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Description
RNA4912-XL INATechnische Basisdaten Hersteller: INA Synonym: 0506664440000 RNA4912 Bezugsdrehzahl: 3. 850 1 min Gewicht: 272 Gramm Grenzdrehzahl: 6. 700 1 min Herstellungsland: Slowakei Innendurchmesser: 68 mm Lubrikation: Umfangsnut Schmiernut vorhanden(en) Zolltarifnummer: 8482 4000 Erweiterte technische Daten ueres Breitenmae: mm 85,00 Begrenzungsdrehzahl (n G) "6700. 0000" Begrenzungsdrehzahl fr SchmierstoffLubrikation: (n G Fett) "4000. 0000" ueres
Technische Basisdaten
| Hersteller: INA |
| Synonym: 0506664440000 RNA4912 |
| Bezugsdrehzahl: 3.850 1/min |
| Gewicht: 272 Gramm |
| Grenzdrehzahl: 6.700 1/min |
| Herstellungsland: Slowakei |
| Innendurchmesser: 68 mm |
| Lubrikation: Umfangsnut Schmiernut vorhanden(en) |
| Zolltarifnummer: 8482 4000 |
Erweiterte technische Daten
| Äußeres Breitenmaße: mm 85,00 |
| Begrenzungsdrehzahl (n G) "6700.0000" |
| Begrenzungsdrehzahl für SchmierstoffLubrikation: (n G Fett) "4000.0000" |
| Äußeres Breitenmaße:(B) mm 25,00 |
| Äußeres Breitenmaße:(b) mm 25,00 |
| Durchmesser Unterrollen (F w) mm 68,00 |
| ECLASS number 23-05-09-07 |
| ECLASS2 number 23-05-09-07 |
| Einzelgewicht in (kg): 0.275 |
| Innenmaße: mm 68,00 |
| Radial Dynamic Load Rating Cr (N) 68000 |
| Radial Static Load Rating C0r (N) 108000 |
| Referenzdrehzahl (n ϑr) "3850.0000" |
| XL X-Life |
| Betriebstemperatur max.: 120 °C |
| Betriebstemperatur min.: -30 °C |
| C 0r 108.000 N Statische Tragzahl, radial |
| C r 68.000 N Dynamische Tragzahl, radial |
| C ur 19.100 N Ermüdungsgrenzbelastung, radial |
| Dynamische Tragzahl, radial: 68.000 N |
| Ermüdungsgrenzbelastung, radial: 19.100 N |
| F w 68 mm Hüllkreis Innenmaße: |
| Hüllkreis innen: 68 mm |
| Minimaler Kantenabstand: 1 mm |
| Statische Tragzahl, radial: 108.000 N |
| T max 120 °C Betriebstemperatur max. |
| T min -30 °C Betriebstemperatur min. |
| n G 6.700 1/min Grenzdrehzahl |
| n ϑr 3.850 1/min Bezugsdrehzahl |
| r min 1 mm Minimaler Kantenabstand |
| ≈m 0,272 kg Einzelgewicht |
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4.5 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Very Useful
Format: Paperback
I used these for my A+ exams and I didn’t really end up reading the material. I more so used them for their practice exams. That’s only because there’s a lot of information to digest and I was in a rush to take the exams. I still passed so I find that they are well formatted. The questions imo needs to be read more throughly than the exam questions themselves.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2024
★★★★★ 5
Amazing study tool
Format: Paperback
Perfect for the exam goes along with the actual course 👌
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2025
★★★★★ 5
Details I mok
Format: Paperback
I like the explanations, but I don’t like small print, particularly for older people
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2023
★★★★★ 1
31 pages were missing from the test book
31 pages were missing from the test book
Pages 453 to 484 were missing (see attached photo)
It’s very hard to prepare for a comprehensive certification examination studying from an incomplete text. FYI, the book was purchased new and not damaged, it was bound that way
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2023
★★★★★ 3
Kindle version does not come with tests/flashcards
I did not know this beforehand. They hid this fact waaaay down below and added it in below the details and neglected to add it to the main description at the top. Be advised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2022
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