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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
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Description
51217 nsk51217 d 85 mm Bore diameter D 125 mm Outside diameter T,T3 31 mm Height r (min.) 1 mm Chamfer dimension Ca 96000 N Basic dynamic load rating C0a 264000 N Basic static load rating Grease 1600 min 1 Grease lubrication Oil (Oil bath) 2400 min 1 Oil bath lubrication d1 125 mm Outside diameter shaft washer D1 88 mm Inner diameter housing washer da (min.) 109 mm Diameter of shaft abutment (min) Da (max.) 101 mm Diameter of housing abutment ra (max.) 1 mm
| 51217 |
| d | 85 | mm | Bore diameter |
| D | 125 | mm | Outside diameter |
| T,T3 | 31 | mm | Height |
| r (min.) | 1 | mm | Chamfer dimension |
| Ca | 96000 | N | Basic dynamic load rating |
| C0a | 264000 | N | Basic static load rating |
| Grease | 1600 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 2400 | min-1 | Oil-bath lubrication |
| d1 | 125 | mm | Outside diameter shaft washer |
| D1 | 88 | mm | Inner diameter housing washer |
| da (min.) | 109 | mm | Diameter of shaft abutment (min) |
| Da (max.) | 101 | mm | Diameter of housing abutment |
| ra (max.) | 1 | mm | Radius of shaft or housing fillet |
| Mass approx. | 1.22 | 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
4.9 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Better Night Sleep
Size: Queen, Unit Count: 2.0
These pillows has been letting me have a better nights sleep. Soft but not too soft. They keep their shape and gives my neck support as a side sleeper.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Comfortable pillows for side sleepers
Size: King, Unit Count: 4.0
Great pillows!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Perfect Jumbo Size with Hotel-Quality Comfort & Support
Color: White, Size: Queen(Pack of 2)
I recently purchased the Jumbo size pillows. After trying a week, I couldn’t be happier with them! The size is perfect—nice and full without feeling bulky. They provide just the right amount of medium support, keeping my head and neck comfortable whether I’m sleeping on my back or side.
The 100% cotton cover feels soft and breathable, and the pillows stay cool throughout the night. I also love the gusseted design—it really helps the pillows maintain their shape and gives them that luxury hotel feel. Even after several nights of use, they haven’t gone flat.
Another big plus is that they’re machine washable, which makes maintenance super easy. Overall, these Jumbo pillows are plush, supportive, and great quality for the price. Highly recommend!
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Reviewed in the United States on March 1, 2026
★★★★★ 5
Best pillows we’ve ever had!
Color: White, Size: King(Pack of 2)
These are so insanely comfortable! They have the perfect amount of softness and support. Not too flat, not too full, just right. You will sink into it like a big marshmallow!
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Comfortable pillows 🤩
Color: White, Size: Queen(Pack of 2), Color: White, Size: Queen(Pack of 2)
I bought the Serta Hotel Collection Bed Pillows (Queen size) and I absolutely loved them. They are super soft yet provide great support; they feel very comfortable and help make for a much better, more pleasant night's sleep. Plus, the fabric is cool and of high quality. I recommend them wholeheartedly!
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Reviewed in the United States on April 22, 2026