Smalley wave ring bearing 
 1. Smalley can eliminate single-ring bearing bearings beating waves and reduce noise. Stability of light / medium pressure to eliminate the ball bearing inner and outer rings between and among the beat. Preloading can reduce the vibration caused by periodic or aperiodic bearing damage and wear caused. 
 2. Single narrow surface wave ring for the hydraulic pressure cylinder pressure seal design, but also for work where space is limited. Wave circle and sets with only a small gap, wave ring with the assembly to ensure concentricity between. When the compression wave ring, wave ring by the radial elongation to compensate for the gap, thus ensuring the assembly gap between internal and external parts, to avoid the wave spring pressure to the shaft. 
 3. Multi-layer custom wave ring: smalley use per customer specific design of multi-wave cycle