Silicon nitride ceramic B40070806

Used as part of rocker arm or roller lifter assemblies Performs well in high-stress environments where traditional metal rollers fail due to galling and contact fatigue Can be produced to net or near-net shape with close tolerances that can be finish-machined Resistant to wear and erosion Delivers high strength and fracture toughness Excellent thermal shock resistance Corrosion and chemical resistant Offers design flexibility for a customized solution 3M™ Silicon Nitride Cam Rollers excel in high-stress environments where traditional metal rollers fail due to galling and contact fatigue. Made of extremely durable, wear-resistant 3M™ Silicon Nitride, these rollers are used as part of rocker arm or roller lifter assemblies — components that are subjected to increasing stress levels because of the higher fuel pressures used in today’s heavy-duty engines. To maintain optimal quality standards, 3M™ Silicon Nitride Cam Rollers are produced at 3M manufacturing plants using unique compositions and processing techniques. These processes yield a fully dense and nonporous microstructure of interlocking needle-shaped grains, a microstructure that toughens the silicon nitride by a crack-deflection process similar to that found in composite materials. The result is a monolithic silicon nitride with extremely high hardness and increased fracture toughness.