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PartsTable / COMPONENT / GB56
GB56 ✓ 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,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: FIBER AND RUBBER BODY, bore_diameter: 0.3123 INCHES MINIMUM AND 0.3126 INCHES MAXIMUM IN, overall_width: 0.3650 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN, alignment_type: RIGID, surface_finish: GROUND, performance_type: HIGH CAPACITY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-110-9392, 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
GB56
NSN: 3110-00-110-9392
FSC: 3110
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
materialFIBER AND RUBBER BODY
bore_diameter0.3123 INCHES MINIMUM AND 0.3126 INCHES MAXIMUM IN
overall_width0.3650 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
alignment_typeRIGID
surface_finishGROUND
performance_typeHIGH CAPACITY
style_designatorPLAIN
cross-sectional_sizeB
nominal_pitch_length57.800 INCHES IN
strengthening_featureFIBER CORD
overall_outside_diameter0.4947 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN
nominal_effective_outside_length59.000 INCHES IN
NSN3110-00-110-9392
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: GB56 · 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
•
ALIGNMENT TYPE: RIGID
•
OVERALL OUTSIDE DIAMETER: 0.4947 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
BORE DIAMETER: 0.3123 INCHES MINIMUM AND 0.3126 INCHES MAXIMUM IN
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-SEPARABLE, OPEN END, DRAWN SHELL
TECHNICAL CHARACTERISTICS (FLIS)
ALIGNMENT TYPERIGID
OVERALL WIDTH0.3650 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER0.4947 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
BORE DIAMETER0.3123 INCHES MINIMUM AND 0.3126 INCHES MAXIMUM IN
SURFACE FINISHGROUND
STYLE DESIGNATORNON-SEPARABLE, OPEN END, DRAWN SHELL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
BP56Interchangeable
interchangeable cross-reference
interchangeable
B56Interchangeable
interchangeable cross-reference
interchangeable
SA11207Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GB56?
GB56 is a BEARING,ROLLER,NEEDLE.
What parts can replace GB56?
There are 3 known substitutes for GB56: BP56, B56, SA11207. Substitute compatibility should be verified for your specific system.
What is the NSN for GB56?
GB56 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-110-9392. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026