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Push-Pull Casing and Cores

For light load applications casing made from nylon can be used. For heavier loads casing made from a round or half round wire tightly wound to resemble a closed spring is good for most applications. This type of casing is flexible, resists kinking and can be clamped or terminated without distortion of the wall. The casing can be ordered with a plastic coating. Casing with a plastic liner offers reduced friction and less start-up inertia.
Casings available from stock are shown in the chart below. For other types of casing such as stainless steel and other sizes consult factory.

Lubrication

Generally, lubrication is not advised in the casing. Lubricant tends to collect dirt, which impedes the movement of the core inside the casing. The core cable can perform efficiently with little or no lubrication. If lubricant is desired for a particular application, it must be specified by the customer which lubricant to be applied to the core cable prior to the assembly.

End Terminals for Core Wires The simplest core is a solid wire which is adequate for low input loads and minimum bends. If the force is only in the pull direction, a stranded cable can be used with much tighter bends. Simple terminations can be provided on a solid core wire by forming the high tensile steel wire in the typical shapes shown below. Some catalog fittings, such as eyes, end plugs, etc. can be used on solid wire. Please consult factory.

End Terminals for Core Cables At right are shown typical cable fittings used as push-pull cable core terminals. The dimensions for these should be taken from our catalog using the proper cable core size. Special terminals can also be manufactured.