Abstract: A rolling element chain is applied to retain and arrange multiple rollers at intervals in a line and has a belt assembly and multiple clamping assemblies. The rollers are cylinders mounted parallelly in the rolling element chain. The belt assembly is resilient and has two parallel bars. The clamping assemblies are formed in pairs between the parallel bars to form multiple roller holes on the belt assembly and each clamping assembly has multiple clamping protrusions. The clamping protrusions of each clamping assembly are formed in a line between the parallel bars and alternately protrude oppositely away from the belt assembly and together hold the roller in the belt assembly. Each clamping protrusion has a roller surface and at least one rib. Each rib is formed on and protrudes from the roller surface, thereby, reduces contact area between the clamping protrusions and the rollers.

Abstract: A slider for a liner guide has an inverse U-shaped body, two side covers and a retainer. The body has ball channels to rotatably receive balls. The side covers are respectively attached to ends of the body and each has an oil channel communicating with the ball channels in the body. The retainer is attached between the side covers and to the bottom of the bridge of the body to keep the balls received in the ball channels near the bottom of the bridge from escaping from the corresponding ball channel. The retainer has a resilient hole, such that the retainer can be attached to and detached from the body in a sequential process. To assemble the slider is simplified and easy. In addition, the slider further has a parallel oil channel system to synchronously feed lubricant oil into the ball channels in the slider.

Abstract: A slider for a liner guide has an inverse U-shaped body, two side covers and a retainer. The body has ball channels to rotatably receive balls. The side covers are respectively attached to ends of the body and each has an oil channel communicating with the ball channels in the body. The retainer is attached between the side covers and to the bottom of the bridge of the body to keep the balls received in the ball channels near the bottom of the bridge from escaping from the corresponding ball channel. The retainer has a resilient hole, such that the retainer can be attached to and detached from the body in a sequential process. To assemble the slider is simplified and easy. In addition, the slider further has a parallel oil channel system to synchronously feed lubricant oil into the ball channels in the slider.