PartsTable
Technical Data Sheet
Download PDF

155D250 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
Lenovo · TAPERED BEARING
PRODUCT OVERVIEW

155D250: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a Lenovo industrial component. Key specifications include material: COPPER ALLOY RETAINER, bore_shape: STRAIGHT, bore_diameter: 3.5415 INCHES MINIMUM AND 3.5421 INCHES MAXIMUM IN, surface_finish: GROUND, inner_ring_width: 1.1490 INCHES MINIMUM AND 1.1520 INCHES MAXIMUM IN, locating_feature: ONE DIRECTION. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-898-9744, 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
155D250
NSN: 3110-00-898-9744
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY RETAINER
bore_shapeSTRAIGHT
bore_diameter3.5415 INCHES MINIMUM AND 3.5421 INCHES MAXIMUM IN
surface_finishGROUND
inner_ring_width1.1490 INCHES MINIMUM AND 1.1520 INCHES MAXIMUM IN
locating_featureONE DIRECTION
outer_ring_width1.2148 INCHES MINIMUM AND 1.2158 INCHES MAXIMUM IN
internal_clearance0.0023 INCHES MINIMUM RADIAL AND 0.0037 INCHES MAXIMUM RADIAL IN
overall_outside_diameter6.6919 INCHES MINIMUM AND 6.6929 INCHES MAXIMUM IN
retainer_fabrication_methodMACHINED
NSN3110-00-898-9744
MORE FROM LENOVO
Popular Lenovo machine pages — browsing only, not a fit claim for 155D250.
ThinkSystem SR650 V1 ThinkSystem SR650 V2 ThinkSystem SR630 V1 ThinkSystem SR630 V2 System x3650 M5 System x3550 M5 ThinkServer RD550 System x IBM System x3650 M4 ThinkServer RD650 SD530 System x3500 M4 ThinkServer RD350
All Lenovo machines and parts
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 155D250 · Lenovo ⚠ 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: MACHINED
•
OUTER RING WIDTH: 1.2148 INCHES MINIMUM AND 1.2158 INCHES MAXIMUM IN
•
INTERNAL CLEARANCE: 0.0023 INCHES MINIMUM RADIAL AND 0.0037 INCHES MAXIMUM RADIAL IN
•
LOCATING FEATURE: ONE DIRECTION
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 6.6919 INCHES MINIMUM AND 6.6929 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
•
TEST DATA DOCUMENT: 66640-155D250 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
OUTER RING WIDTH1.2148 INCHES MINIMUM AND 1.2158 INCHES MAXIMUM IN
INTERNAL CLEARANCE0.0023 INCHES MINIMUM RADIAL AND 0.0037 INCHES MAXIMUM RADIAL IN
LOCATING FEATUREONE DIRECTION
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER6.6919 INCHES MINIMUM AND 6.6929 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
TEST DATA DOCUMENT66640-155D250 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
BORE DIAMETER3.5415 INCHES MINIMUM AND 3.5421 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY RETAINER
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 1
D3-58126Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
Ready to buy 155D250?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 155D250?
155D250 is a BEARING,ROLLER,CYLINDRICAL manufactured by Lenovo.
What parts can replace 155D250?
There is 1 known substitute for 155D250: D3-58126. Substitute compatibility should be verified for your specific system.
What is the NSN for 155D250?
155D250 is cataloged in the U.S. Government catalog under NSN 3110-00-898-9744. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 155D250

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.