PartsTable
Technical Data Sheet
B4945 ✓ 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 BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: FIBERGLASS OVERALL, bore_shape: STRAIGHT, bore_diameter: 25.00 MILLIMETERS NOMINAL MM, contact_angle: 25.0 DEGREES MAXIMUM, overall_width: 2.843 INCHES NOMINAL IN, load_direction: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-4829, 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
B4945
NSN: 3110-00-156-4829
FSC: 3110
CAGE: 36384 — FMC CORP LINK-BELT DIV (USA)
SPECIFICATIONS
materialFIBERGLASS OVERALL
bore_shapeSTRAIGHT
bore_diameter25.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MAXIMUM
overall_width2.843 INCHES NOMINAL IN
load_directionANGULAR
overall_height0.015 INCHES NOMINAL IN
overall_length11.800 INCHES NOMINAL IN
surface_finishGROUND
first_slot_depth0.625 INCHES NOMINAL IN
first_slot_width2.812 INCHES NOMINAL IN
special_features2 HOLES OPPOSITE SIDE 0.125 IN. DIA; 1 HOLE 3.125 IN. FROM EDGE TO CENTER OF HOLE 0.750 IN. DIA; 1 HOLE ALONG TOP LENGTH 0.5556 IN. FROM EDGE TO CENTER OF HOLE 0.125 IN. DIA IN
NSN3110-00-156-4829
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B4945 · 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
SURFACE FINISH: GROUND
LUBRICATION MATERIAL: GREASE
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
CONTACT ANGLE: 25.0 DEGREES MAXIMUM
LOAD DIRECTION: ANGULAR
INTERNAL FIT-UP CONTACT ANGULAR DIRECTION: INWARD CONVERGENT
INTERNAL FIT-UP DESIGNATION: STANDARD
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
LUBRICATION MATERIALGREASE
STANDARD TOLERANCE DESIGNATIONABEC NO.1
CONTACT ANGLE25.0 DEGREES MAXIMUM
LOAD DIRECTIONANGULAR
INTERNAL FIT-UP CONTACT ANGULAR DIRECTIONINWARD CONVERGENT
INTERNAL FIT-UP DESIGNATIONSTANDARD
BORE SHAPESTRAIGHT
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
NONDEFINITIVE SPEC/STD DATA00 GRADE AND 145 TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
8380610Interchangeable
interchangeable cross-reference
interchangeable
5334454Interchangeable
interchangeable cross-reference
interchangeable
D176047Interchangeable
interchangeable cross-reference
interchangeable
1770092Interchangeable
interchangeable cross-reference
interchangeable
906034C1Interchangeable
interchangeable cross-reference
interchangeable
3205EW/VS112Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B4945?
B4945 is a BEARING,BALL,ANNULAR.
What parts can replace B4945?
There are 17 known substitutes for B4945: 8380610, 5334454, D176047 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B4945?
B4945 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-4829. This indicates validated use in U.S. government and defense supply chains.
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