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Technical Data Sheet
PartsTable / COMPONENT / BU1308
BU1308 ✓ 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 BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL INNER RING, bore_shape: STRAIGHT, surface_finish: GROUND, locating_feature: NONLOCATING, special_features: INNER RING AND ROLLER ASSY,NO OUTER RING, internal_fit-up_designation: STANDARD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-117-0683, 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
BU1308
NSN: 3110-00-117-0683
FSC: 3110
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialSTEEL INNER RING
bore_shapeSTRAIGHT
surface_finishGROUND
locating_featureNONLOCATING
special_featuresINNER RING AND ROLLER ASSY,NO OUTER RING
internal_fit-up_designationSTANDARD
standard_tolerance_designationRBEC NO.1
NSN3110-00-117-0683
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: BU1308 · 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
•
MATERIAL: STEEL INNER RING
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
BORE SHAPE: STRAIGHT
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL INNER RING
MATERIALSTEEL ROLLER
SPECIAL FEATURESINNER RING AND ROLLER ASSY,NO OUTER RING
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
INTERNAL FIT-UP DESIGNATIONSTANDARD
BORE SHAPESTRAIGHT
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
TOMACInterchangeable
interchangeable cross-reference
interchangeable
11888Interchangeable
interchangeable cross-reference
interchangeable
60872-302Interchangeable
interchangeable cross-reference
interchangeable
24063Interchangeable
interchangeable cross-reference
interchangeable
030821Interchangeable
interchangeable cross-reference
interchangeable
111-005-001-08Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BU1308?
BU1308 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace BU1308?
There are 13 known substitutes for BU1308: TOMAC, 11888, 60872-302 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BU1308?
BU1308 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-117-0683. 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