DIN ISO 21250-4:2023-09
Rolling bearings - Noise testing of rolling bearing greases - Part 4: Test and evaluation method NQ (ISO 21250-4:2020)
| Fecha edición: |
2023-09-01
En Vigor
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| Idiomas disponibles: | Inglés, Alemán |
| Resumen: | This document was prepared by Technical Committee ISO/TC 4, Rolling Bearings. This document covers requirements for the testing assembly and the test machine of method NQ to determine and assess the noise characteristics of rolling bearing grease jointly with ISO 21250-1, ISO 21250-2 and ISO 21250-3. This document specifies the testing and evaluation method of rolling bearing grease noise in accordance with the method NQ. |
| Keywords: | Bearings|Cylindrical bearings|Damping|Definitions|Double-row bearings|Grease|Grease lubrication|Lubrication|Lubrication engineering|Material testing machines|Noise|Noise (environmental)|Noise measurement|Noise origin|Noise test|Rolling bearings|Spindle speed|Spindles|Testing|Testing set-ups|Tolerances (measurement) |
| ICS: | 21.100.20 - Rodamientos |
| CTN: | |
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Equivalencia Internacional |
Idéntica ISO 21250-4:2020 |
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Reemplazo Normas |
Reemplaza a DIN ISO 21250-4:2022-12 |










