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NACHI America
High Capacity Cylindrical Roller Bearings EG Series

High Capacity Cylindrical Roller Bearings EG Series

Product catalog summary

Overview: The document provides detailed specifications and performance characteristics of the NACHI EG Series high capacity cylindrical roller bearings. These bearings are designed to offer enhanced load capacity, reliability, and operational efficiency.

Specifications: The EG Series bearings feature larger diameter rollers and increased length to maximize load capacity while maintaining standard boundary dimensions. The document includes a comprehensive table of boundary dimensions, dynamic and static load ratings, and speed ratings for various bearing models.

Design Features: The EG Series incorporates NACHI EXCEL CROWNING, which optimizes internal geometry for improved contact between rollers and raceways under different loading conditions. This design contributes to higher reliability and allows for more compact bearing arrangements.

Performance Benefits: The use of a glass reinforced nylon cage in the EG Series results in lower noise and reduced heat generation during operation. This design is particularly beneficial for grease-lubricated applications, offering low temperature operation.

Comparative Analysis: The document compares the performance of the EG Series with conventional designs using pressed steel cages. The EG Series demonstrates superior service life and lower failure rates under test conditions involving varying speeds and radial loads.

Test Results: The document includes test evaluations for the NU307EG model, highlighting its extended service life and reduced temperature rise compared to other nylon cage designs. Test conditions involved rotating speeds between 2000 and 12000 min-1 and radial loads of 11800N.

Recommendations: For applications requiring high load capacity and reliability, the EG Series is recommended due to its optimized design and material advantages. The document advises considering the EG Series for both new designs and upgrades to existing bearing arrangements.

Catalog excerpts

High Capacity Cylindrical Roller Bearings EG Series-1

Cylindrical Roller Bearings High Capacity Cylindrical Roller Bearings EG Series

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High Capacity Cylindrical Roller Bearings EG Series-2

High Capacity < Weibull Distribution Chart > 97.5 90 Failure Ratio (%) Large Rollers Provide High Load Capacity, Low Temperature Rise and Long Life High Capacity Cylindrical Roller Bearings EG Series Test evaluation for high capacity cylindrical roller bearing (EG-Series) ● Test conditions (1) Test bearing NU307 (Pressed Steel Cage) NU307EG (Glass Reinforced Nylon Cage) (2) Rotating Speed : 2000 min-1 (3) Radial Load : 19600 N (4) Lubricating Oil : 75W10 (Oil Bath) ● Calculated and measured service life NACHI EG series of cylindrical roller bearings have maximized load capacity for the same standard...

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High Capacity Cylindrical Roller Bearings EG Series-3

NACHI-FUJIKOSHI CORP. URL:http:/Avww.nachi-f ujikoshi.co.jp Tokyo Head Office : Shiodome Sumitomo Bldg. 17F 1-9-2 Higashi-shinbashi, Minato-ku, Tokyo 105-0021, Japan Tbyama Head Office : 1-1-1 Fujikoshi-Honmachi, Toyama, Japan 930-8511 Phone: +81-(0)76-423-5111 Fax. +81-(0)76-493-5211 Overseas Sales Companies • NACHI AMERICA 17500 Twenty-Three Mile Road, Macomb, INDIANA BRANCH 715 Pushville Road, Greenwood, Indiana, 46143, WEST COAST BRANCH 12652 E. Alondra Blvd. Cerritos, California, 90703, MIAMI BRANCH - LATIN AMERICA DIV. ATLANTA SALES OFFICE Six Concourse Parkway, Suite 2995 Atlanta, GA •...

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High Capacity Cylindrical Roller Bearings EG Series

High Capacity Cylindrical Roller Bearings EG Series

Catalog excerpts

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