JNBE Type Cylindrical Mounts

The natural frequency of a vibration isolator is a crucial factor affecting its vibration reduction performance. The typical natural frequency range of JNBE cylindrical mounts is between 5Hz and 30Hz, influenced by rubber hardness and applied load during installation. A lower natural frequency generally means better isolation of low-frequency vibrations, which are common in rotating machinery such as pumps and compressors. Selecting a natural frequency that does not coincide with the equipment’s operating frequency is essential to avoid resonance, which can amplify vibrations instead of reducing them. Understanding your equipment’s vibration characteristics and choosing the appropriate natural frequency range is vital for designing an effective isolation system. We offer professional technical support to help you evaluate and match the best parameters to ensure system stability and reliability.

Rubber hardness is a key factor that affects the elasticity, load capacity, and vibration isolation performance of JNBE cylindrical mounts. It is usually expressed in Shore A hardness. Harder rubber (70-90 Shore A) offers higher load-bearing capacity and dimensional stability, suitable for heavier equipment where structural rigidity is important, but it provides relatively less vibration damping. Conversely, softer rubber (40-60 Shore A) has better elasticity and can absorb and cushion vibrations more effectively, especially low-frequency vibrations, but it has lower load capacity. When selecting rubber hardness, you should consider the weight of your equipment, vibration frequency, and desired level of vibration isolation. Environmental factors such as temperature, exposure to oils, or chemicals may also influence material choice. Our technical team can assist you in analyzing your specific working conditions and recommend the optimal hardness level to balance load capacity and vibration damping performance.