... Quality Garanteed. 3.Good price Timing belt or Synchronous Belt For Industry(MXL,XXL,XL,L,H,XH,XXH ... lubrication oil required under the status of high speed when suing the chain,distance limit between the drive ... part and the slave drive part when using the gear.•Glass fiber as tensile member. ... AT551.22.750 AT10102.5550 AT20205850 Timing belt or Synchronous Belt For Industry(MXL,XXL,XL,L,H,XH, ...