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Description
ZARN2557-L-TV INATechnische Basisdaten Hersteller: INA Synonym: 0016821480000 Auendurchmesser: 57 mm Gewicht: 592 Gramm Herstellungsland: Deutschland Kippsteifigkeit: 350 Nm mrad Massentrgheitsmoment: 1,15 kg * cm Planlauf: 1 m Zolltarifnummer: 8482 8000 Erweiterte technische Daten ueres Breitenmae: mm 57,00 Axial Dynamic Load Rating Ca (N) 35500 Axial Static Load Rating C0a (N) 86000 Begrenzungsdrehzahl fr SchmierstoffLubrikation: (n G Fett) "1900. 0000"
Technische Basisdaten
| Hersteller: INA |
| Synonym: 0016821480000 |
| Außendurchmesser: 57 mm |
| Gewicht: 592 Gramm |
| Herstellungsland: Deutschland |
| Kippsteifigkeit: 350 Nm/mrad |
| Massenträgheitsmoment: 1,15 kg * cm² |
| Planlauf: 1 µm |
| Zolltarifnummer: 8482 8000 |
Erweiterte technische Daten
| Äußeres Breitenmaße: mm 57,00 |
| Axial Dynamic Load Rating Ca (N) 35500 |
| Axial Static Load Rating C0a (N) 86000 |
| Begrenzungsdrehzahl für SchmierstoffLubrikation: (n G Fett) "1900.0000" |
| Begrenzungsdrehzahl für ÖlLubrikation: (n G Öl) "6000.0000" |
| Äußeres Breitenmaße:(B) mm 65,00 |
| ECLASS number 23-05-12-90 |
| ECLASS2 number 23-05-12-90 |
| Einzelgewicht in (kg): 0.59 |
| Höhe (H) mm 65,00 |
| Innenmaße: mm 25,00 |
| L Long Locating Washers |
| Radial Dynamic Load Rating Cr (N) 22600 |
| Radial Static Load Rating C0r (N) 36000 |
| TV Polyamide Cage |
| 1 µm Planlauf |
| Absatzduchmesser Wellenscheibe lang: 36 mm |
| Anziehdrehmoment (Mutter): 25 Nm |
| Betriebstemperatur max.: 120 °C |
| Betriebstemperatur min.: -30 °C |
| Borddurchmesser Wellenscheibe: 47 mm |
| C 0a 86.000 N statische Tragzahl, axial |
| C 0r 36.000 N Statische Tragzahl, radial |
| C a 35.500 N dynamische Tragzahl, axial |
| C r 22.600 N Dynamische Tragzahl, radial |
| C ua 7.300 N Ermüdungsgrenzbelastung, axial |
| C ur 5.200 N Ermüdungsgrenzbelastung, radial |
| D 1 47 mm Borddurchmesser Wellenscheibe |
| D 2 36 mm Absatzduchmesser Wellenscheibe lang |
| D 57 mm Außendurchmesser |
| Dynamische Tragzahl, radial: 22.600 N |
| Ermüdungsgrenzbelastung, axial: 7.300 N |
| Ermüdungsgrenzbelastung, radial: 5.200 N |
| Grenzdrehzahl für Öl-Lubrikation: 6.000 1/min |
| M A 25 Nm Anziehdrehmoment (Mutter) |
| M m 1,15 kg*cm2 Massenträgheitsmoment |
| Minimaler Anlagedurchmesser Wellenschulter: 34 mm |
| Minimaler Kantenabstand: 0,3 mm |
| Minimaler Kantenabstand: 0,6 mm |
| Statische Tragzahl, radial: 36.000 N |
| Steifigkeit axial: 1.900 N/µm |
| T max 120 °C Betriebstemperatur max. |
| T min -30 °C Betriebstemperatur min. |
| c aL 1.900 N/µm Steifigkeit axial |
| c kL 350 Nm/mrad Kippsteifigkeit |
| d =a min 34 mm Minimaler Anlagedurchmesser Wellenschulter |
| dynamische Tragzahl, axial: 35.500 N |
| n G Oil 6.000 1/min Grenzdrehzahl für Öl-Lubrikation |
| r 1 min 0,6 mm Minimaler Kantenabstand |
| r min 0,3 mm Minimaler Kantenabstand |
| statische Tragzahl, axial: 86.000 N |
| ≈m 0,592 kg Einzelgewicht |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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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.
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4.3 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 3
Oversized
Size: Queen (Pack of 2), Color: White
I have chronic neck pain. I am forever buying new pillows. Sometimes I think I found the perfect pillow but then three months later they’re losing their loft. I thought I would give these pillows to try since the stuffing is removable. Now these pillows are really oversized. To the point where I thought that they had sent me king-size pillows but I double checked the packaging and they were Queen. I ended up having to buy king-size pillowcases for them because they just barely fit in the queen size and the pillowcases would always end up pulling back from the edge. So that’s a negative one star there. Now I’ve been sleeping on these pillows for a while and they have held up well. I did end up removing some of the stuffing because it was just too much. I’m a side sleeper and when I use this pillow, it does a good job of keeping my neck in alignment. However, the pillow tends to migrate up as I sleep. Or I tend to slip down off the pillow, either or. So that’s why I’ve removed a second star. Maybe if I removed more stuffing that wouldn’t happen, but then I feel like the loft would be too little. I will say that these provide great support when sitting up in bed reading or watching TV. So would I buy them again? Probably not. Am I going to keep using them? Yes
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Reviewed in the United States on December 23, 2025
★★★★★ 5
Best Pillow Ever
Size: Queen(Pack of 2)
I am absolutely obsessed with these pillows! They have the perfect balance of firmness and softness, providing amazing support for my head and neck. I've never slept better, and I can honestly say I'd order more in a heartbeat. These pillows are a game-changer for my sleep quality. I highly recommend them to anyone looking for the ultimate comfort.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Worth it!
Size: Queen(Pack of 2)
These pillows are amazing and very soft and comfortable. They came nicely packaged and I let them sit out for just a few hours before using them and that was plenty of time! They come with the cooling cover and fit a standard queen sized pillowcase. The material expands well and does not have any weird smells. 10/10 well worth the price.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Miracle pillow
Size: Standard(Pack of 2)
Best pillow I’ve ever had. I have been using this since December 2024 and it still hasn’t gotten flat. It is amazingly comfortable and solves all my neck issues for a side sleeper. My head never gets hot either. I’ve recommended this to my friends and they’ve had success with it as well.
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Reviewed in the United States on May 28, 2026
★★★★★ 4
Really wanted to love these
Size: Queen(Pack of 2)
I really wanted to love these but they gave me a stiff neck. I haven't slept with a pillow since buying these. They are firm except where you lay your head. It just deflates there. I expected it to sink in to match the curve of my neck but it was more than I could handle. My head ended up in a valley between the two ends of the pillow. The price was good, zipper worked fine, it looks as advertised and the pillows are good quality. The cooling part works, its just not what I needed.
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Reviewed in the United States on March 30, 2026