Guide wheel bearing  Series SGrollers are the most widely-use and economy product among thelinear motion track rollers, and they can suit to the cylindricaltrack.
  There are two contact points between the roller and track,so the contact function is favorable.
  Rollers feature double row angular contact ball bearing inits internal structure design and a thick-walled outer ring, sorollers can accommodate higher loads.
  Rollers are made of high-quality bearing steel, processed byheat treatment and precision grind, and are filled with a longservice life, high-grade and multi-purposes grease. Rollers mountthe metal shield (ZZ) or rubble seal (2RS) to prevent the dust