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Technical Data Sheet
PartsTable / COMPONENT / M1085A
M1085A ✓ 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 OUTER RING, bore_shape: STRAIGHT, bore_diameter: 55.00 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND, inner_ring_width: 1.0630 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-157-6029, 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
M1085A
NSN: 3110-00-157-6029
FSC: 3110
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
bore_shapeSTRAIGHT
bore_diameter55.00 MILLIMETERS NOMINAL MM
seal_quantity1
load_directionRADIAL
surface_finishGROUND
inner_ring_width1.0630 INCHES NOMINAL IN
outer_ring_width0.9060 INCHES NOMINAL IN
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
bearing_seal_typeCONTACT
end_item_identificationF-4E AUP AIRCRAFT
overall_outside_diameter100.00 MILLIMETERS NOMINAL MM
NSN3110-00-157-6029
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M1085A · 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
•
RETAINER FABRICATION METHOD: PRESSED
•
INNER RING WIDTH: 1.0630 INCHES NOMINAL IN
•
LOAD DIRECTION: RADIAL
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL INNER RING
TECHNICAL CHARACTERISTICS (FLIS)
RETAINER FABRICATION METHODPRESSED
INNER RING WIDTH1.0630 INCHES NOMINAL IN
LOAD DIRECTIONRADIAL
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL INNER RING
MATERIALSTEEL INNER RING
MATERIALRUBBER SYNTHETIC SEAL
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL RETAINER
MATERIALSTEEL BALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
8511Interchangeable
interchangeable cross-reference
interchangeable
CE00134-2-18Interchangeable
interchangeable cross-reference
interchangeable
AVP10S58-119PC304Interchangeable
interchangeable cross-reference
interchangeable
H3183904PC43Interchangeable
interchangeable cross-reference
interchangeable
CLC1S5801-9451825PC9Interchangeable
interchangeable cross-reference
interchangeable
33S44375-2055Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M1085A?
M1085A is a BEARING,BALL,ANNULAR.
What parts can replace M1085A?
There are 15 known substitutes for M1085A: 8511, CE00134-2-18, AVP10S58-119PC304 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M1085A?
M1085A is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-157-6029. 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