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Technical Data Sheet
PartsTable / COMPONENT / 857730
857730 ✓ 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 CONE,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, cone_width: 0.6094 INCHES NOMINAL IN, bore_diameter: 1.1860 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.0500 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 2. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-191-0493, 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
857730
NSN: 3110-00-191-0493
FSC: 3110
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width0.6094 INCHES NOMINAL IN
bore_diameter1.1860 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.0500 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-191-0493
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 857730 · 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: NORMAL ANGLE
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 1.1860 INCHES NOMINAL IN
•
CONE WIDTH: 0.6094 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.0500 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 (FLIS)
STYLE DESIGNATORNORMAL ANGLE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER1.1860 INCHES NOMINAL IN
CONE WIDTH0.6094 INCHES NOMINAL IN
CONE CORNER RADIUS0.0500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
446803Interchangeable
interchangeable cross-reference
interchangeable
267040Interchangeable
interchangeable cross-reference
interchangeable
50909Interchangeable
interchangeable cross-reference
interchangeable
40Interchangeable
Same NIIN cross-reference
interchangeable
3962P11Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 857730?
857730 is a CONE,TAPERED ROLLER BEARING.
What parts can replace 857730?
There are 5 known substitutes for 857730: 446803, 267040, 50909 and 2 more. Substitute compatibility should be verified for your specific system.
Is 857730 still available?
857730 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