XR Extra Rigid Ball Bushings
These XR Ball Bushing Bearings offer high load capacity and extreme rigidity combined with the RoundRail Advantage. Features include:
- Five times the load capacity or 125 times the travel life of conventional linear bearings. This dramatic increase in travel life reduces downtime and maximizes productivity.
- Three times the rigidity of conventional linear bearings, immediately improving machine positioning accuracy and repeatability.
- The RoundRail* Advantage combined with travel speeds up to 5 ft/s. Derating factors commonly found in linear guide products are eliminated.
- Ease of maintenance. When normal maintenance requires bearing replacement, XR Ball Bushing bearings can be quickly and cost-effectively replaced without scrapping the entire system - another shortcoming of some linear guides.
- Double acting seals at both ends to keep out contamination and retain lubrication.
- Lasting precision alignment by combining the non-wear characteristics of the XR Ball Bushing bearing with a rigid ductile iron pillow block
- High accelerations and operating speeds without a dramatic increase in the power consumption commonly seen with high friction v-way and flat-way systems
- Available in three sizes from over 1,800 authorized distributors worldwide

