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Description
zkln2557 2rspe inaTechnische Basisdaten Hersteller: INA Synonym: 0031069850000 BEAS025057 2RS PE BEAS25 57C SQ P60 ueres Breitenmae: 0 mm oberes Abma Auendurchmesser: 57 mm Montage: nicht vorhanden Montagesbohrungen Abdichtung: Doppelte Lippendichtung Gewicht: 354 Gramm Herstellungsland: Deutschland Kippsteifigkeit: 200 Nm mrad Massentrgheitsmoment: 0,486 kg * cm Planlauf: 5 m Schmierkanal: Schmiernut vorhanden an der Stirnseite Zolltarifnummer: 8482 1090 Erweiterte
Technische Basisdaten
| Hersteller: INA |
| Synonym: 0031069850000 BEAS025057-2RS/PE BEAS25/57C SQ P60 |
| Äußeres Breitenmaße: 0 mm oberes Abmaß |
| Außendurchmesser: 57 mm |
| Montage: nicht vorhanden Montagesbohrungen |
| Abdichtung: Doppelte Lippendichtung |
| Gewicht: 354 Gramm |
| Herstellungsland: Deutschland |
| Kippsteifigkeit: 200 Nm/mrad |
| Massenträgheitsmoment: 0,486 kg * cm² |
| Planlauf: 5 µm |
| Schmierkanal: Schmiernut vorhanden an der Stirnseite |
| Zolltarifnummer: 8482 1090 |
Erweiterte technische Daten
| 2RS Lip Seal At Both Sides Of The Bearing, Axial Fitting |
| Äußeres Breitenmaße: Zoll |
| Äußeres Breitenmaße: mm 57,00 |
| Axial Dynamic Load Rating Ca (N) 27500 |
| Axial Static Load Rating C0a (N) 55000 |
| Begrenzungsdrehzahl für SchmierstoffLubrikation: (n G Fett) "5700.0000" |
| Äußeres Breitenmaße:(B) Zoll |
| Äußeres Breitenmaße:(B) mm 28,00 |
| Äußeres Breitenmaße:(b) mm 28,00 |
| ECLASS number 23-05-10-02 |
| ECLASS2 number 23-05-10-02 |
| Einzelgewicht in (kg): 0.34 |
| Innenmaße: Zoll |
| Innenmaße: mm 25,00 |
| PE Enlarged Diameter Tolerance And Axial Runout To P5 Tolerance Class For Radial Bearings |
| Präzision P5 Präzision (Höher als P6) |
| -0,013 mm Außendurchmesser unteres Abmaß |
| 0 mm Außendurchmesser oberes Abmaß |
| 5 µm Planlauf |
| AM25 Empfohlene INA-Präzisionsnutmutter axial klemmbar |
| Anziehdrehmoment für die empfohlene INA-Präzisionsnutmutter: 25 Nm |
| Außendurchmesser oberes Abmaß: 0 mm |
| Außendurchmesser unteres Abmaß: -0,013 mm |
| Betriebstemperatur max.: 120 °C |
| Betriebstemperatur min.: -30 °C |
| Äußeres Breitenmaß oberes Abmaß: 0 mm |
| C 0a 55.000 N statische Tragzahl, axial |
| C a 27.500 N dynamische Tragzahl, axial |
| C ua 2.500 N Ermüdungsgrenzbelastung, axial |
| D 57 mm Außendurchmesser |
| Empfohlene INA-Präzisionsnutmutter axial klemmbar: AM25 |
| Empfohlene INA-Präzisionsnutmutter radial klemmbar: ZM25 |
| Ermüdungsgrenzbelastung, axial: 2.500 N |
| M A 25 Nm Anziehdrehmoment für die empfohlene INA-Präzisionsnutmutter |
| M m 0,486 kg*cm2 Massenträgheitsmoment |
| Minimaler Kantenabstand: 0,3 mm |
| Minimaler Kantenabstand: 0,6 mm |
| Steifigkeit axial: 750 N/µm |
| T max 120 °C Betriebstemperatur max. |
| T min -30 °C Betriebstemperatur min. |
| ZM25 Empfohlene INA-Präzisionsnutmutter radial klemmbar |
| c aL 750 N/µm Steifigkeit axial |
| c kL 200 Nm/mrad Kippsteifigkeit |
| dynamische Tragzahl, axial: 27.500 N |
| n ϑ 2.600 1/min thermisch zulässige Drehzahl |
| r 1 min 0,6 mm Minimaler Kantenabstand |
| r min 0,3 mm Minimaler Kantenabstand |
| statische Tragzahl, axial: 55.000 N |
| thermisch zulässige Drehzahl: 2.600 1/min |
| ≈m 0,354 kg Einzelgewicht |
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Exchange/Return Notes
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4.8 ★★★★★
Based on 1419 reviews
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Product Reviews
★★★★★ 5
Easy set up
Model: iPad Pro 12.9 2022/2021/2020/2018
Nice product. I cracked my screen in my iPad and wanted something to keep it from getting worse
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2026
★★★★★ 5
Great product!
Color: Dark Cherry
Was nervous after reading reviews but I have had zero issues with this product. I actually really like it and have gotten so many compliments on the color and versatility of it. The charge on the keyboard lasts so long and the led colors are super fun for those late night study sessions or homework cramming. The case also works great on its own without the keyboard, k like that it wraps around the iPad completely.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Good quality case with a good price!
Color: Pine Green, Color: Pine Green
I love this case!
I have used the case forever now, I wanted something to cover my screen when not in use I have had my iPad in my purse or in my car my kids have handled it and my iPad has stayed in perfect condition.
I just started using the key board. I don’t like how flat the keyboard is but it’s a good keyboard when comparing prices it does what it needs to! The magnetic closures are strong! I have some off brand pencils but have not tried the slot that holds a pencil yet but looking at it I can see how it could hold a pencil better than a Samsung tablet I have does as the case to that one the slot is on the outside and does not hold the pencil well.
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Reviewed in the United States on February 2, 2026
★★★★★ 5
Great case and keyboard
Color: Light Pink, Color: Light Pink
Omg. I LOVE this case and keyboard. It works so well and makes my iPad seem like a computer. It’s connects really well and I love the keyboard colors! I’ve been using it at work and it has been so great on saving notes and writing emails using the keyboard etc. And it’s very sturdy!
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Reviewed in the United States on January 12, 2026
★★★★★ 4
Made well but function is challenging
Color: Dark Cherry
I’m not so sure I really like this over all. The keys on the keyboard are nice, not mushy at all, very clear and functional. And the size of the keyboard is fine. It’s not full size and I didn’t expect it to be. But what I can’t get used to is how floppy the rest of it is. It won’t sit well in my lap, it must be on a flat surface to function at all. I find that very frustrating. The grooves that prop up the ipad won’t hold it if you move it at all. The keyboard must be unattached, moved and reattached to close up everything securely. Also it is heavier than I expected.
The quality is good. It is not cheaply made. The color is just what I wanted and expected from the description.
I’m giving it four stars instead of three because it is made well, but it’s mostly form over function.
Edit: I returned this product and ordered a keyboard with the swivel holder for the ipad, much sturdier and steadier.
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Reviewed in the United States on March 15, 2025