... wheels supporting elevator in the following species: φ120,φ150,φ164,φ200,φ220,φ240,φ280,φ320,φ360,φ400,φ440,φ480,φ500,φ520,φ540 ... . Advantages of MC Nylon guide wheel supporting elevatorl Low cost l Low specific weightl great rigidity and hardnessl high impact valuel ...