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Technical Data Sheet
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TJ74986-10/IR74986 — Technical Data Sheet

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— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 4.5000 INCHES NOMINAL IN, overall_width: 2.0100 INCHES NOMINAL IN, alignment_type: RIGID, surface_finish: GROUND, special_features: OIL HOLE AND GROOVE IN OUTER RACE AND OIL HOLE IN INNER RACE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-151-9395, 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
TJ74986-10/IR74986
NSN: 3110-00-151-9395
FSC: 3110
CAGE: 51588 — RBC BEARINGS INCORPORATED DIV WEST TRENTON DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter4.5000 INCHES NOMINAL IN
overall_width2.0100 INCHES NOMINAL IN
alignment_typeRIGID
surface_finishGROUND
special_featuresOIL HOLE AND GROOVE IN OUTER RACE AND OIL HOLE IN INNER RACE
style_designatorSEPARABLE OUTER RACE, HARDENED AND GROUND
overall_outside_diameter6.0000 INCHES NOMINAL IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-151-9395
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: TJ74986-10/IR74986 · 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
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
MATERIAL: STEEL OVERALL
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 6.0000 INCHES NOMINAL IN
•
BORE DIAMETER: 4.5000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SEPARABLE OUTER RACE, HARDENED AND GROUND
TECHNICAL CHARACTERISTICS
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
MATERIALSTEEL OVERALL
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER6.0000 INCHES NOMINAL IN
BORE DIAMETER4.5000 INCHES NOMINAL IN
STYLE DESIGNATORSEPARABLE OUTER RACE, HARDENED AND GROUND
OVERALL WIDTH2.0100 INCHES NOMINAL IN
SPECIAL FEATURESOIL HOLE AND GROOVE IN OUTER RACE AND OIL HOLE IN INNER RACE
ALIGNMENT TYPERIGID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
052056-01InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
708265InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
708265-001InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
F777AInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
SK6691InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
3110001519395InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TJ74986-10/IR74986?
TJ74986-10/IR74986 is a BEARING,ROLLER,NEEDLE.
What parts can replace TJ74986-10/IR74986?
There are 8 known substitutes for TJ74986-10/IR74986: 052056-01, 708265, 708265-001 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TJ74986-10/IR74986?
TJ74986-10/IR74986 is cataloged in the Federal Logistics Information System under NSN 3110-00-151-9395. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026