SKU: 52694208981

Enduro Headset Bearing 1.125" Stainless ACB 3645 1

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Description

Enduro Headset Bearing 1.125" Stainless ACB 3645 1ACB 3645 1125 SS 1 1 8" 440C Stainless Steel Angular contact Headset Bearing (30. 5mm 41. 8mm x 6. 3mm; 36 x 45 deg) This size bearing is also known in the bike Industry by these part numbers: IS42ACB30418KMH P03K Not all stainless steel is created equal. Enduro only uses 440C stainless steel balls and races to provide long life and superior corrosion resistance in applications and environments that may be less than ideal. 440C has the highest

ACB 3645 1125 SS - 1-1/8" 440C Stainless Steel Angular contact Headset Bearing (30.5mm 41.8mm x 6.3mm; 36 x 45 deg) -

This size bearing is also known in the bike Industry by these part numbers:
IS42
ACB30418K
MH-P03K

Not all stainless steel is created equal. 
Enduro only uses 440C stainless steel balls and races to provide long life and superior corrosion resistance in applications and environments that may be less than ideal. 440C has the highest strength, hardness, and wear resistance of all the standard 440-series stainless alloys with high carbon content. As expected, it is also the most expensive of the 440 series alloys and requires multiple rounds of heat treatment and cryogenic treatment to achieve its superior mechanical properties. Though stainless steel has 20% less load capacity and is slightly softer than our standard 52100 chromium steel used in most of our bearings, stainless steel is an excellent alternative for use in wet conditions, if you wash your bike often, or where sweat can be a problem. Enduro Bearings also uses LLB type seals and CRC Marine grease in these bearings to additionally water proof against the elements.  All Enduro stainless headset bearings carry a limited lifetime warranty.

The Enduro line of headset bearings consists of two basic performance levels that are a substantial step up from standard bike industry specifications. Enduro "entry-level" headset bearings feature premium materials like Black-Oxide treated races and carry a two year warranty, while our premium 440C stainless headset bearings carry a full lifetime warranty. 

All Enduro bearings are always engineered with the largest balls possible and feature dual lip labyrinth seals for maximum protection against sweat and the elements and to contain the 90% high pressure water proof grease, keeping everything running smoothly for the duration. The Angular Contact (A/C) design of Enduro headset bearings allow all balls in the bearing to engage the load, spreading the force over a larger surface area minimizing any possibility of premature wear and greatly extending bearing life.

Static load - 935lbf / 4.15kN 
Weight - 19g


Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 52694208981

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B. Naranjo
Los Angeles, US
★★★★★ 4
works well and sturdy
Color: Silver
work well, keep my sink from getting "slimy" corners and soap buildup
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
D
Verified Purchase
DHB
New York, US
★★★★★ 5
Perfect for your sink organization
Color: Silver Grey
I have searched many sites for a product that will fit on our sink for all our kitchen and dishwashing needs and I finally found this product which proper fits with our kitchen decor and fits perfectly on our sink and it is very strong. I’m not worried about it breaking it anyway. Well with the price.
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Reviewed in the United States on May 24, 2026
A
Verified Purchase
Adam
Fort Morgan, US
★★★★★ 5
Love it
Color: Mattle Black
We'd been looking for a sponge holder we liked for a while andy wife came across this one. We were not disappointed. It's plenty big to hold a handful of sponges and scrubbers, plus our hand soap. I like the design that lets excess water drip back into the sink. Looks pretty low profile and sleek too
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Reviewed in the United States on May 18, 2026
C
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Cathy
Grantham, US
★★★★★ 5
Keeps the water off your counter!
Color: Mattle Black, Color: Mattle Black
Works great! I’ve been looking for a solution to stop the sponge water from spilling onto the counter! Liked nice and neat. Great for keeping everything neat and organized. Size is perfect for sponges and nail brush and a small soap bottle.
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Reviewed in the United States on November 2, 2025
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donna kilgore
Louisville, US
★★★★★ 3
3 of 5
Color: Mattle Black
It is functional, but doesn't sit flush on my sink or counter
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Reviewed in the United States on May 29, 2026

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