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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
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Description
nup308 ewc3 nskNUP308EW d 40 mm Bore diameter D 90 mm Outside diameter B 23 mm Width FW 52 mm Raceway diameter of inner ring r (min.) 1. 5 mm Chamfer dimension r1 (min.) 1. 5 mm Chamfer dimension Cr 102000 N Basic dynamic load rating C0r 81500 N Basic static load rating Thermal Speed Rating (Oil bath) 7500 min 1 Oil bath lubrication subject to conditions outlined in ISO 15312 Mechanical (forced circulation oil) 12000 min 1 Properly designed and controlled forced
| NUP308EW |
| d | 40 | mm | Bore diameter |
| D | 90 | mm | Outside diameter |
| B | 23 | mm | Width |
| FW | 52 | mm | Raceway diameter of inner ring |
| r (min.) | 1.5 | mm | Chamfer dimension |
| r1 (min.) | 1.5 | mm | Chamfer dimension |
| Cr | 102000 | N | Basic dynamic load rating |
| C0r | 81500 | N | Basic static load rating |
| Thermal Speed Rating (Oil-bath) | 7500 | min-1 | Oil-bath lubrication subject to conditions outlined in ISO 15312 |
| Mechanical (forced-circulation oil) | 12000 | min-1 | Properly designed and controlled forced-circulation oil lubrication |
| Grease | 6700 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 8000 | min-1 | Oil-bath lubrication |
| da (min.) | 48 | mm | Diameter of shaft abutment (min) |
| db (min.) | 48 | mm | Diameter of shaft / spacer sleeve abutment |
| db (max.) | 50 | mm | Diameter of shaft / spacer sleeve abutment |
| dc (min.) | 55 | mm | Diameter of shaft abutment |
| dd (min.) | 60 | mm | Diameter of shaft abutment |
| Da (max.) | 82 | mm | Diameter of housing abutment |
| rb (max.) | 1.5 | mm | Radius of shaft or housing fillet |
| ra (max.) | 1.5 | mm | Radius of shaft or housing fillet |
| Mass approx. | 0.696 | 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
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.4 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Hyena Proof
Color: Acorn - Large, Size: Large
I have an American Bulldog that would chew a brick if he didn’t have an alternative lying around. They won’t last forever (nothing does) but we’ve had two of these over the course of a year and for him that is nothing short of a miracle. And that is daily chewing like it’s his job. I highly recommend the Acornucopia for aggressive chewers with jaws like hyenas…so it’s probably great for your dog too.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Love Barkbox!
Color: Comet - Small, Size: Small
I can't recommend Barkbox Super Chewer dog toys enough for those that have a pet that loves to chew. They are durable!!
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Reviewed in the United States on April 24, 2026
★★★★★ 5
This is an awesome product and affordably priced! I'll buy more in the future!
Color: Comet - Small, Size: Small
This is a great ball for my dog Polly! It doesn't stink or have any weird oils on the ball. It is definitely durable. It has a nice chirping sound and it's great exercise for my dog's jaws. It's not too bouncy and it's the perfect weight that she feels satisfied having in her mouth and when she catches it in mid-air. It's not too heavy that I have to worry about it knocking her teeth out. I almost cancelled the order after I found out the size of the ball, I thought it was a larger ball that Bark makes. It turns out it is larger than a tennis ball which is what I wanted. Someone gave us a black, knobby, ball that is 12.5 inches in diameter and she absolutely loves it, it's her favorite ball. It's the perfect size for her American Pit Bull mouth! I cannot find this product anywhere or a comparable alternative that's the same size. If you know where I can purchase another ball that I've described @ 12.5 in. diameter, please let me know! I'll likely buy this ball that was just delivered, today, in the future, if it's not discontinued! It's a great deal for only $14.99!! Thanks from a happy satisfied customer, V.B.
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Reviewed in the United States on April 23, 2024
★★★★★ 5
First toy he CANNOT destroy in minutes!!!
Color: Comet - Small, Size: Small, Color: Comet - Small, Size: Small
Only ball he has not destroyed in minutes!!! So good that I purchased a second one for travel. It keeps him busy and tires him out because he cannot break it!😆
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Reviewed in the United States on January 23, 2026
★★★★★ 4
Sort of good for tough chewers??
Color: Deep Roots Carrot - Small, Size: Small Dog
The actual carrot part (orange part) is tough chewer approved and my dog loves. It’s basically the same shape and size as his kong. However the leaves (green part) is not tough chewer approved. He ripped ALL those leaves off and ate them within 5 minutes of me giving him the toy. However they passed through him fine.
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Reviewed in the United States on June 8, 2025