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Technical Data Sheet
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M88048 — 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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL OVERALL, cone_width: 0.8750 INCHES NOMINAL IN, bore_diameter: 1.3125 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.0310 INCHES NOMINAL IN, end_item_identification: AC-130W 105 G W. This part is cataloged in the Federal Logistics Information System under NSN 3110-00-768-0546, 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
M88048
NSN: 3110-00-768-0546
FSC: 3110
CAGE: 51588 — RBC BEARINGS INCORPORATED DIV WEST TRENTON DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width0.8750 INCHES NOMINAL IN
bore_diameter1.3125 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.0310 INCHES NOMINAL IN
end_item_identificationAC-130W 105 G W
standard_tolerance_designationAFBMA CLASS 2
part_name_assigned_by_controlling_agencyCONE-TAPERED ROLLER BEARING
NSN3110-00-768-0546
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M88048 · 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 OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
CONE WIDTH: 0.8750 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.0310 INCHES NOMINAL IN
•
BORE DIAMETER: 1.3125 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
CONE WIDTH0.8750 INCHES NOMINAL IN
CONE CORNER RADIUS0.0310 INCHES NOMINAL IN
BORE DIAMETER1.3125 INCHES NOMINAL IN
SPECIAL FEATURESDUTY CLASS M SERIES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
A200248ZInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7450984InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
70632466InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
317213-5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
447.082InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
ED00447A0820-S OR 447A-82InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M88048?
M88048 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace M88048?
There are 18 known substitutes for M88048: A200248Z, 7450984, 70632466 and 15 more. Substitute compatibility should be verified for your specific system.
Is M88048 still available?
M88048 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026