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7451870 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

7451870: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 1.2369 INCHES MINIMUM AND 1.2375 INCHES MAXIMUM IN, overall_width: 0.7600 INCHES MINIMUM AND 0.7650 INCHES MAXIMUM IN, surface_finish: GROUND, locating_feature: NONLOCATING. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-020-9786, 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
7451870
NSN: 3110-01-020-9786
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter1.2369 INCHES MINIMUM AND 1.2375 INCHES MAXIMUM IN
overall_width0.7600 INCHES MINIMUM AND 0.7650 INCHES MAXIMUM IN
surface_finishGROUND
locating_featureNONLOCATING
style_designatorSOLID OUTER RACE, NO INNER RACE
overall_outside_diameter2.0465 INCHES MINIMUM AND 2.0472 INCHES MAXIMUM IN
retainer_fabrication_methodSTAMPED
standard_tolerance_designationRBEC NO.1
NSN3110-01-020-9786
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 7451870 · 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
•
RETAINER FABRICATION METHOD: STAMPED
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: SOLID OUTER RACE, NO INNER RACE
•
OVERALL OUTSIDE DIAMETER: 2.0465 INCHES MINIMUM AND 2.0472 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODSTAMPED
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
STYLE DESIGNATORSOLID OUTER RACE, NO INNER RACE
OVERALL WIDTH0.7600 INCHES MINIMUM AND 0.7650 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER2.0465 INCHES MINIMUM AND 2.0472 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER1.2369 INCHES MINIMUM AND 1.2375 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 1
1581-TSReference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 7451870?
7451870 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 7451870?
There is 1 known substitute for 7451870: 1581-TS. Substitute compatibility should be verified for your specific system.
What is the NSN for 7451870?
7451870 is cataloged in the U.S. Government catalog under NSN 3110-01-020-9786. 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.