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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
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Description
nu310 ewc3 nskNU310EW d 50 mm Bore diameter D 110 mm Outside diameter B 27 mm Width FW 65 mm Raceway diameter of inner ring r (min.) 2 mm Chamfer dimension r1 (min.) 2 mm Chamfer dimension Cr 135000 N Basic dynamic load rating C0r 113000 N Basic static load rating Thermal Speed Rating (Oil bath) 6700 min 1 Oil bath lubrication subject to conditions outlined in ISO 15312 Mechanical (forced circulation oil) 10000 min 1 Properly designed and controlled forced
| NU310EW |
| d | 50 | mm | Bore diameter |
| D | 110 | mm | Outside diameter |
| B | 27 | mm | Width |
| FW | 65 | mm | Raceway diameter of inner ring |
| r (min.) | 2 | mm | Chamfer dimension |
| r1 (min.) | 2 | mm | Chamfer dimension |
| Cr | 135000 | N | Basic dynamic load rating |
| C0r | 113000 | N | Basic static load rating |
| Thermal Speed Rating (Oil-bath) | 6700 | min-1 | Oil-bath lubrication subject to conditions outlined in ISO 15312 |
| Mechanical (forced-circulation oil) | 10000 | min-1 | Properly designed and controlled forced-circulation oil lubrication |
| Grease | 5000 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 6000 | min-1 | Oil-bath lubrication |
| da (min.) | 59 | mm | Diameter of shaft abutment (min) |
| db (min.) | 59 | mm | Diameter of shaft / spacer sleeve abutment |
| db (max.) | 63 | mm | Diameter of shaft / spacer sleeve abutment |
| dc (min.) | 67 | mm | Diameter of shaft abutment |
| dd (min.) | 73 | mm | Diameter of shaft abutment |
| Da (max.) | 101 | mm | Diameter of housing abutment |
| rb (max.) | 2 | mm | Radius of shaft or housing fillet |
| ra (max.) | 2 | mm | Radius of shaft or housing fillet |
| Mass approx. | 1149 | 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
4.0 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Excellent waterproof mattress cover find
Color: 5 Beige, Size: Queen
Good quality. Backing is waterproof with quiet material being such. Top cover is soft cotton which is hard to find. Followed proper washing & drying per tag instructions results were good. Em confident it will have longevity in quality. Also, a perfect regular queen mattress fit.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Fantastic mattress cover!
Color: 4 Black, Size: Twin XL, Color: 4 Black, Size: Twin XL
My son's bed needed a new mattress cover. The old one was a synthetic material that held stains, had snags and runs and didn't last long.
So, I went hunting and found this one. I liked that it was quilted as well as waterproof, nice looking. I purchased one for my son's bed, black. Wow, these are really nice. They fit great and are so much more attractive, completely elevates the bed.
They make a bit of noise when being put on the bed but are completely silent when laying on the bed. No more crinkle sound!
I was so impressed I purchased one for my bed too! Never going back to the old covers. These will not disappoint.
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Reviewed in the United States on April 19, 2026
★★★★★ 4
Great mattress cover
Color: 1 Gray, Size: California King
Fit our California king perfectly. Goes on just like a fitted sheet. Lightly padded and is infact water proof. Exactly what we were looking for and in our budget!
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Good protector
Color: 2 White, Size: King
Excellent quality mattress protector for the price. It’s waterproof, quiet, and comfortable to sleep on. I also like that it’s machine washable and keeps the mattress fresh and clean. Would definitely buy again.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Great purchase!
Color: 1 Gray, Size: California King
I am really happy with this mattress protector! It fit my mattress perfectly and was easy to put on without constantly slipping around. The material feels soft and comfortable, not stiff or plasticky like some waterproof protectors. I also like that it doesn’t make any crinkling noises when moving around in bed. It gives me peace of mind knowing my mattress is protected while still feeling breathable and comfortable to sleep on. Overall, great quality for the price and I would definitely buy it again.
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Reviewed in the United States on May 15, 2026