PartsTable
Technical Data Sheet
B308 ✓ Verified by PartsTable
Bosch · 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,JOURNAL is a Bosch industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 1.8750 INCHES NOMINAL IN, overall_width: 0.50000 INCHES NOMINAL IN, alignment_type: RIGID, special_features: 9.6VDC, 1000 MAH, 8 AA VDC, style_designator: NON-SEPARABLE, OPEN END, DRAWN SHELL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-108-7788, 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
B308
NSN: 3110-00-108-7788
FSC: 3110
CAGE: 51600 — REGAL BELOIT AMERICA, INC. DBA ROLLWAY BEARING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter1.8750 INCHES NOMINAL IN
overall_width0.50000 INCHES NOMINAL IN
alignment_typeRIGID
special_features9.6VDC, 1000 MAH, 8 AA VDC
style_designatorNON-SEPARABLE, OPEN END, DRAWN SHELL
end_item_identificationFIXTURE, LIGHTING
overall_outside_diameter2.2500 INCHES NOMINAL IN
standard_tolerance_designationAFBMA STD TOLERANCES FOR JOURNAL BEARINGS
part_name_assigned_by_controlling_agencyLED LIGHT FIXTURE, SINGLE FOUNDATION
NSN3110-00-108-7788
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B308 · Bosch ⚠ 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
OVERALL OUTSIDE DIAMETER: 90.0 MILLIMETERS NOMINAL MM
MATERIAL: STEEL OVERALL
STYLE DESIGNATOR: SOLID OUTER RACE, NO INNER RACE
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCES FOR JOURNAL BEARINGS
BORE DIAMETER: 2.0000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER90.0 MILLIMETERS NOMINAL MM
MATERIALSTEEL OVERALL
STYLE DESIGNATORSOLID OUTER RACE, NO INNER RACE
OVERALL WIDTH1.4375 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCES FOR JOURNAL BEARINGS
BORE DIAMETER2.0000 INCHES NOMINAL IN
SPECIAL FEATURESOIL HOLE IN OUTER RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
31360-1REVDInterchangeable
interchangeable cross-reference
interchangeable
31360Interchangeable
interchangeable cross-reference
interchangeable
50A1200-3Interchangeable
interchangeable cross-reference
interchangeable
318M0016P001Interchangeable
interchangeable cross-reference
interchangeable
63125Interchangeable
interchangeable cross-reference
interchangeable
9995232Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B308?
B308 is a BEARING,ROLLER,JOURNAL manufactured by Bosch.
What parts can replace B308?
There are 15 known substitutes for B308: 31360-1REVD, 31360, 50A1200-3 and 12 more. Substitute compatibility should be verified for your specific system.
Is B308 still available?
B308 is currently cancelled.
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