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Description
NNU4920BK/SPW33 SKFTechnische Basisdaten Hersteller: SKF Ermdungsgrenzbelastung: 29 kN Fettbezugsmenge: Gref: 13: cm Gewicht: 1820 Gramm Herstellungsland: sterreich Innendurchmesser: 100 mm Zolltarifnummer: 8482 5000 Erweiterte technische Daten ueres Breitenmae:(D) mm 140,00 ueres Breitenmae:(B) mm 40,00 Einzelgewicht in (kg): 1. 84 Externe Modifikation W33 Innenmae:(d) mm 100,00 Interne Radialluft Cn Normale Innenluft Przision SP Precision Higher than P4S SP Special
Technische Basisdaten
| Hersteller: SKF |
| Ermüdungsgrenzbelastung: 29 kN |
| Fettbezugsmenge: Gref: 13: cm³ |
| Gewicht: 1820 Gramm |
| Herstellungsland: Österreich |
| Innendurchmesser: 100 mm |
| Zolltarifnummer: 8482 5000 |
Erweiterte technische Daten
| Äußeres Breitenmaße:(D) mm 140,00 |
| Äußeres Breitenmaße:(B) mm 40,00 |
| Einzelgewicht in (kg): 1.84 |
| Externe Modifikation W33 |
| Innenmaße:(d) mm 100,00 |
| Interne Radialluft Cn Normale Innenluft |
| Präzision SP - Precision Higher than P4S |
| SP Special Precision Class For Machine Tool Bearings; Dimensional Accuracy Approximately To P5, Running Accuracy Approximately To P4 |
| W33 Lubrication Groove And Three Holes In Bearing Outer Ring |
| Wärmestabilisierung: Keine Wärmestabilisierung: - Temperaturen bis 120°C |
| Anzahl der Reihen 2 |
| Beschichtung Ohne |
| Dynamische Tragzahl 128 kN |
| Dynamische Tragzahl: 128 kN |
| Einzelgewicht 1.76 kg |
| Erreichbare Drehzahlen für Öl-Luft-Lubrikation: 6 300 r/min |
| Loser Bord Kein(e/r) |
| Nachschmierfunktion Annular groove and lubrication holes |
| Statische Tragzahl 255 kN |
| Statische Tragzahl: 255 kN |
| Statische radiale Steifigkeit (Richtwert): 2 950: N/µm |
| UNSPSC-Code 31171505 |
| eClass-Code 23-05-09-01 |
| max.1.1 mm Zulässige axiale Verschiebbarkeit von der normalen Position eines Rings gegenüber dem anderen Ring (alle) |
| min.106 mm Durchmesser der WelleKeine/ Nicht vorhandenlauffläche |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Actually works, and really well
Color: Original Grey
I bought these because I got them on a great deal and was quite skeptical, but they actually worked exactly as advertised and I saw a huge difference after the first night! I understand why they don’t cover the whole foot like a regular sock (it would be stifling), but it would be incredible if they made a pair that go forward enough to cover the ball of the foot. One pair lasted about 3 weeks before the moisturizer wore out (I did notice a dropoff after washing, so for best results put them on when you’re clean and just for overnight, so you can avoid washing).
Apologies for no photos- no one wants to see the before photos. These work so well I’ve just come back to order more even though I’m now paying full price. Definitely, definitely recommend.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Comfortably and works
Color: Original Grey
❤️ I used these with magnesium lotion on my heals for 3 nights, soaked my feet every morning and cracked heals are gone!
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Reviewed in the United States on April 25, 2026
★★★★★ 5
A game changer for deep heel cracks and psoriasis!
Color: Original Grey, Color: Original Grey
If you have deep cracks or psoriasis on your heels, get these they are a total game changer! They hold in Vaseline and topical meds perfectly while I sleep, providing much needed relief without getting all over my sheets. My heels are healing faster and my callouses are softer and don’t split open because the moisture is trapped against the skin all night with the built in gel cushion lining instead of rubbing off. So much hydration.
The fact that it is a 2 pack is perfect because while one pair is being washed and drying, you still have a set to wear. Very soft, stretchy, breathable, and easy to sleep in. I highly recommend them!
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Great item!!
Color: Original Grey
These socks actually work!!!
No more split skin on my heels!!
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Reviewed in the United States on May 9, 2026
★★★★★ 3
Quality and Price
Color: Original Grey
For me a little tight on my ankles
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Reviewed in the United States on March 20, 2026