PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 1311-B
1311-B ✓ 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 DISPLAY,OPTOELECTRONIC is a the manufacturer industrial component. Key specifications include material: STEEL ROLLER, bore_shape: STRAIGHT, bore_diameter: 2.8151 INCHES NOMINAL IN, overall_width: 29.0 MILLIMETERS NOMINAL MM, surface_finish: GROUND, locating_feature: NONLOCATING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-3657, 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
1311-B
NSN: 3110-00-227-3657
FSC: 3110
CAGE: 51600 — REGAL BELOIT AMERICA, INC. DBA ROLLWAY BEARING (USA)
SPECIFICATIONS
materialSTEEL ROLLER
bore_shapeSTRAIGHT
bore_diameter2.8151 INCHES NOMINAL IN
overall_width29.0 MILLIMETERS NOMINAL MM
surface_finishGROUND
locating_featureNONLOCATING
special_features500 NS ON-SCREEN SPEED;ENCLOSURE INCLUDES TILT STAND;SPOT RESOLUTION 0.020 INCH;ALUMINIZED SCREEN;28.5 KV ACCELERATING POTENTIAL;14.000 INCH DISPLAY IN
style_designatorSINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
overall_outside_diameter120.0 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
standard_tolerance_designationRBEC NO.1
NSN3110-00-227-3657
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1311-B · 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
•
BORE DIAMETER: 2.8151 INCHES NOMINAL IN
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 120.0 MILLIMETERS NOMINAL MM
•
LOCATING FEATURE: NONLOCATING
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL ROLLER
SPECIAL FEATURESOUTER RING AND ROLLER ASSEMBLY,NO INNER RING
BORE DIAMETER2.8151 INCHES NOMINAL IN
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER120.0 MILLIMETERS NOMINAL MM
MATERIALSTEEL OUTER RING
OVERALL WIDTH29.0 MILLIMETERS NOMINAL MM
LOCATING FEATURENONLOCATING
STYLE DESIGNATORSINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
MATERIALSTEEL OR COPPER ALLOY RETAINER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
T7737Interchangeable
interchangeable cross-reference
interchangeable
0GB-T7737Interchangeable
interchangeable cross-reference
interchangeable
7737Interchangeable
interchangeable cross-reference
interchangeable
RELEASE4450Interchangeable
interchangeable cross-reference
interchangeable
MIL-W-76Interchangeable
interchangeable cross-reference
interchangeable
LW-C22(1)U8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1311-B?
1311-B is a DISPLAY,OPTOELECTRONIC.
What parts can replace 1311-B?
There are 20 known substitutes for 1311-B: T7737, 0GB-T7737, 7737 and 17 more. Substitute compatibility should be verified for your specific system.
Is 1311-B still available?
1311-B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026