The Timken Company - Aurora Bearing AJB-TFA/ -TFC Flanged Journal Bearings SAE-AS81934/2

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Material:

"TFA" - Aluminum Alloy per AMS-QQ-A-200/3 or AMS-QQ-A-225/6 (2024-T851 or 2024-T8511) - chemical film treatment per MIL-DTL-5541- AT 3200 Bearing Liner System, permanently bonded to bearing inside diameter and flange face. Qualified to SAE-AS81820 Type A.
"TFC" - Corrosion Resistant Steel, AMS 5643 (17-4 PH) Condition H-1150 per AMS-H-6875 - passivated per AMS 2700 method 1, type 2 or type 8, or ASTM A 967 - AT 3200 Bearing Liner System, permanently bonded to bearing inside diameter and flange face. Qualified to SAE-AS81820 Type A.

Options:

"P" indicates cadmium plating per AMS-QQ-P-416 Class 2, Type II (17-4 PH only)(ex.: AJB-4TFC-008P)
"E" indicates Zinc-Nickel plating per AMS 2417 Type 2 (17-4 PH only) (ex.: AJB-4TFC-008E)
"D1" indicates a .010" oversize outside diameter (ex.: AJB-4TFA-008D1)
"D2" indicates a .020" oversize outside diameter (ex.: AJB-4TFA-008D2)

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Unit of Measure

Items	AJB-4TFA-005 Aurora Bearing AJB-TFA/ -TFC Flanged Journal Bearings SAE-AS81934/2	AJB-4TFA-005D1 Aurora Bearing AJB-TFA/ -TFC Flanged Journal Bearings SAE-AS81934/2	AJB-4TFA-005D2 Aurora Bearing AJB-TFA/ -TFC Flanged Journal Bearings SAE-AS81934/2	AJB-4TFC-005 Aurora Bearing AJB-TFA/ -TFC Flanged Journal Bearings SAE-AS81934/2	AJB-4TFC-005D1 Aurora Bearing AJB-TFA/ -TFC Flanged Journal Bearings SAE-AS81934/2
SAE Part Number	N/A M81934/2-04A005	N/A M81934/2-04A005T	N/A M81934/2-04A005U	N/A M81934/2-04C005	N/A M81934/2-04C005T
Nominal Size	N/A 1/4	N/A 1/4	N/A 1/4	N/A 1/4	N/A 1/4
B - Bore Diameter	N/A .2515 in	N/A .2515 in	N/A .2515 in	N/A .2515 in	N/A .2515 in
D - Outside Diameter	N/A .3760 in	N/A .3860 in	N/A .3960 in	N/A .3760 in	N/A .3860 in
H - Flange Diameter	N/A .750 in	N/A .750 in	N/A .750 in	N/A .750 in	N/A .750 in
W - Flange Width	N/A .0625 in	N/A .0625 in	N/A .0625 in	N/A .0625 in	N/A .0625 in
L - Sleeve Length	N/A .156 in	N/A .156 in	N/A .156 in	N/A .156 in	N/A .156 in
Material	N/A Aluminum	N/A Aluminum	N/A Aluminum	N/A Stainless Steel	N/A Stainless Steel
Sleeve Weight (L-1.00)	N/A .006 lb/in	N/A .006 lb/in	N/A .006 lb/in	N/A .016 lb/in	N/A .016 lb/in
Flange Weight	N/A .002 lb	N/A .002 lb	N/A .002 lb	N/A .006 lb	N/A .006 lb
Total Weight	N/A .0029 lb	N/A .0029 lb	N/A .0029 lb	N/A .0085 lb	N/A .0085 lb