Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
NU310 ETC3 NSKNU310ET 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) 8000 min 1 Properly designed and controlled forced
| NU310ET |
| 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) | 8000 | 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. | 1.12 | 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 1947 reviews
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Product Reviews
★★★★★ 5
They do what they are supposed to do
Style: for Saros 10R / Saros 20 / Qrevo CurvX
They fit the Saros 10R perfectly and do the job they are intended to do.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
★★★★★ 5
great deal on wear parts
Style: for Saros 10R / Saros 20 / Qrevo CurvX
perfect fit for my roborock saros 10r
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2025
★★★★★ 5
Works and fits as advertised.
Style: for Saros 10R / Saros 20 / Qrevo CurvX
Arrived and functions as advertised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
Great product
Style: for Saros 10R / Saros 20 / Qrevo CurvX
I just love my Roborock and the accessories
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 7, 2025
★★★★★ 5
Fits Curv X
Style: for Saros 10R / Saros 20 / Qrevo CurvX
These work great for the Curv X. Everything fits like it's supposed to.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2025