Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
21311EAKE4C3 NSK21311EAKE4 d 55 mm Bore diameter D 120 mm Outside diameter B 29 mm Width r (min.) 2 mm Chamfer dimension Cr 178000 N Basic dynamic load rating C0r 174000 N Basic static load rating Thermal Speed Rating (Oil bath) 5300 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 4500 min 1 Grease lubrication Oil (Oil bath)
| 21311EAKE4 |
| d | 55 | mm | Bore diameter |
| D | 120 | mm | Outside diameter |
| B | 29 | mm | Width |
| r (min.) | 2 | mm | Chamfer dimension |
| Cr | 178000 | N | Basic dynamic load rating |
| C0r | 174000 | N | Basic static load rating |
| Thermal Speed Rating (Oil-bath) | 5300 | 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 | 4500 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 5600 | min-1 | Oil-bath lubrication |
| da (min.) | 65 | mm | Diameter of shaft abutment (min) |
| da (max.) | 72 | mm | Diameter of shaft abutment |
| Da (min.) | 98 | mm | Diameter of housing abutment |
| Da (max.) | 110 | mm | Diameter of housing abutment |
| ra (max.) | 2 | mm | Radius of shaft or housing fillet |
| e | 0.23 | Constant | |
| Y2 | 4.4 | Axial load Factors | |
| Y3 | 3 | Axial load Factors | |
| Y0 | 2.9 | Axial load Factors |
| Mass approx. | 1.58 | kg | Mass approx. |
| Adapter | H311X | Adapter | |
| Withdrawal sleeve | AHX311 | Withdrawal sleeve |
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 1968 reviews
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Product Reviews
★★★★★ 5
Solid, stable USB-C hub that works well with both Mac and Windows machines
Great dock that works well with with Mac and Windows, and seems to be able to handle anything I can throw at it. I've had other UGREEN combo video+usb dongles that really bogged down when I used the video port, however this one did not even break a sweat when pushing out 1080p@60fps from my MacBook while handling multiple USB inputs and outputs, power delivery, and ethernet all at the same time. Definitely would consider this to be some of the best value for money around on the budget-conscious side of the USB-C hub/dock market.
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Reviewed in the United States on February 4, 2026
★★★★★ 5
great quality hub for your needs
works for connecting items to my laptop. it's a little bulky but it does the job i need it to and seems well built
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Reviewed in the United States on June 8, 2026
★★★★★ 5
Hell yeah
Love this, except it only works for my ipad, for some reason, it only charges my Samsung phone, note it might be user error. I didn't really try to check what the problem was because I bought it to use on my ipad. I use it to play pubg, and it works pretty good.
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Reviewed in the United States on February 24, 2026
★★★★★ 4
Good hub for the price. Got it on discount.
Good product that works as expected. Power draw would depend on the amount of peripherals but it also gets pretty warm with use.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Incredible value
This is my third UGREEN product and I am once again impressed. Their products are consistently top quality at a fraction of the cost compared to other brands.
This hub is no exception. Good combination of ports. High speed USB-C and USB-A. 4K@60Hz HDMI. Everything is working as advertised. The hub itself is very high quality feeling but also lightweight. Similar offerings from other brands can easily run more than double the price of this
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Reviewed in the United States on March 30, 2026