PartsTable
Technical Data Sheet
AB4A ✓ 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,AIRFRAME is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_length: 4.000 INCHES NOMINAL IN, style_designator: OPEN END SINGLE HEAD RACK AND WORM ADJUSTMENT, surface_treatment: OXIDE OVERALL, wrenching_surface_size: 0.500 INCHES MAXIMUM SINGLE END IN, wrenching_surface_shape: OVAL SINGLE END INTERNAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-143-3016, 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
AB4A
NSN: 3110-00-143-3016
FSC: 3110
CAGE: 77896 — REXNORD INDUSTRIES, LLC DIV AEROSSPACE BEARING OPERATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length4.000 INCHES NOMINAL IN
style_designatorOPEN END SINGLE HEAD RACK AND WORM ADJUSTMENT
surface_treatmentOXIDE OVERALL
wrenching_surface_size0.500 INCHES MAXIMUM SINGLE END IN
wrenching_surface_shapeOVAL SINGLE END INTERNAL
nondefinitive_spec/std_data1 TYPE
specification/standard_data05047-ASME B107.100 CAT 8 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN3110-00-143-3016
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: AB4A · 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
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
INNER RING WIDTH: 1.1250 INCHES NOMINAL IN
OUTER RING WIDTH: 0.7500 INCHES NOMINAL IN
BEARING SEAL TYPE: CONTACT
STYLE DESIGNATOR: CONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING
SURFACE TREATMENT: CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
SEAL QUANTITY: 2
SHIELD QUANTITY: 2
TECHNICAL CHARACTERISTICS (FLIS)
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
INNER RING WIDTH1.1250 INCHES NOMINAL IN
OUTER RING WIDTH0.7500 INCHES NOMINAL IN
BEARING SEAL TYPECONTACT
STYLE DESIGNATORCONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING
SURFACE TREATMENTCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
SEAL QUANTITY2
SHIELD QUANTITY2
SPECIAL FEATURES10 DEG SELF ALIGNMENT IN EITHER DIRECTION,LUBRICANT HOLE AND GROOVE IN OUTER RING,HEAT TREATED SLEEVE AND COLLARS ON INNER RING
LUBRICATION MATERIALGREASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
0311-0057Interchangeable
interchangeable cross-reference
interchangeable
AB-4Interchangeable
interchangeable cross-reference
interchangeable
0-AB-4Interchangeable
interchangeable cross-reference
interchangeable
0311-0346Interchangeable
interchangeable cross-reference
interchangeable
4-AB-13Interchangeable
interchangeable cross-reference
interchangeable
AB5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AB4A?
AB4A is a BEARING,ROLLER,AIRFRAME.
What parts can replace AB4A?
There are 12 known substitutes for AB4A: 0311-0057, AB-4, 0-AB-4 and 9 more. Substitute compatibility should be verified for your specific system.
Is AB4A still available?
AB4A is currently cancelled.
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