We introduce you to the NTN 30211 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 NTN 30211, please contact us:
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| NTN 30211 Bearing Details： |
| Bearing Name | 30211 |
| New Model | 30211 |
| Old Model | 7211E bearing |
| product Model | 30211 |
| Category | Tapered Roller Bearings |
| Brand | NTN Bearing |
| Inner Diameter d ( mm ) | 55 |
| Outer Diameter D ( mm ) | 100 |
| Thickness B ( mm ) | 21 |
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| NTN 30211 Bearing Bearing Size and Drawing： |
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NTN 30211 Bearing With size alternative model
| Model | Inner Diameter
d(mm) | Outer Diameter
D(mm) | thickness
B(mm) | Brand | Type |
| STEYR NUP 211 E Bearing | 55 | 100 | 21 | STEYR | Cylindrical Roller Bearings |
| TBS 7211BEGAP* Bearing | 55 | 100 | 21 | TBS | Angular Contact Ball Bearings |
| RHP 6211-Z Bearing | 55 | 100 | 21 | RHP | Deep Groove Ball Bearings |
| KOYO 7211 C Bearing | 55 | 100 | 21 | KOYO | Angular Contact Ball Bearings |
| TORRINGTON 6211-2Z Bearing | 55 | 100 | 21 | TORRINGTON | Deep Groove Ball Bearings |
| NSK NSKBL211Z Bearing | 55 | 100 | 21 | NSK | Deep Groove Ball Bearings |
| NSK QJ211 Bearing | 55 | 100 | 21 | NSK | Thrust Ball Bearings |
| TBS QJ 211 N2 MA Bearing | 55 | 100 | 21 | TBS | Angular Contact Ball Bearings |
| FAG 7211AC Bearing | 55 | 100 | 21 | FAG | Angular Contact Ball Bearings |
| KOYO 6211-RZ Bearing | 55 | 100 | 21 | KOYO | Deep Groove Ball Bearings |
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What are the structural components and design advantages of tapered roller bearings?
Tapered roller bearings consist of an inner ring, an outer ring, tapered rollers, and a cage. The rollers and raceways have a tapered design, with the extensions of all the tapered surfaces converging on the bearing axis. They offer advantages such as the ability to simultaneously withstand radial and unidirectional axial loads, high load capacity, good rigidity, adjustable clearance, and are typically used in pairs.
What are the advantages of tapered roller bearings compared to other similar bearings?
Compared to cylindrical roller bearings, tapered roller bearings can withstand larger axial loads and have a higher load capacity. Compared to angular contact ball bearings, their radial and axial load capacities are significantly higher, making them more suitable for heavy-duty impact conditions. Compared to thrust bearings, they can simultaneously withstand combined radial and axial loads, have a more compact structure, and do not require additional radial bearings.
What are the applicable occasions and typical applications of tapered roller bearings?
These bearings are suitable for heavy-duty, impact-prone mechanical applications requiring precise positioning and adjustable clearance. Typical applications include automotive wheel hubs, gearboxes, rolling mill roll necks, machine tool spindles, engineering machinery drive axles, railway vehicle axles, and mining crushing equipment.
