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Technical Data Sheet
PartsTable / COMPONENT / IR30070
IR30070 ✓ Verified by PartsTable
— · 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 RING,BEARING,INNER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 2.6460 INCHES MINIMUM AND 2.6470 INCHES MAXIMUM IN, overall_width: 2.4900 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN, surface_finish: GROUND, style_designator: SOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-289-6758, 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
IR30070
NSN: 3110-00-289-6758
FSC: 3110
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter2.6460 INCHES MINIMUM AND 2.6470 INCHES MAXIMUM IN
overall_width2.4900 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN
surface_finishGROUND
style_designatorSOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
overall_outside_diameter3.0598 INCHES MINIMUM AND 3.0607 INCHES MAXIMUM IN
NSN3110-00-289-6758
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: IR30070 · 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
•
BORE SHAPE: STRAIGHT
•
OVERALL OUTSIDE DIAMETER: 3.0598 INCHES MINIMUM AND 3.0607 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
•
BORE DIAMETER: 2.6460 INCHES MINIMUM AND 2.6470 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
BORE SHAPESTRAIGHT
OVERALL OUTSIDE DIAMETER3.0598 INCHES MINIMUM AND 3.0607 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
OVERALL WIDTH2.4900 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN
BORE DIAMETER2.6460 INCHES MINIMUM AND 2.6470 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
00044Interchangeable
interchangeable cross-reference
interchangeable
436W3M1Interchangeable
interchangeable cross-reference
interchangeable
70655Interchangeable
interchangeable cross-reference
interchangeable
30070Interchangeable
interchangeable cross-reference
interchangeable
300070Interchangeable
interchangeable cross-reference
interchangeable
CX8739ARM63Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is IR30070?
IR30070 is a RING,BEARING,INNER.
What parts can replace IR30070?
There are 15 known substitutes for IR30070: 00044, 436W3M1, 70655 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for IR30070?
IR30070 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-289-6758. 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: July 2026