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Technical Data Sheet
PartsTable / COMPONENT / 211570
211570 ✓ 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 CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: RUBBER SILICONE CLASS Q, overall_width: 0.8750 INCHES NOMINAL IN, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.865 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN, style_designator: NORMAL ANGLE, center_hole_diameter: 0.669 INCHES MINIMUM AND 0.679 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0315, 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
211570
NSN: 3110-00-100-0315
FSC: 3110
CAGE: 92392 — ALLIS-CHALMERS CORP (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q
overall_width0.8750 INCHES NOMINAL IN
hardness_rating70.0 SHORE DUROMETER A NOMINAL
outside_diameter0.865 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN
style_designatorNORMAL ANGLE
center_hole_diameter0.669 INCHES MINIMUM AND 0.679 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
backface_corner_radius0.0312 INCHES NOMINAL IN
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-0315
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 211570 · 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
•
OUTSIDE DIAMETER: 4.2500 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BACKFACE CORNER RADIUS: 0.0312 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)
OUTSIDE DIAMETER4.2500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
OVERALL WIDTH0.8750 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
ASTM-D5118 TYCFVASWGR275STRSCCLDInterchangeable
interchangeable cross-reference
interchangeable
ASTM-D1974Interchangeable
interchangeable cross-reference
interchangeable
8681Interchangeable
interchangeable cross-reference
interchangeable
901-17Interchangeable
interchangeable cross-reference
interchangeable
901-17CPInterchangeable
interchangeable cross-reference
interchangeable
2509-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 211570?
211570 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 211570?
There are 25 known substitutes for 211570: ASTM-D5118 TYCFVASWGR275STRSCCLD, ASTM-D1974, 8681 and 22 more. Substitute compatibility should be verified for your specific system.
Is 211570 still available?
211570 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