Bearing Enduro Bearings SMR 9227 LLB Stainless Steel

SMR 9227 LLB – stainless steel radial bearing, C3 clearance, 9 × 22 × 7 mm.

The bearing features 440C stainless steel races, Grade 10 balls and dual-lip labyrinth seals (LLB). It is filled to 90% with Kluber NBU52 waterproof, ultra-smooth and sticky grease to withstand daily use and exposure to the elements.

A radial bearing is used as a freehub bearing, particularly in Mavic products.

440C stainless steel

Not all stainless steel is the same. Enduro uses only 440C stainless steel balls and races to provide long service life and greater corrosion resistance in demanding applications. Among standard 440-series stainless steel alloys, 440C has the highest strength, hardness and wear resistance due to its high carbon content. It is also the most expensive 440-series alloy and requires multiple rounds of heat treatment and cryogenic treatment to achieve its mechanical properties.

Stainless steel has 20% less load capacity and is slightly softer than the standard 52100 chromium steel used in most Enduro bearings. However, stainless steel is a good alternative for wet conditions, frequent bike washing or situations where sweat may be a problem.

All Enduro stainless steel bearings carry a full two-year anti-corrosion warranty.

Enduro bearings are available in high-carbon chromium steel, 440C stainless steel, ceramic-hybrid and XD-15, with ceramic or stainless steel balls. The bearing races are engineered with the deepest grooves possible to accommodate the largest balls. Dual-lip seals run in a micro-groove, creating a labyrinth that provides protection against the elements.

• Static load: 267 lbf / 1.19 kN
• Weight: 11.2 g