PartsTable
Technical Data Sheet
30J31 ✓ 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,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: STEEL INNER RING, bore_shape: STRAIGHT, bore_diameter: 100.0 MILLIMETERS NOMINAL MM, overall_width: 73.00 MILLIMETERS NOMINAL MM, surface_finish: GROUND, style_designator: DOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-871-7838, 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
30J31
NSN: 3110-00-871-7838
FSC: 3110
CAGE: 0MKW7 — MINNPAR, LLC DBA MINNPAR (USA)
SPECIFICATIONS
materialSTEEL INNER RING
bore_shapeSTRAIGHT
bore_diameter100.0 MILLIMETERS NOMINAL MM
overall_width73.00 MILLIMETERS NOMINAL MM
surface_finishGROUND
style_designatorDOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
internal_clearance0.0053 INCHES MINIMUM RADIAL AND 0.0071 INCHES MAXIMUM RADIAL IN
overall_outside_diameter215.00 MILLIMETERS NOMINAL MM
nondefinitive_spec/std_data6 CLASS AND 264 TYPE AND 00 GRADE
retainer_fabrication_methodMACHINED
standard_tolerance_designationRBEC NO.1
departure_from_cited_designatorAS MODIFIED BY INTERNAL CLEARANCE
NSN3110-00-871-7838
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 30J31 · 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
MATERIAL: STEEL ROLLER
STYLE DESIGNATOR: DOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
NONDEFINITIVE SPEC/STD DATA: 6 CLASS AND 264 TYPE AND 00 GRADE
BORE SHAPE: STRAIGHT
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
BORE DIAMETER: 100.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL ROLLER
STYLE DESIGNATORDOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
MATERIALCOPPER ALLOY RETAINER
MATERIALSTEEL OUTER RING
NONDEFINITIVE SPEC/STD DATA6 CLASS AND 264 TYPE AND 00 GRADE
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER100.0 MILLIMETERS NOMINAL MM
RETAINER FABRICATION METHODMACHINED
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
T1-0001Interchangeable
interchangeable cross-reference
interchangeable
531249Interchangeable
interchangeable cross-reference
interchangeable
ST5M1300-001Interchangeable
interchangeable cross-reference
interchangeable
T1001Interchangeable
interchangeable cross-reference
interchangeable
TB816Interchangeable
interchangeable cross-reference
interchangeable
TWS1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30J31?
30J31 is a BEARING,ROLLER,SELF-ALIGNING.
What parts can replace 30J31?
There are 11 known substitutes for 30J31: T1-0001, 531249, ST5M1300-001 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30J31?
30J31 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-871-7838. This indicates validated use in U.S. government and defense supply chains.
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