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RUBBER & SILICONEStandard parts. Custom solutions.

Rubber wire caps

Rubber wire caps

Rubber wire caps are best known for protecting the ends of wires but they can also be used for anything that resembles the shape of a wire such as tubes, pipes, and rods. These caps come in a variety of colors, thicknesses, and sizes. The different colors help distinguish the pairs of wires being held together from one another. The different sizes of the rubber wire caps facilitate you in choosing the cap that is the best fit for your wires. To try for a snug fit, choose a cap whose size is slightly smaller than the diameter of the wires so that the grip is firm and this way, you wouldn’t need to glue the wires together. Coming to the thicknesses of the wire caps, there happens to be a trade-off. The thicker the wire cap, the better will be its sturdiness and the capacity to protect the wires from exterior damage by factors like temperature, pressure, corrosion, oxidation, UV, dirt, and humidity. However, if the wire cap is thinner, it is more lightweight and the group of wires connected via the wire caps is able to be moved around easier.
Additionally, the rubber wire caps are durable enough to withstand mechanical compression and constriction. These caps also increase the friction between the group of wires that are amassed together, providing a tighter grasp for laying out the wiring network adaptably and strongly. Not to mention, the rubber wire caps also keep the ends of the wires from taking wear and tear, which keeps them in brand new condition over the years.
Thus, with such caps, there is no need to pre-twist the wires, soldering, using electric tapes, or color-coding them, as each of these purposes is efficiently fulfilled by the rubber wire caps. Go ahead and use the caps for wiring in your lamps, speakers, audio systems, automobiles, households, offices, or any other place demanding electrical utility.

All dimensions are in mm​

Rubber Cap Size Catalog

Compare the internal and external dimensions of rubber caps against the part being covered.

Custom colors are available to your Pantone color code. Include the code in your inquiry.

Rubber Caps-RSE

Compare A (inner diameter), B (outer diameter), C (inner depth) and D (total height), in mm.

Dimension guide
Rubber cap — A inner diameter, B outer diameter, C inner depth, D total height
Profile reference. Use the dimension letters and units in the selected table and confirm the part drawing.
Product appearance
Rubber Caps-RSE — product view
Illustrative product appearance. Refer to the selected row and part drawing for dimensions.
Part No.ABCD
RSE3.7-7-93.77911
RSE4.7-8-94.78911
RSE5.7-9-105.791012
RSE6.7-10-106.7101012
RSE7.7-11-117.7111113
RSE8.7-12-128.7121214
RSE9.7-14-139.7141315
RSE10.7-15-1410.7151416
RSE11.7-16-1511.7161517
RSE12.7-17-1512.7171518
RSE13.7-18-1513.7181518
RSE14.7-19-1514.7191518
RSE15.7-20-1615.7201619
RSE16.7-21-1616.7211619
RSE17.7-22-1617.7221619

Need a different size? Share your drawing, mating dimensions and intended use to discuss a suitable part.

Discuss Your Requirements

Product specifications

Product form
Protective cover fitted over a component end
Application focus
Wire or terminal ends and pipe or conduit ends. Size the part against the selected assembly.
Dimensions to confirm
Mating outside dimensions, cover depth, cavity and wall thickness. Match these to wire or terminal ends and pipe or conduit ends.
Installation discussed
Adhesive bonding. Identify the chosen retention method and the surface or hardware it engages.
Exposure to evaluate
Sunlight or UV, moisture and dust or debris. Validate the selected material under the combined conditions.
Cover retention
Check the installed overlap and pull-off force on the actual end profile.

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