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Technical Data Sheet
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50280-3770-4 — RING,BEARING,INNER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

50280-3770-4: RING,BEARING,INNER.

The RING,BEARING,INNER is a the manufacturer industrial component. Key specifications include end_item_identification: MRG,STB, part_name_assigned_by_controlling_agency: JOURNAL BEARING,GT PINION,ELLIPTICAL. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-732-4526, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
50280-3770-4
NSN: 3110-01-732-4526
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 17454 — TIMKEN GEARS & SERVICES INC. DIV PHILADELPHIA GEAR (USA)
SPECIFICATIONS
special_featuresJOURNAL BEARING GT PINION,ELLIPTICAL,WHICH CONSISTES OF BABBIT AS REQUIRED, D,1/4 X 1/2 STEEL DOWEL,RTD CONNECTOR,POTTING COMP,1/2 X 3/4 STEEL DOWEL
end_item_identificationMRG,STB
part_name_assigned_by_controlling_agencyJOURNAL BEARING,GT PINION,ELLIPTICAL
NSN3110-01-732-4526
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 50280-3770-4 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 2
01070-0522 REV D ITEM 19Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
50280-3770 REV BReference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 50280-3770-4?
50280-3770-4 is a RING,BEARING,INNER.
What parts can replace 50280-3770-4?
There are 2 known substitutes for 50280-3770-4: 01070-0522 REV D ITEM 19, 50280-3770 REV B. Substitute compatibility should be verified for your specific system.
What is the NSN for 50280-3770-4?
50280-3770-4 is cataloged in the U.S. Government catalog under NSN 3110-01-732-4526. This indicates validated use in U.S. government and defense supply chains.
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