PartsTable
Technical Data Sheet
1100R ✓ Verified by PartsTable
3M · 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 3M™ 1100 Earplugs are disposable foam earplugs designed for insertion into the ear canal to help reduce exposure to hazardous levels of noise up to 35 dB, tested to EN 352-2:2020.<br><br>Get comfortable hearing protection with 3M™ 1100 Earplugs. Easy to roll down and insert, their tapered design helps provide a noise-reducing seal in the ear canal. Made with a soft, hypoallergenic foam they react and soften with your body temperature offering a longer more comfortable wear.

Fully tested and approved against EN 352-2:2020 they can reduce noise levels by 35 dB. Model is compatible for use with the 3M™ E-A-RFit™ Dual-Ear Validation System and available as a probed plug. Available in refill bottles and bags for use with 3M™ E-A-R™ One Touch™ Pro Earplug Dispenser for convenient on site easy access to hearing protection with reduced waste.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-117-0643, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
1100R
NSN: 3110-00-117-0643
FSC: 3110
CAGE: 51588 — RBC BEARINGS INCORPORATED DIV WEST TRENTON DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP 5140 OVERALL
overall_length0.3600 INCHES NOMINAL IN
style_designatorNEEDLE ROLLER, SPHERICAL ENDS
rolling_element_diameter0.0625 INCHES NOMINAL IN
NSN3110-00-117-0643
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1100R · 3M ⚠ 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
MATERIAL: STEEL COMP 5140 OVERALL
ROLLING ELEMENT DIAMETER: 0.0625 INCHES NOMINAL IN
STYLE DESIGNATOR: NEEDLE ROLLER, SPHERICAL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 5140 OVERALL
ROLLING ELEMENT DIAMETER0.0625 INCHES NOMINAL IN
OVERALL LENGTH0.3600 INCHES NOMINAL IN
STYLE DESIGNATORNEEDLE ROLLER, SPHERICAL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
X776Interchangeable
interchangeable cross-reference
interchangeable
BRA8Interchangeable
interchangeable cross-reference
interchangeable
78-375Interchangeable
interchangeable cross-reference
interchangeable
A78-375Interchangeable
interchangeable cross-reference
interchangeable
38311Interchangeable
interchangeable cross-reference
interchangeable
25-810865-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1100R?
1100R is a BEARING,ROLLER,NEEDLE manufactured by 3M.
What parts can replace 1100R?
There are 22 known substitutes for 1100R: X776, BRA8, 78-375 and 19 more. Substitute compatibility should be verified for your specific system.
Is 1100R still available?
1100R is currently cancelled.
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