We introduce you to the TBS RNA 4868 models bearing the relevant parameters, including the model, size, drawings and other models of the same size, if you have any do not understand or want to learn more parameters or would like to inquire about TBS RNA 4868, please contact us:
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| TBS RNA 4868 Bearing Details： |
| Bearing Name | RNA 4868 |
| New Model | RNA4868 |
| Old Model | 4644868 bearing |
| product Model | RNA4868 |
| Category | Needle Roller Bearing |
| Brand | TBS Bearing |
| Inner Diameter d ( mm ) | 340 |
| Outer Diameter D ( mm ) | 420 |
| Thickness B ( mm ) | 80 |
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| TBS RNA 4868 Bearing Bearing Size and Drawing： |
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TBS RNA 4868 Bearing With size alternative model
| Model | Inner Diameter
d(mm) | Outer Diameter
D(mm) | thickness
B(mm) | Brand | Type |
| FAG RNA 4868 Bearing | 340 | 420 | 80 | FAG | Needle Roller Bearing |
| NTN NA4868 Bearing | 340 | 420 | 80 | NTN | Needle Roller Bearing |
| INA SL 01 4868 Bearing | 340 | 420 | 80 | INA | Cylindrical Roller Bearings |
| TBS NNU4868/W33 Bearing | 340 | 420 | 80 | TBS | Cylindrical Roller Bearings |
| INA SL 02 4868 Bearing | 340 | 420 | 80 | INA | Cylindrical Roller Bearings |
| INA SL014868 Bearing | 340 | 420 | 80 | INA | Cylindrical Roller Bearings |
| INA NA 4868 Bearing | 340 | 420 | 80 | INA | Needle Roller Bearing |
| TBS NNCL4868CV Bearing | 340 | 420 | 80 | TBS | Cylindrical Roller Bearings |
| TBS NNU4868K/W33 Bearing | 340 | 420 | 80 | TBS | Cylindrical Roller Bearings |
| TBS NNC 4868 CV Bearing | 340 | 420 | 80 | TBS | Cylindrical Roller Bearings |
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What are the structural components and design advantages of needle roller bearings?
Needle roller bearings consist of slender needle rollers, a cage, and rings (or ringless bearings) typically with a thin-walled design. The needle rollers and raceways have a line contact design, offering advantages such as extremely small radial cross-section, high load capacity, good rigidity, and a low coefficient of friction. They are suitable for compact structures with limited radial space and the need to withstand high loads.
What are the advantages of needle roller bearings compared to other similar bearings?
Compared to cylindrical roller bearings, needle roller bearings have a significantly smaller radial cross-section, making them more suitable for space-constrained compact designs. Compared to deep groove ball bearings, they have a higher radial load capacity and offer greater shaft diameter design flexibility for the same outer diameter. Compared to sliding bearings, they have lower starting friction, higher running accuracy, and require no complex lubrication system.
What are the application scenarios and typical applications of needle roller bearings?
These bearings are suitable for mechanical applications with limited radial space, high load capacity, and compact structure requirements. Typical applications include automotive transmissions, engine connecting rods, universal joints, textile machinery, industrial robot joints, motorcycle engines, and aviation hydraulic pumps.
