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Technical Data Sheet
PartsTable / COMPONENT / 217D25
217D25 ✓ 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 OVERALL, cup_width: 0.7874 INCHES NOMINAL IN, cone_width: 0.8750 INCHES NOMINAL IN, bore_diameter: 1.9685 INCHES NOMINAL IN, overall_width: 0.7874 INCHES NOMINAL IN, style_designator: STRAIGHT BORE, NORMAL ANGLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3877, 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
217D25
NSN: 3110-00-100-3877
FSC: 3110
CAGE: 55633 — SMITHS JOHN E AND SONS CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width0.7874 INCHES NOMINAL IN
cone_width0.8750 INCHES NOMINAL IN
bore_diameter1.9685 INCHES NOMINAL IN
overall_width0.7874 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.0930 INCHES NOMINAL IN
backface_corner_radius0.0310 INCHES NOMINAL IN
overall_outside_diameter3.5433 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-3877
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 217D25 · 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
•
CONE WIDTH: 0.8750 INCHES NOMINAL IN
•
CUP WIDTH: 0.7874 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.0930 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BACKFACE CORNER RADIUS: 0.0310 INCHES NOMINAL IN
•
BORE DIAMETER: 1.9685 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
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)
CONE WIDTH0.8750 INCHES NOMINAL IN
CUP WIDTH0.7874 INCHES NOMINAL IN
CONE CORNER RADIUS0.0930 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BACKFACE CORNER RADIUS0.0310 INCHES NOMINAL IN
OVERALL WIDTH0.7874 INCHES NOMINAL IN
BORE DIAMETER1.9685 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
OVERALL OUTSIDE DIAMETER3.5433 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
150 17Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
13317Interchangeable
interchangeable cross-reference
interchangeable
11425Interchangeable
interchangeable cross-reference
interchangeable
366-363Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 217D25?
217D25 is a BEARING,ROLLER,TAPERED.
What parts can replace 217D25?
There are 5 known substitutes for 217D25: 150 17, B94.11M, 13317 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 217D25?
217D25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3877. 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