Enduro Bearings 6706 2RS C3 - ABEC 3 - Stainless Steel Radial Bearing - 30x37x4mm

Stainless steel radial bearing with C3 clearance, 12 mm inner diameter, 32 mm outer diameter, 10 mm width, and double-sided, grinding rubber seal.

Features of the Enduro Bearings 6706 2RS C3 Ball Bearing

• Material: 440C stainless steel
• C3 clearance
• ABEC 3
• Mobil XHP 222 high pressure grease
• Seal: double sided, contact rubber seal
• Suitable for constantly wet environments

Material 440C

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 you might expect, 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 in wet conditions, if you wash your bike often, or where sweat can be a problem. Enduro stainless bearings all carry a full two year anti-corrosion warranty. The Enduro line of bearings are available in high-carbon chromium steel, 440C stainless steel, ceramic-hybrid and XD15 with ceramic or stainless balls. These bearings are always engineered with deepest groove races possible to accommodate the largest balls and feature dual-lip seals that ride in a micro-groove creating a full labyrinth to provide superior protection against the elements

C3 Clearance

The designation C3 for ball bearings means that the bearing has increased radial clearance (play) compared to standard clearance (CN/C0). It is used to compensate for thermal expansion of the shaft or high speeds, as the inner ring heats up and expands during operation without blocking the bearing.

Intended Use

A radial bearing used by Lightning Design Concepts for their recumbent bike drivetrain, and has been used in the past as a suspension pivot bearing.