Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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For Your Every Summer RSVP, with Code: SUMMER15
Description
21315EAE4 NSK21315EAE4 d 75 mm Bore diameter D 160 mm Outside diameter B 37 mm Width r (min.) 2. 1 mm Chamfer dimension Cr 310000 N Basic dynamic load rating C0r 325000 N Basic static load rating Thermal Speed Rating (Oil bath) 4000 min 1 Oil bath lubrication subject to conditions outlined in ISO 15312 Mechanical (forced circulation oil) 5600 min 1 Properly designed and controlled forced circulation oil lubrication Grease 3200 min 1 Grease lubrication Oil (Oil
| 21315EAE4 |
| d | 75 | mm | Bore diameter |
| D | 160 | mm | Outside diameter |
| B | 37 | mm | Width |
| r (min.) | 2.1 | mm | Chamfer dimension |
| Cr | 310000 | N | Basic dynamic load rating |
| C0r | 325000 | N | Basic static load rating |
| Thermal Speed Rating (Oil-bath) | 4000 | min-1 | Oil-bath lubrication subject to conditions outlined in ISO 15312 |
| Mechanical (forced-circulation oil) | 5600 | min-1 | Properly designed and controlled forced-circulation oil lubrication |
| Grease | 3200 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 4000 | min-1 | Oil-bath lubrication |
| da (min.) | 87 | mm | Diameter of shaft abutment (min) |
| da (max.) | 101 | mm | Diameter of shaft abutment |
| Da (min.) | 134 | mm | Diameter of housing abutment |
| Da (max.) | 148 | mm | Diameter of housing abutment |
| ra (max.) | 2 | mm | Radius of shaft or housing fillet |
| e | 0.22 | Constant | |
| Y2 | 4.6 | Axial load Factors | |
| Y3 | 3.1 | Axial load Factors | |
| Y0 | 3 | Axial load Factors |
| Mass approx. | 3.64 | 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 1564 reviews
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Product Reviews
★★★★★ 5
Great quality and fast shipping
Size: Medium, Color: (001) Black / Black / Castlerock
These socks are tight but after the first wash and dry , they fit perfect and NEVER slide off , ordered a second pack
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Comfortable, Durable, and Stylish
Perfect gift choice! Excellent quality socks with a variety of colors to match any wardrobe.
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Reviewed in the United States on November 30, 2025
★★★★★ 5
Finally found a good set again.
Size: X-Large, Color: (001) Black / Black / Castlerock
I’m picky on socks, any they always have to be Under Amour. These are top notch, super padded but also temperature regulating, feet don’t sweat when wearing, and I can tell in the winter they’ll stay the right temperature. They also fit great. Purchasing more.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Best Quality Socks & Great Thickness Plus Comfort
Size: Medium, Color: (001) Black / Black / Castlerock
I love these. They do not slip away from foot. The value for a good pack of socks was worth it. Has a good thick quality. They look clean and nice. Their stretch is good to get on and then molds to foot.
Have noticed these socks have changed two times since buying. First they were slightly lighter color gray- then a darker gray but both had good quality and thickness. I am sure these are very durable but unfortunately I can not speak fully to this as the horrible steel toe shoes I have to wear rip everything apart. But if I had good shoes and everyday use of these I know they would stay good for so much longer than 6months.
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Reviewed in the United States on July 7, 2025
★★★★★ 5
Best socks ever
Size: Large, Color: (100) White / White / Mod Gray
Best athletic socks I’ve bought. I usually buy UA socks anyway and these are the best. Super soft and comfy. Fit snug and my feet don’t slide around in them.
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Reviewed in the United States on February 9, 2026