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3M™ Silicon Nitride Engine Cam Rollers

3M ID B40070806
  • Holds up under harsh engine conditions
  • Combines thermal shock resistance with high fracture toughness
  • Weighs 60% less than steel
  • Helps extend the life of valve train components compared to similar metal products
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  • Holds up under harsh engine conditions
  • Combines thermal shock resistance with high fracture toughness
  • Weighs 60% less than steel
  • Helps extend the life of valve train components compared to similar metal products

3M™ Silicon Nitride Engine Cam Rollers excel in high-stress environments where traditional metal rollers fail due to galling and contact fatigue. Our silicon nitride cam rollers are also 60% lighter than steel and typically reduce problems common to metal versions.

Manufactured to Withstand Punishing Treatment in Engines
3M™ Silicon Nitride Engine Cam Rollers withstand the high contact stresses of valve train applications in heavy-duty diesel and gasoline engines. 3M silicon nitride cam rollers are used as part of rocker arm or roller lifter assemblies, which are subjected to increasing stress levels because of the higher fuel pressures used in today’s heavy-duty engines. Made of extremely durable, wear-resistant 3M™ Silicon Nitride, our cam rollers deliver high performance where traditional metal rollers fail due to galling and contact fatigue.

Advantages of 3M™ Silicon Nitride
3M silicon nitride is a high-strength, lightweight ceramic material offering an excellent combination of material properties such as thermal shock resistance and high fracture toughness. These properties make 3M silicon nitride a good material choice for demanding applications in a variety of industries, including foundries, electronics, oil and gas, power generation, automotive, and aerospace.

Insights into the Advantages of the 3M Manufacturing Process
To maintain optimal quality standards, 3M silicon nitride engine 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. This microstructure 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. We also use high-precision, high-volume grinding and super-finishing techniques to machine crown profiles on the outer diameters of cam rollers, helping minimize contact stress and further increasing system reliability. We can produce components to net or near-net shape with close tolerances that can be finish-machined.

About 3M Advanced Ceramics
These advanced ceramic products are manufactured at ISO 9001 certified facilities. Our manufacturing processes are optimized for quality, efficiency and consistency – helping ensure reliable and repeatable product performance. We have more than 85 years of experience in designing and manufacturing cutting-edge ceramic solutions, and we continually work to develop new applications for ceramic materials in cooperation with our customers and with research institutions.

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