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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
6808 vv nsk6808VV d 40 mm Bore diameter D 52 mm Outside diameter B 7 mm Width r (min.) 0. 3 mm Chamfer dimension d1 49. 8 mm Outside diameter of inner ring D1 42. 1 mm Bore diameter of outer ring Cr 7000 N Basic dynamic load rating C0r 5550 N Basic static load rating Grease 12000 min 1 Grease lubrication da (min.) 42 mm Diameter of shaft abutment (min) da (max.) 42 mm Diameter of shaft abutment Da (max.) 50 mm Diameter of housing abutment ra (max.) 0. 3 mm
| 6808VV |
| d | 40 | mm | Bore diameter |
| D | 52 | mm | Outside diameter |
| B | 7 | mm | Width |
| r (min.) | 0.3 | mm | Chamfer dimension |
| d1 | 49.8 | mm | Outside diameter of inner ring |
| D1 | 42.1 | mm | Bore diameter of outer ring |
| Cr | 7000 | N | Basic dynamic load rating |
| C0r | 5550 | N | Basic static load rating |
| Grease | 12000 | min-1 | Grease lubrication |
| da (min.) | 42 | mm | Diameter of shaft abutment (min) |
| da (max.) | 42 | mm | Diameter of shaft abutment |
| Da (max.) | 50 | mm | Diameter of housing abutment |
| ra (max.) | 0.3 | mm | Radius of shaft or housing fillet |
| fo | 17 | Factor |
| z | 21 | Number of Balls | |
| Dw | 3.969 | mm | Ball Diameter (mm) |
| Mass approx. | 0.031 | kg | Mass approx. |
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
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.5 ★★★★★
Based on 86 reviews
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Product Reviews
★★★★★ 4
Best pillow I’ve ever tried—hands down!
Size: Queen, Number of Items: 2
I’ve gone through a bunch of pillows over the years, but this BETU Cooling Pillow is by far the best one I’ve ever used. I sleep in literally every position—on my back, stomach, and sides—and this pillow works perfectly no matter how I’m laying.
It really does have a cooling effect, which I love as a hot sleeper. Just make sure your room is cool too, and it makes a big difference. It came vacuum-packed, but it fully expanded within just a few hours. I was able to sleep on it the same day it arrived, and it was super comfy right from the start.
I also washed and dried the pillowcase before using it, and it came out looking and feeling great—no shrinking or damage at all. Honestly, I look forward to going to bed every night now just because of this pillow. It’s supportive, comfortable, and totally worth it!
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Reviewed in the United States on February 21, 2026
★★★★★ 5
Excellent pillows!
Size: Queen, Number of Items: 2
This pack came with 2 pillows, one firm and one that was flatter and squishy. I absolutely love the flatter one! Most comfortable pillow I've ever used! The firm one was a bit too much for me, but my husband loves it.
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Reviewed in the United States on March 28, 2026
★★★★★ 3
It’s alright.
Size: Queen, Number of Items: 2
Not bad pillows. They are comfortable but mine came with an odd odor, kind of mildewy smell to it. Had to spray it down to tolerate sleeping on it.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Nice pillows
Size: Queen, Number of Items: 2
Have had these a few months and so far really like them!
They don’t really feel very cooling, but I also run VERY HOT so it could just be me. The foam holds up well and hasn’t flattened like others I’ve tried.
They come very compacted- I was shocked how much they expanded!
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Mr.b
Size: Standard, Number of Items: 2
The pillows are cool and comfortable
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Reviewed in the United States on May 27, 2026