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Description
NU208 ET NSKNU208ET d 40 mm Bore diameter D 80 mm Outside diameter B 18 mm Width FW 49. 5 mm Raceway diameter of inner ring r (min.) 1. 1 mm Chamfer dimension r1 (min.) 1. 1 mm Chamfer dimension Cr 68500 N Basic dynamic load rating C0r 55500 N Basic static load rating Thermal Speed Rating (Oil bath) 9000 min 1 Oil bath lubrication subject to conditions outlined in ISO 15312 Mechanical (forced circulation oil) 11000 min 1 Properly designed and controlled forced
| NU208ET |
| d | 40 | mm | Bore diameter |
| D | 80 | mm | Outside diameter |
| B | 18 | mm | Width |
| FW | 49.5 | mm | Raceway diameter of inner ring |
| r (min.) | 1.1 | mm | Chamfer dimension |
| r1 (min.) | 1.1 | mm | Chamfer dimension |
| Cr | 68500 | N | Basic dynamic load rating |
| C0r | 55500 | N | Basic static load rating |
| Thermal Speed Rating (Oil-bath) | 9000 | min-1 | Oil-bath lubrication subject to conditions outlined in ISO 15312 |
| Mechanical (forced-circulation oil) | 11000 | min-1 | Properly designed and controlled forced-circulation oil lubrication |
| Grease | 7500 | min-1 | Grease lubrication |
| Oil (Oil-bath) | 9000 | min-1 | Oil-bath lubrication |
| da (min.) | 46.5 | mm | Diameter of shaft abutment (min) |
| db (min.) | 46.5 | mm | Diameter of shaft / spacer sleeve abutment |
| db (max.) | 48 | mm | Diameter of shaft / spacer sleeve abutment |
| dc (min.) | 52 | mm | Diameter of shaft abutment |
| dd (min.) | 56 | mm | Diameter of shaft abutment |
| Da (max.) | 73.5 | mm | Diameter of housing abutment |
| rb (max.) | 1 | mm | Radius of shaft or housing fillet |
| ra (max.) | 1 | mm | Radius of shaft or housing fillet |
| Mass approx. | 0.368 | kg | Mass approx. |
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4.6 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Underwriting Multifamily
Format: Kindle
This book deserve a five star rating. It uses practical examples easy to follow. This well written book easy to understand. I recommend this book to any real estate investor.
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Reviewed in the United States on December 20, 2024
★★★★★ 5
Must Have Book for Investors or Sponsors/GPs wanting to Invest in Multifamily Properties!
Format: Paperback
If you understand the math and numbers associated with investing in real estate, this book will help you underwrite any multifamily property. Not only does Robert's book discuss how to gather the information needed for underwriting, he goes into detail on how sponsors can manipulate the numbers. This is a great book for knowledge on the pros and cons of varied partnership structures and how each can create an alignment of interest between limited partners (LPs) and general partners (GPs). Overall, this is a great easy read book.
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Reviewed in the United States on September 13, 2020
★★★★★ 4
Basic knowledge of underwriting is necessary to understand.
Format: Paperback
This is a great guide for underwriting multifamily deals for someone with some basic to moderate knowledge of underwriting. I am a new student to this field and have to stop and google some of the acronyms. For a future version, I think adding an extra page for the acronyms used, definition and equation would be helpful. I think that the font could be larger and darker. Adding mathematical formulas in the book would provide visualization as well. Rob can also provide a sample OM for the reader to use with his underwriting model and compare to his completed one. Again, I am a newbie so my review may change as I gain knowledge in this area. I enjoyed listening to Rob on Youtube/Podcast and hope to learn more from him.
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Reviewed in the United States on July 27, 2020
★★★★★ 5
Easy to understand and well organized
Format: Paperback
Author makes complex concepts feel approachable and easy to comprehend. The content is sufficient to be an introductory course
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Reviewed in the United States on October 22, 2025
★★★★★ 5
great read for underwriters of multifamily deals
Format: Kindle
Rob lays out a succinct and thorough summary of his underwriting process, questions industry standards while sharing his opinions, and discusses risk management and analyses for deals during the underwriting process. Highly recommend for newer and more seasoned underwriters and investors to build or sharpen multifamily underwriting fundamentals and details. He also shares his model as the example.
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Reviewed in the United States on September 27, 2023