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0R307 — RING,BEARING,OUTER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

0R307: RING,BEARING,OUTER.

The RING,BEARING,OUTER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 2.7500 INCHES NOMINAL IN, overall_width: 1.3750 INCHES NOMINAL IN, surface_finish: GROUND, special_features: OUTSIDE DIAMETER CHAMFERED AND OIL HOLES, style_designator: SOLID OUTER RACE, JOURNAL AND NEEDLE. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-156-8426, 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
0R307
NSN: 3110-00-156-8426
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 51588 — RBC BEARINGS INCORPORATED DIV WEST TRENTON DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter2.7500 INCHES NOMINAL IN
overall_width1.3750 INCHES NOMINAL IN
surface_finishGROUND
special_featuresOUTSIDE DIAMETER CHAMFERED AND OIL HOLES
style_designatorSOLID OUTER RACE, JOURNAL AND NEEDLE
overall_outside_diameter80.00 MILLIMETERS NOMINAL MM
standard_tolerance_designationAFBMA STD TOLERANCES FOR JOURNAL BEARINGS
NSN3110-00-156-8426
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 0R307 · 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
KEY FEATURES
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: SOLID OUTER RACE, JOURNAL AND NEEDLE
•
OVERALL OUTSIDE DIAMETER: 80.00 MILLIMETERS NOMINAL MM
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCES FOR JOURNAL BEARINGS
•
BORE DIAMETER: 2.7500 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISHGROUND
STYLE DESIGNATORSOLID OUTER RACE, JOURNAL AND NEEDLE
OVERALL WIDTH1.3750 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER80.00 MILLIMETERS NOMINAL MM
SPECIAL FEATURESOUTSIDE DIAMETER CHAMFERED AND OIL HOLES
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCES FOR JOURNAL BEARINGS
BORE DIAMETER2.7500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
C337Reference document
Same NSN cross-reference
Reference document — Secondary reference
W0R208Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 0R307?
0R307 is a RING,BEARING,OUTER.
What parts can replace 0R307?
There are 2 known substitutes for 0R307: C337, W0R208. Substitute compatibility should be verified for your specific system.
What is the NSN for 0R307?
0R307 is cataloged in the U.S. Government catalog under NSN 3110-00-156-8426. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.