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Description
21313 EAE4 NSK21313EAE4 d 65 mm Bore diameter D 140 mm Outside diameter B 33 mm Width r (min.) 2. 1 mm Chamfer dimension Cr 264000 N Basic dynamic load rating C0r 275000 N Basic static load rating Thermal Speed Rating (Oil bath) 4500 min 1 Oil bath lubrication subject to conditions outlined in ISO 15312 Mechanical (forced circulation oil) 6000 min 1 Properly designed and controlled forced circulation oil lubrication Grease 3600 min 1 Grease lubrication Oil (Oil
| 21313EAE4 |
| d | 65 | mm | Bore diameter |
| D | 140 | mm | Outside diameter |
| B | 33 | mm | Width |
| r (min.) | 2.1 | mm | Chamfer dimension |
| Cr | 264000 | N | Basic dynamic load rating |
| C0r | 275000 | N | Basic static load rating |
| Thermal Speed Rating (Oil-bath) | 4500 | min-1 | Oil-bath lubrication subject to conditions outlined in ISO 15312 |
| Mechanical (forced-circulation oil) | 6000 | min-1 | Properly designed and controlled forced-circulation oil lubrication |
| Grease | 3600 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 4500 | min-1 | Oil-bath lubrication |
| da (min.) | 77 | mm | Diameter of shaft abutment (min) |
| da (max.) | 94 | mm | Diameter of shaft abutment |
| Da (min.) | 126 | mm | Diameter of housing abutment |
| Da (max.) | 128 | 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. | 2.45 | 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
4.4 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Sitting on a very comfortable leather chair
Color: Black, Color: Black
I have been using this chair for a few days. First of all, the installation is very simple and convenient. You can learn it just by looking at the drawings. It takes about 20 minutes to install. The chair is very comfortable to sit on. Its support and comfort are beyond expectations. It can relieve the fatigue of the waist and you won't feel very tired when sitting. The leather material is also good. It can be rotated, moved up and down, and can be moved. The armrests can also be moved up and down. This price is worth it. Overall, I'm very satisfied and comfortable.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Very comfortable chair!
Color: Black
This office chair is a great addition to my bedroom. It offers really nice comfort because of its thick and cushioned back which helps make long hours at a desk much more enjoyable. The adjustable height is really nice as it makes this chair extremely versatile. The armrests are sturdy and positioned well for typing or resting your arms. They also move back if you don’t like them. The assembly was straightforward and didn’t take long as the instructions were clear and easy to follow. The wheels roll really nice and don’t get stuck. This chair is really comfortable and nice.
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Reviewed in the United States on March 3, 2026
★★★★★ 5
Very Comfortable
Color: Black, Color: Black
Very easy to assemble , only 7 steps, and the tools are included.Great quality , material quality is high.The cushion supports my lower back. Very comfortable.price is reasonable.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
great
Color: Black
Excellent chair for shorter users! The seat height and lumbar support fit perfectly, providing great comfort even after long hours of work. The PU leather looks sleek and is easy to clean. The wheels roll smoothly, and the 360° swivel works perfectly. Assembly was simple and quick.
Great quality and amazing value for the price. Highly recommended!
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Reviewed in the United States on March 2, 2026
★★★★★ 5
Very sturdy
Color: Black, Color: Black
Good comfort level ✔
The seat cushion is soft but doesn't sag, and the armrests also provide some cushioning.
Easy to clean ✔
The leather surface can be easily wiped clean with a damp cloth, making it ideal for use on tables with drinks or snacks.
Simple installation, clear instructions
"The cushions on the chair back and armrests are soft enough, not too hard.
It offers good value for money; the price is reasonable, but the seating comfort is better than I expected.
"Suitable for daily office work or study."
The seat cushion is very comfortable, and the back support is excellent.
Adjustable height, smooth
The chair is sturdy No shaking
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Reviewed in the United States on March 4, 2026
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