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ML-307 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

ML-307: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL ROLLER, base_style: SINGLE CONTACT BAYONET CANDELABRA, bore_shape: STRAIGHT, bulb_style: S (STRAIGHT SIDE), bore_diameter: 35.00 MILLIMETERS NOMINAL MM, overall_width: 21.00 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-155-6558, 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
ML-307
NSN: 3110-00-155-6558
NIINs: 001556558, 001557784
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 51600 — REGAL BELOIT AMERICA, INC. DBA ROLLWAY BEARING (USA)
SPECIFICATIONS
materialSTEEL ROLLER
base_styleSINGLE CONTACT BAYONET CANDELABRA
bore_shapeSTRAIGHT
bulb_styleS (STRAIGHT SIDE)
bore_diameter35.00 MILLIMETERS NOMINAL MM
overall_width21.00 MILLIMETERS NOMINAL MM
overall_length2.000 INCHES MAXIMUM IN
surface_finishGROUND
voltage_rating28.000 VOLTS NOMINAL
wattage_rating18.200 WATTS
bulb_designatorS-8
locating_featureONE DIRECTION
NSN3110-00-155-6558
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: ML-307 · 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
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
LOCATING FEATURE: ONE DIRECTION
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: SINGLE ROW, ONE-DIRECTION LOCATING, TWO LIP INNER RING, ONE LIP OUTER RING, SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 80.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
TECHNICAL CHARACTERISTICS
INTERNAL FIT-UP DESIGNATIONSTANDARD
LOCATING FEATUREONE DIRECTION
SURFACE FINISHGROUND
STYLE DESIGNATORSINGLE ROW, ONE-DIRECTION LOCATING, TWO LIP INNER RING, ONE LIP OUTER RING, SEPARABLE
OVERALL WIDTH21.00 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER80.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER35.00 MILLIMETERS NOMINAL MM
MATERIALSTEEL OUTER RING
SUBSTITUTES & CROSS-REFERENCES 7
690706Reference document
Same NSN cross-reference
Reference document — Secondary reference
BU1307LReference document
Same NSN cross-reference
Reference document — Secondary reference
NF307Reference document
Same NSN cross-reference
Reference document — Secondary reference
MU1307DLReference document
Same NSN cross-reference
Reference document — Secondary reference
U-1307-L-003Reference document
Same NSN cross-reference
Reference document — Secondary reference
7450269Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ML-307?
ML-307 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace ML-307?
There are 7 known substitutes for ML-307: 690706, BU1307L, NF307 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ML-307?
ML-307 is cataloged in the U.S. Government catalog under NSN 3110-00-155-6558. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.