Bearing Grade: 440C Stainless Steel
Bearing External Diameter: 49.5mm
Bearing Internal Diameter: 40.5mm
Chamfer Angle: 45 x 45 degree
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. Enduro 440C
stainless headset bearings are the same bearings found in many popular
headset brands, including those that carry a 110 year warranty.
The
Enduro line of angular-contact headset bearings start with Black Oxide
treated Chromium Steel races, steps up to full 440C stainless steel, and
the top of the line is, lifetime-guaranteed, XD-15 aerospace-stainless
(races and balls). They are always engineered with the largest balls
possible, feature dual-lip seals riding in a micro-groove (labyrinth)
and are filled 90% with high pressure water proof grease for the
ultimate protection against sweat and the elements. Enduro Angular
Contact (A/C) bearings are designed so all balls are evenly engaged to
spread the force over a larger surface area, minimizing wear and
maximizing life.
- ACB 4545 405495 SS 1-1/2" 440C stainless steel Angular Contact Headset bearing (40.5mm x 49.5mm x 6.5mm: 45x45 deg)
- Angular-contact headset bearing featuring 440C stainless steel balls and races for superior corrosion protection.
- This size bearings also known in the bike Industry by part number:
- HSS 6011
- ACB495H6.5
- Static load - 470lbf / 2.09kN
- Weight - 24g