VALVE SPOOLS

of GMB

Valve spools are a crucial component responsible for the shifting and directional changes in automatic transmissions. It precisely controls the flow and pressure of fluid, enhancing the efficiency of the system. GMB's valve spools are characterized by their durability and long lifespan.

GMB boasts one of the world's highest production volumes, manufacturing over 400 million units annually. Despite this large output, there are minimal reports of issues in OEM applications. The ability to maintain such high-quality valve spools is attributed to precision machining and a robust internal quality control system.
While most of the production processes are handled internally by GMB, some stages involve external partners. Regular audits are conducted at these external facilities to ensure and maintain the quality standards we demand.
Valve spools were initially developed for internal combustion engine vehicles but have undergone improvements to make them suitable for use in hybrid vehicles as well. With a focus on environmental considerations, any scrap generated during the manufacturing and processing stages is melted down and recycled back into the production line.

PRODUCT GRADES

• Comparison of standard specs

• Manufacturer

  Roughness

  Roundness

  MAX

  Circularity

  MAX

  Coaxiality

  MAX

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• Japanese manufacturers

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  ★

  ★

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• American manufacturers

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  ★

  ★

• German manufacturers

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