NACHI 32204 Bearing | 20 | 47 | 18 | NACHI | Tapered Roller Bearings |
| KOYO NJ2204E Bearing | 20 | 47 | 18 | KOYO | Cylindrical Roller Bearings |
| ZKL NJ 2204 Bearing | 20 | 47 | 18 | ZKL | Cylindrical Roller Bearings |
| FAG NJ2204E+HJ2204E Bearing | 20 | 47 | 18 | FAG | Cylindrical Roller Bearings |
| KOYO NU 2204 R Bearing | 20 | 47 | 18 | KOYO | Cylindrical Roller Bearings |
| FAG 2204 Bearing | 20 | 47 | 18 | FAG | Self-aligning Ball Bearings |
| STEYR NUP 2204 E Bearing | 20 | 47 | 18 | STEYR | Cylindrical Roller Bearings |
| FAG 2204.2RS.TV Bearing | 20 | 47 | 18 | FAG | Self-aligning Ball Bearings |
| RIV NJ2204 Bearing | 20 | 47 | 18 | RIV | Cylindrical Roller Bearings |
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What are the structural components and design advantages of cylindrical roller bearings?
Cylindrical roller bearings consist of an inner ring, an outer ring, cylindrical rollers, and a cage (some models have full complement rollers or no inner or outer rings). The rollers and raceways are designed for line contact, offering advantages such as extremely high radial load capacity, good rigidity, low coefficient of friction, high limiting speed, and the ability to allow a certain degree of axial displacement of the shaft relative to the housing bore.
What are the advantages of cylindrical roller bearings compared to other similar bearings?
Compared to deep groove ball bearings, cylindrical roller bearings have significantly higher radial load capacity, making them more suitable for heavy-duty applications. Compared to tapered roller bearings, they have higher limiting speeds, lower frictional heat generation, and simplify system design when not subjected to axial loads. Compared to needle roller bearings, they offer superior rigidity and shock resistance, making them suitable for applications requiring higher stability.
What are the applicable occasions and typical applications of cylindrical roller bearings?
These bearings are suitable for heavy-duty, high-speed machinery requiring rigid support. Typical applications include large motors, machine tool spindles, gearboxes, rolling mills, industrial pumps, papermaking machinery, and mining crushing equipment.
