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Technical Data Sheet
PartsTable / COMPONENT / B4M0170-148S10DX
B4M0170-148S10DX ✓ 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,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 CONE, cup_width: 1.8750 INCHES NOMINAL IN, cone_width: 2.6250 INCHES NOMINAL IN, bore_diameter: 6.0000 INCHES NOMINAL IN, overall_width: 2.6250 INCHES NOMINAL IN, standout_width: 0.7500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-5538, 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
B4M0170-148S10DX
NSN: 3110-00-100-5538
FSC: 3110
CAGE: 21444 — REXNORD INDUSTRIES LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 CONE
cup_width1.8750 INCHES NOMINAL IN
cone_width2.6250 INCHES NOMINAL IN
bore_diameter6.0000 INCHES NOMINAL IN
overall_width2.6250 INCHES NOMINAL IN
standout_width0.7500 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.2810 INCHES NOMINAL IN
backface_corner_radius0.1250 INCHES NOMINAL IN
overall_outside_diameter10.0000 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
material_document_and_classificationQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE CUP
NSN3110-00-100-5538
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B4M0170-148S10DX · 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
•
BACKFACE CORNER RADIUS: 0.1250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
CONE WIDTH: 2.6250 INCHES NOMINAL IN
•
OVERALL OUTSIDE DIAMETER: 10.0000 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE CUP
•
BORE DIAMETER: 6.0000 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH2.6250 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
CONE WIDTH2.6250 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER10.0000 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE CUP
BORE DIAMETER6.0000 INCHES NOMINAL IN
CONE CORNER RADIUS0.2810 INCHES NOMINAL IN
STANDOUT WIDTH0.7500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
5130PL0905202Interchangeable
interchangeable cross-reference
interchangeable
99-600Interchangeable
interchangeable cross-reference
interchangeable
B05-200B-21Interchangeable
interchangeable cross-reference
interchangeable
40360729Interchangeable
interchangeable cross-reference
interchangeable
1002-28Interchangeable
interchangeable cross-reference
interchangeable
700316Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B4M0170-148S10DX?
B4M0170-148S10DX is a BEARING,ROLLER,TAPERED.
What parts can replace B4M0170-148S10DX?
There are 24 known substitutes for B4M0170-148S10DX: 5130PL0905202, 99-600, B05-200B-21 and 21 more. Substitute compatibility should be verified for your specific system.
Is B4M0170-148S10DX still available?
B4M0170-148S10DX is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026