BEARING
P/N 748015
P/N 488672
P/N 771872
NSN 3110 00 103 7244
MFG UNITED TECHNOLOGIES
 
AS Removed Condition 
SUPPLIER CAGE CODE 03EF7
 
ITEM NAME   BEARING,ROLLER,CYLI
DEFINITION  A nonadjustable roller bearing consisting of a single or multiple-row
             of hardened cylindrical rollers and a retainer used with or without
             inner or outer rings. Excludes BEARING, ROLLER, AIRFRAME.
            
 
CHARACTERISTIC                          VALUE
BORE DIAMETER                           5.1177 INCHES MINIMUM AND 5.1181 INCHES MAXIMUM  
OVERALL OUTSIDE DIAMETER                7.0861 INCHES MINIMUM AND 7.0866 INCHES MAXIMUM  
OUTER RING WIDTH                        0.8611 INCHES MINIMUM AND 0.8661 INCHES MAXIMUM  
INNER RING WIDTH                        1.0186 INCHES MINIMUM AND 1.0236 INCHES MAXIMUM  
SURFACE FINISH                          GROUND                                           
RETAINER FABRICATION METHOD             FORGED                                           
BORE SHAPE                              STRAIGHT                                         
LOCATING FEATURE                        NONLOCATING                                      
INTERNAL CLEARANCE                      0.0036 INCHES MINIMUM RADIAL AND 0.0052 INCHES   
                                        MAXIMUM RADIAL                                   
STANDARD TOLERANCE                      RBEC NO.5                                        
DESIGNATION                                                                               
SPECIAL FEATURES                        SILVER PLATE CAGE PER AMS 2412 0.0005-0.0015 THK 
                                        ON LAND RIDING SURF AND ROLLER POCKETS NO STRIKE 
                                        METAL REQD BAKE 475-500F FOR 2 HRS TO CHECK FOR  
                                        BOND                                             
MATERIAL                                STEEL INNER RING STEEL OUTER RING COPPER ALLOY   
                                        RETAINER STEEL ROLLER                            
MATERIAL DOCUMENT AND                   PWA-742,97497 MFR REF 2ND MATERIAL RESPONSE INNER
CLASSIFICATION                          RING PWA-742,97497 MFR REF 1ST MATERIAL RESPONSE 
                                        OUTER RING PWA-742,97497 MFR REF 3RD MATERIAL    
                                        RESPONSE ROLLER                                  
DESIGN CONTROL REFERENCE                771872                                           
THE MANUFACTURERS DATA                  77445                                            
MANUFACTURERS CODE                                                                       
STYLE DESIGNATOR                        SOLID INNER AND OUTER RACES