PartsTable
Technical Data Sheet
Download PDF

211570 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

211570: CUP,TAPERED ROLLER BEARING.

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 U.S.

Government catalog 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
NIINs: 001000315, 001384440, 003423852
FSC: 3110 — Bearings, Antifriction, Unmounted
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
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 4.2500 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0312 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
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
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.8750 INCHES NOMINAL IN
OUTSIDE DIAMETER4.2500 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0312 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 8
31433HReference document
Same NSN cross-reference
Reference document — Secondary reference
634303Reference document
Same NSN cross-reference
Reference document — Secondary reference
0211570Reference document
Same NSN cross-reference
Reference document — Secondary reference
E1803Reference document
Same NSN cross-reference
Reference document — Secondary reference
A10231XReference document
Same NSN cross-reference
Reference document — Secondary reference
4FD061Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 211570?
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 211570?
211570 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 211570?
There are 8 known substitutes for 211570: 31433H, 634303, 0211570 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 211570?
211570 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0315. 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 — 211570

✓ 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.