FR/LR Series Vee Rail Guide Rollers
FR/LR Series Track Roller Bearings Guide Bearings
The installation and preloaded of the FR..,FR..R and LR,LR..R series guide roller bearings is finished through the eccentric inner ring. While the FR..Z and LR..Z series roller bearings are the concentric structure in design.
There are two blind holes on one side of the inner ring of the eccentric roller bearings, which are used to adjust the clearance.
The backlash setting and the pre-tensioning of the rollers takes place via the eccentric hub of the rollers of the series FR, FRor LR, LR.
The FR…Z and LR…Z series are the concentric models. In the eccentric rollers, the inner bolts are provided with two holes. These allow for the adjustment of the backlash. If a roller is located in its zero position, the teeth backlash will be the standard value of 0.05 mm flank clearance.
The service life of the system will be reduced by excessive tensioning. With too little tension the rollers will not run, or will wear due to the poor meshing.
Friction:
The roller guides have a very low coefficient of friction. This value is slightly increased by the fitting of wipers to the rails.
Corrosion resistance
Elements of the series with the suffix…R are available in stainless steel.
Very bearing could supply these products as follows：
FR10 ,FR10Z ,FR15 ,FR15Z ,FR20 ,FR20Z ,FR22 ,FR22Z ,FR25 ,FR25Z ,FR35 ,FR35Z ,LR10 ,LR10Z ,LR15 ,LR15Z ,LR20 ,LR20Z ,LR25 ,LR25Z ,LR35 ,LR35Z
Special request bearings could be ordered according to the requests