1.ISO9001:2000
2.high precision
3.long life-span(more than 50000 hours)
4.low rotation resistance
5.well energy saving effe

Features of NC standard roller:

1.  Low radial  runout:roller are made of precision pipe to ensure well-balanced rotation.The radial runout of outer ring will be definitely in the area of following; 

2.  Low Rotation Resistance,Energy-Saving:The rotation resistance factorof our rollers stay less than 0.01 though it varies with the roller dia.and bearing bore.However,for the NC rollers,employ simulant friction resistance factor =0.020 for calculation of conveyor drive horsepower in view of

other operating conditions involved,for other common rollers,employ simulant friction resistance factor of our products in the way of energy-saving.

3.Permanent lubrication:NC rollers are of factory-greassed,sealed-for-lifetime,fitted with precision deep-groove ball bearings(with ZZ shields)at both ends,no extra lubrication is required.