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BT44158 — 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: 0.9330 INCHES NOMINAL IN, bore_diameter: 1.5625 INCHES NOMINAL IN, style_designator: STEEP ANGLE, cone_corner_radius: 0.1406 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-100-3603, 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
BT44158
NSN: 3110-00-100-3603
FSC: 3110
CAGE: 01212 — FEDERAL-MOGUL CORP GOVERNMENT SALES DEPT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width0.9330 INCHES NOMINAL IN
bore_diameter1.5625 INCHES NOMINAL IN
style_designatorSTEEP ANGLE
cone_corner_radius0.1406 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-3603
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: BT44158 · 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
•
CONE WIDTH: 0.9330 INCHES NOMINAL IN
•
BORE DIAMETER: 1.5625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STEEP ANGLE
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
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
CONE WIDTH0.9330 INCHES NOMINAL IN
BORE DIAMETER1.5625 INCHES NOMINAL IN
STYLE DESIGNATORSTEEP ANGLE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
5120-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
GGG-K-275InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
76006InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
44158InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3100-45-248InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
44158-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BT44158?
BT44158 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace BT44158?
There are 15 known substitutes for BT44158: 5120-4, GGG-K-275, 76006 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BT44158?
BT44158 is cataloged in the Federal Logistics Information System under NSN 3110-00-100-3603. 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: September 2026