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Description
nk65 25 inaTechnische Basisdaten Hersteller: INA Synonym: NB657825 NK65 25 TV XL RNA657825 TAF657825 Auendurchmesser: 78 mm Bezugsdrehzahl: 4. 500 1 min Gewicht: 221 Gramm Grenzdrehzahl: 7. 200 1 min Herstellungsland: Slowakei Lubrikation: Umfangsnut Schmiernut vorhanden(en) Zolltarifnummer: 8482 4000 Erweiterte technische Daten ueres Breitenmae: mm 78,00 ueres Breitenmae:(B) mm 25,00 Einzelgewicht in (kg): 0. 221 Innenmae: mm 65,00 Betriebstemperatur max.: 120
Technische Basisdaten
| Hersteller: INA |
| Synonym: NB657825 NK65/25-TV-XL RNA657825 TAF657825 |
| Außendurchmesser: 78 mm |
| Bezugsdrehzahl: 4.500 1/min |
| Gewicht: 221 Gramm |
| Grenzdrehzahl: 7.200 1/min |
| Herstellungsland: Slowakei |
| Lubrikation: Umfangsnut Schmiernut vorhanden(en) |
| Zolltarifnummer: 8482 4000 |
Erweiterte technische Daten
| Äußeres Breitenmaße: mm 78,00 |
| Äußeres Breitenmaße:(B) mm 25,00 |
| Einzelgewicht in (kg): 0.221 |
| Innenmaße: mm 65,00 |
| Betriebstemperatur max.: 120 °C |
| Betriebstemperatur min.: -30 °C |
| C 0r 98.000 N Statische Tragzahl, radial |
| C r 50.000 N Dynamische Tragzahl, radial |
| C ur 17.000 N Ermüdungsgrenzbelastung, radial |
| D 78 mm Außendurchmesser |
| Dynamische Tragzahl, radial: 50.000 N |
| Ermüdungsgrenzbelastung, radial: 17.000 N |
| Minimaler Kantenabstand: 0,6 mm |
| Statische Tragzahl, radial: 98.000 N |
| T max 120 °C Betriebstemperatur max. |
| T min -30 °C Betriebstemperatur min. |
| n G 7.200 1/min Grenzdrehzahl |
| n ϑr 4.500 1/min Bezugsdrehzahl |
| r min 0,6 mm Minimaler Kantenabstand |
| ≈m 222,2 g Einzelgewicht |
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4.4 ★★★★★
Based on 2268 reviews
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Product Reviews
★★★★★ 3
Too small
Material Type: Gray - 3 Pairs, Size: X-Large
Too tight! Even size large used for a man with smaller feet is too tight. Also, no instructions for use or care.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Good fit
Material Type: Black - 3 Pairs, Size: X-Large
My husband just started using these and they feel comfortable. Hasn't used them long enough to see if his heels are better. He has a high arch so I bought him the XL and they fit perfectly.
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Reviewed in the United States on April 24, 2026
★★★★★ 5
No more painful cracked heels! These really do work!
Material Type: Black - 3 Pairs, Size: X-Large
These really do work well. This is one of the first winters that I have not experienced painful, cracked heels. They are long lasting, and definitely make my heels smoother and softer after wearing them. For the first few times wearing them I simply went with the moisturizer embedded in them. After a few uses I then covered my heels with Aquaphor Advanced Therapy Healing Ointment. This worked even better, and I would recommend it. I am very glad I bought these. Of note, I have really big feet that are quite wide and the XL are a little snug but not uncomfortably so. I use them overnight, but also have worn them under socks and they work fine.
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Reviewed in the United States on February 3, 2026
★★★★★ 5
Wonderful for dry feet
Material Type: Black - 3 Pairs, Size: X-Large
I have been dealing with dry skin and problems with the heel of my foot, so I thought I would give these a try. I am so glad I did. They moisturize beautifully. A must is you are having trouble with your feet.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Heel Fisures
Material Type: Black - 3 Pairs, Size: X-Large
Fantastic product. Worked well beyond my expectations.
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Reviewed in the United States on May 20, 2026