Simply put, roller conveyors are a form of conveyor belt that utilizes rollers - evenly-spaced rotating cylinders - to allow objects to skate across its surface. They move material from one place to another destination, and often leverage gravity or implement small motors to do so.
http://www.wxhq-group.com/roller-conveyor/

Sweater knitting machine also referred to as flat bed or v-bed knitting machine. That have two rib gated, diagonally-approaching needle beds, set at between 90 and 104 degrees to each other and are positioned so that the upper ends form an inverted "V". Sweater knitting machine has two needle beds arranged in an inverted v-shape.
http://www.tckjknittingmachine.....com/sweater-knittin

There are various methods and technologies to store various forms of energy. The choice of energy storage technology is typically dictated by application, economics, integration within the system, and the availability of resources. And they are often used as Residential Energy Storage System or Commercial Energy Storage System for Outdoor Power Supply.
http://www.suntrver.com/outdoor-power-supply/

Except for this, there are also other kinds of Honeycomb Substrates such as Ceramic Honeycomb Substrate, Metallic Honeycomb Substrate, Ceramic Honeycomb Substrate Catalyst Carrier, etc. And the Honeycomb Substrates are always used as a carrier for catalyst in chemical reactions.
http://www.sheungwell.com/wast....e-gases-purification

For a SBR Rail and Block or a TBR Rail and Block, there are many linear materials may be needed. Linear bearings are definitely one of them.
Linear bearings generally use a pad, bushing, or roller system to carry a load on a rail that need not be a straight line. The rail can be most any length, although that dimension is limited by the actuator.http://www.lsyongrun.com/tbr-rail-and-block/