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Technical Data Sheet
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C56570 — Technical Data Sheet

✓ 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, cone_width: 2.3760 INCHES NOMINAL IN, bore_diameter: 14.0000 INCHES NOMINAL IN, overall_width: 1.8750 INCHES NOMINAL IN, outside_diameter: 17.5000 INCHES NOMINAL IN, special_features: AXIAL DISTANCE BETWEEN CENTER OF CUP CONTACT LINE AND BEARING STABILITY POINT ON SHAFT AXIS 0.2800 IN. IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System under NSN 3110-01-483-2027, 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
C56570
NSN: 3110-01-483-2027
FSC: 3110
CAGE: 15950 — SMITH-BERGER MARINE, INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width2.3760 INCHES NOMINAL IN
bore_diameter14.0000 INCHES NOMINAL IN
overall_width1.8750 INCHES NOMINAL IN
outside_diameter17.5000 INCHES NOMINAL IN
special_featuresAXIAL DISTANCE BETWEEN CENTER OF CUP CONTACT LINE AND BEARING STABILITY POINT ON SHAFT AXIS 0.2800 IN. IN
style_designatorNORMAL ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.1300 INCHES NOMINAL IN
end_item_identificationFAIRLEAD ASSY
standard_tolerance_designationAFBMA CLASS 2
NSN3110-01-483-2027
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: C56570 · 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
•
BACKFACE CORNER RADIUS: 0.1300 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
OUTSIDE DIAMETER: 17.5000 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
OVERALL WIDTH1.8750 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1300 INCHES NOMINAL IN
SPECIAL FEATURESAXIAL DISTANCE BETWEEN CENTER OF CUP CONTACT LINE AND BEARING STABILITY POINT ON SHAFT AXIS 0.2800 IN. IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
END ITEM IDENTIFICATIONFAIRLEAD ASSY
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
OUTSIDE DIAMETER17.5000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
851177InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C400E216InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
233317InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C56570 ITEM 17InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
851178InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C56570 ITEM 18InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C56570?
C56570 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace C56570?
There are 6 known substitutes for C56570: 851177, C400E216, 233317 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C56570?
C56570 is cataloged in the Federal Logistics Information System under NSN 3110-01-483-2027. 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