PartsTable
Technical Data Sheet
77503XR1225C ✓ 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: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 17.00 MILLIMETERS NOMINAL MM, overall_width: 12.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-142-6004, 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
77503XR1225C
NSN: 3110-00-142-6004
FSC: 3110
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter17.00 MILLIMETERS NOMINAL MM
overall_width12.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
shield_quantity2
special_featuresSELECTED FOR ELECTRIC MOTOR BEARING QUALITIES
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0002 INCHES MINIMUM RADIAL AND 0.0002 INCHES MAXIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
lubrication_materialGREASE
overall_outside_diameter40.00 MILLIMETERS NOMINAL MM
NSN3110-00-142-6004
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 77503XR1225C · 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
BORE SHAPE: STRAIGHT
LOAD DIRECTION: RADIAL
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
SHIELD QUANTITY: 2
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
INTERNAL CLEARANCE: 0.0002 INCHES MINIMUM RADIAL AND 0.0002 INCHES MAXIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
OVERALL OUTSIDE DIAMETER: 40.00 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SHIELD QUANTITY2
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
INTERNAL CLEARANCE0.0002 INCHES MINIMUM RADIAL AND 0.0002 INCHES MAXIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
OVERALL OUTSIDE DIAMETER40.00 MILLIMETERS NOMINAL MM
BORE DIAMETER17.00 MILLIMETERS NOMINAL MM
OVERALL WIDTH12.0 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
03031-50Interchangeable
interchangeable cross-reference
interchangeable
3B4128Interchangeable
interchangeable cross-reference
interchangeable
A1781Interchangeable
interchangeable cross-reference
interchangeable
755017A9038Interchangeable
interchangeable cross-reference
interchangeable
BP13726Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14652BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77503XR1225C?
77503XR1225C is a BEARING,BALL,ANNULAR.
What parts can replace 77503XR1225C?
There are 9 known substitutes for 77503XR1225C: 03031-50, 3B4128, A1781 and 6 more. Substitute compatibility should be verified for your specific system.
Is 77503XR1225C still available?
77503XR1225C is currently cancelled.
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