We introduce you to the MRC 61921 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 MRC 61921, please contact us:
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| MRC 61921 Bearing Details： |
| Bearing Name | 61921 |
| New Model | 61921 |
| Old Model | 1000921 bearing |
| product Model | 61921 |
| Category | Deep Groove Ball Bearings |
| Brand | MRC Bearing |
| Inner Diameter d ( mm ) | 105 |
| Outer Diameter D ( mm ) | 145 |
| Thickness B ( mm ) | 20 |
|
| MRC 61921 Bearing Bearing Size and Drawing： |
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MRC 61921 Bearing With size alternative model
| Model | Inner Diameter
d(mm) | Outer Diameter
D(mm) | thickness
B(mm) | Brand | Type |
| NTN 61921-RS Bearing | 105 | 145 | 20 | NTN | Deep Groove Ball Bearings |
| TBS 71921C Bearing | 105 | 145 | 20 | TBS | Angular Contact Ball Bearings |
| TBS 71921 AC Bearing | 105 | 145 | 20 | TBS | Angular Contact Ball Bearings |
| FAG B71921AC-2RZ/HQ1 Bearing | 105 | 145 | 20 | FAG | Angular Contact Ball Bearings |
| KOYO 6921 RU Bearing | 105 | 145 | 20 | KOYO | Deep Groove Ball Bearings |
| MRC 71921 C Bearing | 105 | 145 | 20 | MRC | Angular Contact Ball Bearings |
| NTN 61921-2RS Bearing | 105 | 145 | 20 | NTN | Deep Groove Ball Bearings |
| NTN 61921N Bearing | 105 | 145 | 20 | NTN | Deep Groove Ball Bearings |
| MRC 71921C Bearing | 105 | 145 | 20 | MRC | Angular Contact Ball Bearings |
| KOYO 6921RU Bearing | 105 | 145 | 20 | KOYO | Deep Groove Ball Bearings |
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What are the advantages of the Deep Groove Ball Bearings design?
The inner and outer raceways are deep grooves, with point contact between the steel balls and the raceways, resulting in low friction and low heat generation. The structure is simple and compact, capable of withstanding combined radial and bidirectional axial loads, with high limiting speeds, low noise, and some compensation capability for installation angle deviations, facilitating high-precision mass production.
What are the advantages of Deep Groove Ball Bearings compared to similar products?
Compared to angular contact ball bearings, they can withstand bidirectional axial forces and do not require pairing; compared to cylindrical roller bearings, they can withstand axial loads and have higher speeds; compared to thrust ball bearings, they can simultaneously withstand radial forces. They offer balanced overall performance, achieving the optimal balance in cost, speed, load capacity, and ease of installation, making them the most versatile.
What are the applications and classic applications of Deep Groove Ball Bearings?
They are widely used in motors, automotive alternators and gearboxes, household appliances (washing machines, vacuum cleaners), water pumps, and precision transmission equipment. Classic applications include rotor supports for small and medium-sized motors, automotive alternators, air conditioning compressors, and roller-type moving parts, making them the most common type of bearing in rotating machinery.
