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9B646 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

9B646: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OUTER RING, bore_shape: STRAIGHT, bore_diameter: 5.6250 INCHES NOMINAL IN, overall_width: 0.7500 INCHES NOMINAL IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-157-1877, 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
9B646
NSN: 3110-00-157-1877
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
bore_shapeSTRAIGHT
bore_diameter5.6250 INCHES NOMINAL IN
overall_width0.7500 INCHES NOMINAL IN
load_directionRADIAL
surface_finishGROUND
shield_quantity1
special_featuresOUTER RING CORNER RADIUS 0.100 IN.TO 0.0150 IN.ON SHIELDED SIDE,ALL OTHER CORNER RADII 0.1250 IN. IN
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
overall_outside_diameter7.6250 INCHES NOMINAL IN
internal_fit-up_designationSTANDARD
retainer_fabrication_methodMACHINED
NSN3110-00-157-1877
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 9B646 · 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
•
RETAINER FABRICATION METHOD: MACHINED
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 1
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 7.6250 INCHES NOMINAL IN
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
SHIELD QUANTITY1
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH0.7500 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER7.6250 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SPECIAL FEATURESOUTER RING CORNER RADIUS 0.100 IN.TO 0.0150 IN.ON SHIELDED SIDE,ALL OTHER CORNER RADII 0.1250 IN. IN
SUBSTITUTES & CROSS-REFERENCES 9
X8841PCM131Reference document
Same NSN cross-reference
Reference document — Secondary reference
18317PCM131Reference document
Same NSN cross-reference
Reference document — Secondary reference
X8761APCM131Reference document
Same NSN cross-reference
Reference document — Secondary reference
20681PCM131Reference document
Same NSN cross-reference
Reference document — Secondary reference
17652PCM131Reference document
Same NSN cross-reference
Reference document — Secondary reference
250830Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9B646?
9B646 is a BEARING,BALL,ANNULAR.
What parts can replace 9B646?
There are 9 known substitutes for 9B646: X8841PCM131, 18317PCM131, X8761APCM131 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9B646?
9B646 is cataloged in the U.S. Government catalog under NSN 3110-00-157-1877. This indicates validated use in U.S. government and defense supply chains.
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