PartsTable
Technical Data Sheet
RB31 ✓ 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,BALL,AIRFRAME is a the manufacturer industrial component. Key specifications include color: BLACK, material: PLASTIC PHENOLIC, design_type: DIPOLE SINGLE ANTENNA ELEMENT, skirt_style: FLARED, inside_width: 0.156 INCHES NOMINAL IN, skirt_design: NONDETACHABLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-1486, 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
RB31
NSN: 3110-00-156-1486
FSC: 3110
CAGE: 08785 — ANN ARBOR BEARING AND MFG CO (USA)
SPECIFICATIONS
colorBLACK
materialPLASTIC PHENOLIC
design_typeDIPOLE SINGLE ANTENNA ELEMENT
skirt_styleFLARED
inside_width0.156 INCHES NOMINAL IN
skirt_designNONDETACHABLE
bore_diameter3.5000 INCHES NOMINAL IN
overall_depth0.500 INCHES NOMINAL IN
alignment_typeRIGID
overall_height0.8 METERS MINIMUM AND 1.6 METERS MAXIMUM
pointer_designNONDETACHABLE
surface_finishGROUND
NSN3110-00-156-1486
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: RB31 · 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
SURFACE FINISH: GROUND
OVERALL OUTSIDE DIAMETER: 6.2187 INCHES NOMINAL IN
ALIGNMENT TYPE: RIGID
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR THRUST BEARINGS
BORE DIAMETER: 3.5000 INCHES NOMINAL IN
MATERIAL: STEEL WASHER
STYLE DESIGNATOR: FLAT RACE SURFACE, CYLINDRICAL ROLLERS
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER6.2187 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR THRUST BEARINGS
BORE DIAMETER3.5000 INCHES NOMINAL IN
MATERIALSTEEL WASHER
MATERIALSTEEL ROLLER
STYLE DESIGNATORFLAT RACE SURFACE, CYLINDRICAL ROLLERS
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
OVERALL HEIGHT1.0000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
OPALInterchangeable
interchangeable cross-reference
interchangeable
12Z317-38Interchangeable
interchangeable cross-reference
interchangeable
D42Interchangeable
interchangeable cross-reference
interchangeable
E4-5Interchangeable
interchangeable cross-reference
interchangeable
T26Interchangeable
interchangeable cross-reference
interchangeable
SCD1967Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RB31?
RB31 is a BEARING,BALL,AIRFRAME.
What parts can replace RB31?
There are 21 known substitutes for RB31: OPAL, 12Z317-38, D42 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RB31?
RB31 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-1486. This indicates validated use in U.S. government and defense supply chains.
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