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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
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Description
6311 dduc3 nsk6311DDU d 55 mm Bore diameter D 120 mm Outside diameter B 29 mm Width r (min.) 2 mm Chamfer dimension Cr 78500 N Basic dynamic load rating C0r 44500 N Basic static load rating Grease 4000 min 1 Grease lubrication da (min.) 64 mm Diameter of shaft abutment (min) da (max.) 72. 5 mm Diameter of shaft abutment Da (max.) 111 mm Diameter of housing abutment ra (max.) 2 mm Radius of shaft or housing fillet fo 13. 1 Factor z 8 Number of Balls Dw 20. 638 mm
| 6311DDU |
| d | 55 | mm | Bore diameter |
| D | 120 | mm | Outside diameter |
| B | 29 | mm | Width |
| r (min.) | 2 | mm | Chamfer dimension |
| Cr | 78500 | N | Basic dynamic load rating |
| C0r | 44500 | N | Basic static load rating |
| Grease | 4000 | min-1 | Grease lubrication |
| da (min.) | 64 | mm | Diameter of shaft abutment (min) |
| da (max.) | 72.5 | mm | Diameter of shaft abutment |
| Da (max.) | 111 | mm | Diameter of housing abutment |
| ra (max.) | 2 | mm | Radius of shaft or housing fillet |
| fo | 13.1 | Factor |
| z | 8 | Number of Balls | |
| Dw | 20.638 | mm | Ball Diameter (mm) |
| Mass approx. | 1.37 | 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
4.3 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Quality Under Armour socks
Size: Large, Color: (100) White / White / Black
Nice medium thick sock that is breathable but cushioned. It stays put in the show and doesn’t fall down. Fit is true to size, no show/minimal show
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
★★★★★ 5
Perfect Pairs
Size: Large, Color: (100) White / White / Black
Very comfortable, soft & affordable..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
Excellent athletic socks
Size: Large, Color: (100) White / White / Black
Solid athletic socks at a great price. Not too thick, not too thin. Second time I've purchased them. They last longer than most socks I've used in the past too.
Only concern is the sizing. I may be reading the sizing chart wrong, but for my size 13 feet it says XL are the correct sock size. I've ordered Large twice and they're perfect. I would imagine the size Large socks would also fit up to size 14 shoe, but probably need to go with XL if foot is lager than 14.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
★★★★★ 4
Great product
Size: Large, Color: (035) Steel / White / Black
Comfortable fit perfect
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Quality No Show Socks That Are Comfortable and Durable
Size: Large, Color: (100) White / White / Black
These Under Armour no show socks are great for everyday training and casual wear. The cotton blend feels comfortable and they stay in place throughout the day. Getting six pairs in a pack is solid value for a quality brand. They hold up well after multiple washes and the no show style works great with most athletic shoes. A reliable go-to sock.
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Reviewed in the United States on April 30, 2026
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