Accumulation power of telescope-feed limited
Could not support heavy duty accumulation
Abrasion-resistance
Long lifespan
Accumulation power adjusted by nut of end, make accumulation power accurate and steady
Bearing in end of sprocket dis-mountable, nice maintenance and replacement
Precision ball bearing fixed by impact in steel bearing house, tight and durable
Tight steel bearing unit could bear more axial force than plastic bearing unit
Operation temperature: -5 to +40°C