Description

M-643AS (28

9 20 30 36 13 15 4 5

internal clearance

Tough is different from the average body

CITIZEN Signal Indicators TRI-METRON

NSK Cylindrical Roller Bearings, Single-Row N-Type, N228W ,D=140 junghwa M-643AS (28NSK Cylindrical Roller Bearings, Single Row N Type, N228W ,D=140 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min 1) Mass (kg) approx. d D B r min. r1 min. Fw Ew Cr C0r Thermal Reference Mechanical Grease Oil N228W 140 250 42 3 3 221 297 375 3400 2000 2400 8. 09 DESIGN, TYPES, AND FEATURES Cylindrical roller bearings are classified into the following types depending on whether or not they have ribs on their rings:

Exchange/Return Notes

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NSK Cylindrical Roller Bearings, Single-Row N-Type, N228W ,D=140 junghwa M-643AS (28

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