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Technical Data Sheet
PartsTable / COMPONENT / RI-18/2DDRA1P25LY75P
RI-18/2DDRA1P25LY75P ✓ 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 RI-18/2DDRA1P25LY75P is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-903-2182, 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
RI-18/2DDRA1P25LY75P
NSN: 3110-00-903-2182
FSC: 3110
CAGE: 50294 — NEW HAMPSHIRE BALL BEARINGS INC DIV PRECISION DIVISION (USA)
SPECIFICATIONS
Part NumberRI-18/2DDRA1P25LY75P
NSN3110-00-903-2182
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: RI-18/2DDRA1P25LY75P · 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
•
SEAL QUANTITY: 2
•
SURFACE FINISH: GROUND
•
LOAD DIRECTION: RADIAL
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
RETAINER FABRICATION METHOD: PRESSED
•
LUBRICATION MATERIAL: GREASE
•
INTERNAL FIT-UP DESIGNATION: STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
SEAL QUANTITY2
SURFACE FINISHGROUND
LOAD DIRECTIONRADIAL
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
RETAINER FABRICATION METHODPRESSED
LUBRICATION MATERIALGREASE
INTERNAL FIT-UP DESIGNATIONSTANDARD
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
BEARING SEAL TYPECONTACT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
109058Interchangeable
interchangeable cross-reference
interchangeable
280-1145P60Interchangeable
interchangeable cross-reference
interchangeable
MIL-R-39008/2Interchangeable
interchangeable cross-reference
interchangeable
S-312Interchangeable
interchangeable cross-reference
interchangeable
312BLInterchangeable
interchangeable cross-reference
interchangeable
76734Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RI-18/2DDRA1P25LY75P?
RI-18/2DDRA1P25LY75P is a RI-18/2DDRA1P25LY75P.
What parts can replace RI-18/2DDRA1P25LY75P?
There are 22 known substitutes for RI-18/2DDRA1P25LY75P: 109058, 280-1145P60, MIL-R-39008/2 and 19 more. Substitute compatibility should be verified for your specific system.
Is RI-18/2DDRA1P25LY75P still available?
RI-18/2DDRA1P25LY75P 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