PartsTable
Technical Data Sheet
121-0037 ✓ Verified by PartsTable
3M · 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

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This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-120-3080, 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
121-0037
NSN: 3110-00-120-3080
FSC: 3110
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter0.3125 INCHES NOMINAL IN
overall_width0.5625 INCHES NOMINAL IN
alignment_typeRIGID
surface_finishGROUND
style_designatorSEPARABLE ROLLERS, NO INNER RACE, HARDENED AND GROUND
lubrication_materialGREASE
overall_outside_diameter0.5000 INCHES NOMINAL IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-120-3080
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 121-0037 · 3M ⚠ 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
STYLE DESIGNATOR: SEPARABLE ROLLERS, NO INNER RACE, HARDENED AND GROUND
MATERIAL: STEEL OVERALL
OVERALL OUTSIDE DIAMETER: 0.5000 INCHES NOMINAL IN
ALIGNMENT TYPE: RIGID
BORE DIAMETER: 0.3125 INCHES NOMINAL IN
SURFACE FINISH: GROUND
LUBRICATION MATERIAL: GREASE
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSEPARABLE ROLLERS, NO INNER RACE, HARDENED AND GROUND
MATERIALSTEEL OVERALL
OVERALL OUTSIDE DIAMETER0.5000 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
OVERALL WIDTH0.5625 INCHES NOMINAL IN
BORE DIAMETER0.3125 INCHES NOMINAL IN
SURFACE FINISHGROUND
LUBRICATION MATERIALGREASE
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
GB66Interchangeable
interchangeable cross-reference
interchangeable
B59Interchangeable
interchangeable cross-reference
interchangeable
NAS295-6AInterchangeable
interchangeable cross-reference
interchangeable
BX59Interchangeable
interchangeable cross-reference
interchangeable
90500Interchangeable
interchangeable cross-reference
interchangeable
C01032Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121-0037?
121-0037 is a BEARING,ROLLER,NEEDLE manufactured by 3M.
What parts can replace 121-0037?
There are 20 known substitutes for 121-0037: GB66, B59, NAS295-6A and 17 more. Substitute compatibility should be verified for your specific system.
Is 121-0037 still available?
121-0037 is currently cancelled.
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