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Technical Data Sheet
PartsTable / COMPONENT / A984-1
A984-1 ✓ 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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL OVERALL, body_width: 0.310 INCHES MAXIMUM IN, cone_width: 1.0594 INCHES NOMINAL IN, body_height: 0.185 INCHES MAXIMUM IN, body_length: 1.060 INCHES MAXIMUM IN, bore_diameter: 1.8750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-987-0630, 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
A984-1
NSN: 3110-00-987-0630
FSC: 3110
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_width0.310 INCHES MAXIMUM IN
cone_width1.0594 INCHES NOMINAL IN
body_height0.185 INCHES MAXIMUM IN
body_length1.060 INCHES MAXIMUM IN
bore_diameter1.8750 INCHES NOMINAL IN
special_featuresINCREASED COMPLEMENT OF ROLLERS
style_designatorSTEEP ANGLE
features_providedMONOLITHIC AND STATIC OPERATION
output_logic_formN-TYPE METAL OXIDE-SEMICONDUCTOR LOGIC
cone_corner_radius0.1400 INCHES NOMINAL IN
inclosure_materialMETAL OR CERAMIC OR PLASTIC
NSN3110-00-987-0630
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A984-1 · 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
•
STYLE DESIGNATOR: STEEP ANGLE
•
BORE DIAMETER: 1.8750 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
CONE WIDTH: 1.0594 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
CONE CORNER RADIUS: 0.1400 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 (FLIS)
STYLE DESIGNATORSTEEP ANGLE
BORE DIAMETER1.8750 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
CONE WIDTH1.0594 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
SPECIAL FEATURESINCREASED COMPLEMENT OF ROLLERS
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
E050557Interchangeable
interchangeable cross-reference
interchangeable
55187Interchangeable
interchangeable cross-reference
interchangeable
234060Interchangeable
interchangeable cross-reference
interchangeable
53177-53375Interchangeable
interchangeable cross-reference
interchangeable
377A191Interchangeable
interchangeable cross-reference
interchangeable
BT53177-533Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A984-1?
A984-1 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace A984-1?
There are 28 known substitutes for A984-1: E050557, 55187, 234060 and 25 more. Substitute compatibility should be verified for your specific system.
Is A984-1 still available?
A984-1 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: July 2026