C 2212 KTN9

The C 2212 KTN9 CARB toroidal roller bearing is a unique single row bearing designed to offer an exceptional combination of self-alignment and axial freedom, making it a standout choice for demanding industrial applications. With typical dimensions including a 60mm bore (often on a 1:12 taper, designated by "K"), 110mm outer diameter, and 28mm width, this bearing is engineered to handle high radial loads. Its "TN9" designation often points to a durable glass fibre reinforced polyamide cage, which contributes to smooth operation. The CARB bearing's distinctive toroidal roller and raceway profiles allow it to accommodate both angular misalignment and axial displacement within the bearing itself, without inducing internal axial loads.

Key advantages of the C 2212 KTN9 CARB bearing lie in its innovative design that addresses multiple operational challenges simultaneously. It acts like a self-aligning bearing, similar to a spherical roller bearing, effectively compensating for shaft deflections or mounting inaccuracies. Simultaneously, it provides frictionless axial displacement, akin to a cylindrical or needle roller bearing, readily accommodating thermal expansion or contraction of the shaft. This dual capability eliminates the need for compromises in bearing arrangements, allowing for tighter fits and reducing issues like fretting corrosion. This leads to cooler running temperatures, reduced vibration, and can significantly extend bearing and lubricant service life.

The C 2212 KTN9 is particularly beneficial as the non-locating bearing in a self-aligning bearing system, where it optimizes load distribution and minimizes internal stresses. Its ability to prevent induced axial forces leads to increased reliability and potentially longer maintenance intervals. Common applications include paper machines, continuous casters, industrial fans and blowers, gearboxes, and other machinery where misalignment and axial shaft expansion are prevalent. By choosing the C 2212 KTN9 CARB bearing, engineers can achieve more compact, reliable, and efficient machinery designs.

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