Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
21320CAME4 NSK21320CAME4 d 100 mm Bore diameter D 215 mm Outside diameter B 47 mm Width r (min.) 3 mm Chamfer dimension Cr 495000 N Basic dynamic load rating C0r 485000 N Basic static load rating Thermal Speed Rating (Oil bath) 3400 min 1 Oil bath lubrication subject to conditions outlined in ISO 15312 Mechanical (forced circulation oil) 4500 min 1 Properly designed and controlled forced circulation oil lubrication Grease 1400 min 1 Grease lubrication Oil (Oil
| 21320CAME4 |
| d | 100 | mm | Bore diameter |
| D | 215 | mm | Outside diameter |
| B | 47 | mm | Width |
| r (min.) | 3 | mm | Chamfer dimension |
| Cr | 495000 | N | Basic dynamic load rating |
| C0r | 485000 | N | Basic static load rating |
| Thermal Speed Rating (Oil-bath) | 3400 | min-1 | Oil-bath lubrication subject to conditions outlined in ISO 15312 |
| Mechanical (forced-circulation oil) | 4500 | min-1 | Properly designed and controlled forced-circulation oil lubrication |
| Grease | 1400 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 1900 | min-1 | Oil-bath lubrication |
| da (min.) | 114 | mm | Diameter of shaft abutment (min) |
| da (max.) | 0 | mm | Diameter of shaft abutment |
| Da (min.) | 184 | mm | Diameter of housing abutment |
| Da (max.) | 201 | mm | Diameter of housing abutment |
| ra (max.) | 2.5 | 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. | 8.46 | 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 1923 reviews
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Product Reviews
★★★★★ 5
Fast Working
Size: 100 Count (Pack of 1), Style: Melatonin 1mg
I have a hard time staying asleep. I took this product the first day and slept very well. I would recommend this highly. Dissolves Faunder the tongue and works sooner than capsules or pills.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
★★★★★ 5
Melatonin by Superior Source
Size: 100 Count (Pack of 1), Style: Melatonin 1mg
I've bought this melatonin repeatedly for years. It works gently and naturally to help me drift off to sleep and wake rested and ready for the day. I always get the smallest dose 1 mg
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2025
★★★★★ 4
So far it does help me with becoming drowsy for sleep
Size: 100 Count (Pack of 1), Style: Melatonin 1mg
So far this melatonin helps with making me drowsy, but I still take 1/2 a prescribed sleeping pill with it. Normally, within a half hour I am sleepy. I have not tried taking it by itself yet. I am a petite build, so I think my size factors in to how well it works for me. Flavor is okay. Easy to take melting it under my tongue. Price is okay. I like that it is sublingual and limited added ingredients. I don't usually take chamomile due to being sensitive to it in the past, but seems to be okay in this pill. It also seems to help me with staying asleep for a longer period of time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2022
★★★★★ 5
Aids my sleep w/o grogginess the next day!!
Size: 100 Count (Pack of 1), Style: Melatonin 1mg
Superior Source has been a game changer in being part of my sleep aid supplements! My physician recommended this brand and dosage and I'm grateful!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
Works well.
Size: 100 Count (Pack of 1), Style: Melatonin 1mg
Works well!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
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