Servo Polytech Coimbatore [P] Ltd. Manufactures ABS Plastic Coupling Type Drive Pulleys. Servo Polytech Coimbatore [P] Ltd. Has been awarded ISO 9001:2000 certifications. ABS Plastic Coupling Type Drive Pulleys are suitable for all kinds of spinning and doubling frames. ABS Plastic Coupling Type Drive Pulleys is available with 15% glass filled is used to with stand high wear & tear at enormous friction and heat generated by synthetic spindle tape running at higher RPM in machine. This drive pulleys are preciously molded to achieve two gram unbalanced mass, which avoids vibration at higher RPM. Aluminum alloy pressure die-casted adopter and bush is used to fix the drive pulley. It can also be available with hollow shaft.