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Description
hr30211j nskHR30211J ISO 3DB ISO355 dimension series approx. d 55 mm Bore diameter D 100 mm Outside diameter T 22. 75 mm Total width B 21 mm Width of inner ring C 18 mm Width of outer ring Cup r (min.) 1. 5 mm Chamfer dimension of outer ring (Cup) Cone r (min.) 2 mm Chamfer dimension of inner ring (Cone) Cr 116000 N Basic dynamic load rating C0r 113000 N Basic static load rating Grease 3600 min 1 Grease lubrication Oil (Oil bath) 5000 min 1 Oil bath lubrication a
| HR30211J |
| ISO | 3DB | ISO355 dimension series approx. |
| d | 55 | mm | Bore diameter |
| D | 100 | mm | Outside diameter |
| T | 22.75 | mm | Total width |
| B | 21 | mm | Width of inner ring |
| C | 18 | mm | Width of outer ring |
| Cup r (min.) | 1.5 | mm | Chamfer dimension of outer ring (Cup) |
| Cone r (min.) | 2 | mm | Chamfer dimension of inner ring (Cone) |
| Cr | 116000 | N | Basic dynamic load rating |
| C0r | 113000 | N | Basic static load rating |
| Grease | 3600 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 5000 | min-1 | Oil-bath lubrication |
| a | 20.9 | mm | Effective load center |
| da (min.) | 67 | mm | Diameter of shaft abutment (min) |
| Db (min.) | 94 | mm | Diameter of housing abutment |
| Da (min.) | 89 | mm | Diameter of housing abutment |
| Da (max.) | 91 | mm | Diameter of housing abutment |
| Sa | 4 | mm | Minimum width of space required in housing on large side face |
| Sb | 4.5 | mm | Minimum width of space required in housing on small side face |
| db (max.) | 64 | mm | Diameter of shaft abutment |
| ra (max.) | 2 | mm | Radius of shaft or housing fillet of inner ring |
| ra (max.) | 1.5 | mm | Radius of shaft or housing fillet of outer ring |
| e | 0.41 | Constant | |
| Y0 | 0.81 | Axial load Factors | |
| Y1 | 1.5 | Axial load Factors |
| Mass approx. | 0.736 | kg | Mass approx. |
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4.8 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Excellent pre WW2 Churchill primer.
Format: Hardcover
This author has done an excellent job of explaining the role Churchill played in preparing Britain for WW2 despite being out of government for most of the 1930’s. The author is a curator and historian who has managed the collections at Chartwell, Churchill’s home during that time. Very well researched and easy to read. Anyone who studies 20th Century European history needs to read this book.
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Reviewed in the United States on February 6, 2025
★★★★★ 4
Book for Churchill fans
Format: Hardcover
Not an introduction to Churchill but fills out a period of his life that is often overlooked. Some fascinating insights into people who visited Chartwell. I really enjoyed this book, but it's not for everyone.
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Reviewed in the United States on February 7, 2025
★★★★★ 5
An excellent addition to the library of books about the life of Churchill.
Format: Hardcover
Excellent story of Churchill's years in the wilderness, warning of the growing threat of Nazi Germany from 1932 to the early of the war. Thoroughly researched and well written, given the complexities of what was going on contemporaneously.
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Reviewed in the United States on February 10, 2025
★★★★★ 5
Just like the PBS series....
Format: Hardcover
This book is a step, or two, deeper into the 'wilderness years' than the PBS series by the same name. But frankly, the series, available on YouTube, is a better buy (it's free) for the money and quite entertaining due to its great casting with folks like Robert Hardy, Sian Phillips, and Eric Porter. But, if you're a reader, this book is worth the effort and cost.
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Reviewed in the United States on March 6, 2025
★★★★★ 5
A great book about a great estate and the great man who inhabited it.
Format: Kindle
Carter does a superb job of accurately recounting the history of Chartwell and the people and events that made it such a special place.
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Reviewed in the United States on June 20, 2025