1.for high gear ratios, high belt speeds,small pulley diameters and tension rollers;                                                   

2. Suited for counterbending;                                            

3. Running smoothly; 

4.  Resistant to wearing and aging；

5. Temperature range: from -20℃ to +100℃(CR);

                                          from -35℃ to +130℃(EPDM)