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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
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Description
NUP311 EWC3 NSKNUP311EW d 55 mm Bore diameter D 120 mm Outside diameter B 29 mm Width FW 70. 5 mm Raceway diameter of inner ring r (min.) 2 mm Chamfer dimension r1 (min.) 2 mm Chamfer dimension Cr 169000 N Basic dynamic load rating C0r 143000 N Basic static load rating Thermal Speed Rating (Oil bath) 6000 min 1 Oil bath lubrication subject to conditions outlined in ISO 15312 Mechanical (forced circulation oil) 9000 min 1 Properly designed and controlled forced
| NUP311EW |
| d | 55 | mm | Bore diameter |
| D | 120 | mm | Outside diameter |
| B | 29 | mm | Width |
| FW | 70.5 | mm | Raceway diameter of inner ring |
| r (min.) | 2 | mm | Chamfer dimension |
| r1 (min.) | 2 | mm | Chamfer dimension |
| Cr | 169000 | N | Basic dynamic load rating |
| C0r | 143000 | N | Basic static load rating |
| Thermal Speed Rating (Oil-bath) | 6000 | min-1 | Oil-bath lubrication subject to conditions outlined in ISO 15312 |
| Mechanical (forced-circulation oil) | 9000 | min-1 | Properly designed and controlled forced-circulation oil lubrication |
| Grease | 4500 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 5600 | min-1 | Oil-bath lubrication |
| da (min.) | 64 | mm | Diameter of shaft abutment (min) |
| db (min.) | 64 | mm | Diameter of shaft / spacer sleeve abutment |
| db (max.) | 68 | mm | Diameter of shaft / spacer sleeve abutment |
| dc (min.) | 72 | mm | Diameter of shaft abutment |
| dd (min.) | 80 | mm | Diameter of shaft abutment |
| Da (max.) | 111 | 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. | 1.54 | 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
4.2 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 3
Mostly Good toy. Could be great.
Color: Blue
The ball looks well made and the dog absolutely loves it. He can't stop playing with it. It's awsome to see. The only problem, abd it's a big one, is that we can't open the ball to turn it off. The two halves are stuck together and don't budge. I'll wait until battery dies and try then.
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Reviewed in the United States on October 14, 2025
★★★★★ 5
Entertaining
Color: Blue
This smart ball is a great toy for your dog. It’s the perfect size for most dogs and it’s made of durable material that chewing doesn’t hurt. It’s easy to charge and will run for hours. It’s very quiet and has 3 modes of play to choose from, rolling, bouncing or a combination of both to keep them (and you) entertained for hours.
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Reviewed in the United States on March 27, 2026
★★★★★ 5
Love this ball toy
Color: Orange
Great dog toy. My cavapoo is always interested in playing with it.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Nice chew toy for daily pet pastime
Color: Orange
Saw this ball and picked it for my neighbor’s pet. Multiple play modes keep dog engaged all the time. Tough material stands regular biting well.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Love this ball toy
Color: Orange
Great dog toy. My cavapoo is always interested in playing with it.
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Reviewed in the United States on May 25, 2026