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Technical Data Sheet
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28959 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

28959: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include overall_width: 11.0000 INCHES NOMINAL IN, overall_height: 10.000 INCHES NOMINAL IN, overall_length: 7.000 INCHES NOMINAL IN, gravity_unit_range: +00.3 TO 10.0, end_item_identification: T-56 ENGINE. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-681-9725, 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
28959
NSN: 3110-00-681-9725
NIINs: 006819725, 010548650, 010673318, 014091796, 014155757
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 78118 — MPB CORPORATION DBA MPB CORP (USA)
SPECIFICATIONS
overall_width11.0000 INCHES NOMINAL IN
overall_height10.000 INCHES NOMINAL IN
overall_length7.000 INCHES NOMINAL IN
gravity_unit_range+00.3 TO 10.0
end_item_identificationT-56 ENGINE
NSN3110-00-681-9725
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 28959 · 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
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RETAINER FABRICATION METHOD: MACHINED
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INTERNAL CLEARANCE: 0.0012 INCHES MINIMUM RADIAL AND 0.0026 INCHES MAXIMUM RADIAL IN
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LOCATING FEATURE: ONE DIRECTION
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SURFACE FINISH: GROUND
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STYLE DESIGNATOR: SINGLE ROW, ONE-DIRECTION LOCATING, ONE LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
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OVERALL OUTSIDE DIAMETER: 2.4409 INCHES NOMINAL IN
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
INTERNAL CLEARANCE0.0012 INCHES MINIMUM RADIAL AND 0.0026 INCHES MAXIMUM RADIAL IN
LOCATING FEATUREONE DIRECTION
SURFACE FINISHGROUND
STYLE DESIGNATORSINGLE ROW, ONE-DIRECTION LOCATING, ONE LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
OVERALL WIDTH16.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER2.4409 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER1.1807 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
MR206GReference document
Same NSN cross-reference
Reference document — Secondary reference
NJ206VAAReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 28959?
28959 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 28959?
There are 2 known substitutes for 28959: MR206G, NJ206VAA. Substitute compatibility should be verified for your specific system.
What is the NSN for 28959?
28959 is cataloged in the U.S. Government catalog under NSN 3110-00-681-9725. This indicates validated use in U.S. government and defense supply chains.
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