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PartsTable / COMPONENT / R1906D-SPECIAL
R1906D-SPECIAL ✓ 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 BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 INNER RING, bore_shape: STRAIGHT, bore_diameter: 1.1811 INCHES NOMINAL IN, overall_width: 0.3543 INCHES NOMINAL IN, surface_finish: GROUND, locating_feature: ONE DIRECTION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-727-7278, 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
R1906D-SPECIAL
NSN: 3110-00-727-7278
FSC: 3110
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 INNER RING
bore_shapeSTRAIGHT
bore_diameter1.1811 INCHES NOMINAL IN
overall_width0.3543 INCHES NOMINAL IN
surface_finishGROUND
locating_featureONE DIRECTION
style_designatorSINGLE ROW, ONE-DIRECTION LOCATING, TWO LIP INNER RING, ONE LIP OUTER RING, SEPARABLE
overall_outside_diameter1.8504 INCHES NOMINAL IN
internal_fit-up_designationSTANDARD
retainer_fabrication_methodMACHINED
standard_tolerance_designationRBEC NO.1
NSN3110-00-727-7278
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: R1906D-SPECIAL · 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
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
MATERIAL: COPPER ALLOY RETAINER
•
STYLE DESIGNATOR: SINGLE ROW, ONE-DIRECTION LOCATING, TWO LIP INNER RING, ONE LIP OUTER RING, SEPARABLE
•
SURFACE FINISH: GROUND
•
BORE DIAMETER: 1.1811 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL FIT-UP DESIGNATIONSTANDARD
MATERIALCOPPER ALLOY RETAINER
STYLE DESIGNATORSINGLE ROW, ONE-DIRECTION LOCATING, TWO LIP INNER RING, ONE LIP OUTER RING, SEPARABLE
MATERIALSTEEL COMP E52100 ROLLER
MATERIALSTEEL COMP E52100 OUTER RING
MATERIALSTEEL COMP E52100 INNER RING
SURFACE FINISHGROUND
BORE DIAMETER1.1811 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER1.8504 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
D-638Interchangeable
interchangeable cross-reference
interchangeable
16233Interchangeable
interchangeable cross-reference
interchangeable
560C-14-2Interchangeable
interchangeable cross-reference
interchangeable
MS400/HORInterchangeable
interchangeable cross-reference
interchangeable
40509Interchangeable
interchangeable cross-reference
interchangeable
68CS-6-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R1906D-SPECIAL?
R1906D-SPECIAL is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace R1906D-SPECIAL?
There are 9 known substitutes for R1906D-SPECIAL: D-638, 16233, 560C-14-2 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R1906D-SPECIAL?
R1906D-SPECIAL is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-727-7278. 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: July 2026