New Product Announcements
Modern Machine Shop
The DryLin WJRM hybrid linear bearing system from Igus combines rolling and sliding motion to reduce drive force in applications involving the manual adjustment of machine guard doors, partitions and adjustable locks. The system consists of a plastic, self-lubricating sliding sleeve bearing and a polymer roller. The roller bearing carries the main load, reducing the required driving force by a factor of 4 to 5, the company says. The system can be used with machine doors weighing as much as 110 lbs.
The system’s rollers fit inside the linear profile without increasing height, which remains at a low profile 0.71" (18 mm). Standard linear guide profiles can be used, which are available in three styles for shaft diameters of 0.39" (10 mm): as individual rails, or as double rails with distances of either 1.57" (40 mm) or 3.15" (80 mm) between rails.
The new hybrid bearing is part of the DryLin W linear guide product line. These linear guides work without lubrication. The plastic liners are made from Iglide J or Iglide J200, both of which are low-wear components and have a very low coefficient of friction. They are also resistant to chemicals and vibration, and absorb negligible amounts of moisture.