Ang mga gear pump ng KAYABA/KYB ay pangunahing ginagamit sa mga makinang pang-inhinyero gaya ng Komatsu, Sumitomo, Hitachi, Kobe Steel, Kato, Tada, Carter, TCM, Mitsubishi, Toyota, Heist, Kawasaki, Clark, at iba pang Japanese, American excavator, forklift, loader. , mga dump truck, crane, cement mixer, barko, ATLAS drilling rig, at industriyal na makinarya gaya ng hydraulic machine, shoe making machine, atbp.