Camouflage forest OUTER WRAP
Cable outer casing, also known as cable housing or cable sheath, is
a protective covering used for control cables in various
applications such as bicycles, motorcycles, automotive vehicles, or
mechanical systems. It encloses and protects the inner control
cable, providing a smooth and reliable interface between the
control mechanism (e.g., brake lever, shifter) and the component
being controlled (e.g., brake caliper, derailleur).
Here are some key aspects of cable outer casing:
1. Material: Cable outer casing is typically made of a durable and
flexible material, such as plastic, reinforced polymer, or metal
alloy. The material is chosen to provide strength and protection
against environmental factors, including moisture, dirt, and
mechanical stresses.
2. Diameter: Cable outer casing comes in various diameters
depending on the application and the size of the inner control
cable it will encase. Common sizes for bicycle control cables range
from 4mm to 5mm in diameter, while automotive or industrial cables
may have larger diameters.
3. Construction: Cable outer casing is often constructed in layers.
The innermost layer consists of a low-friction lining, such as
Teflon or a similar material, to reduce friction between the
control cable and the casing. The outer layers provide structural
strength and protection.
4. Compression (Brake) or Compressionless (Shifter): Depending on
the type of control cable, the outer casing may be designed as
compression or compressionless. Brake cables typically use
compression-type casing, which compresses slightly when the brake
lever is engaged, transmitting force to the brake caliper. Shifter
cables often use compressionless casing for precise and immediate
shifting response.
5. End Caps: Cable outer casing is usually equipped with end caps
or ferrules at both ends. These end caps secure the casing to the
cable stops or housing guides, preventing fraying and providing a
clean entry point for the control cable. Some end caps also feature
seals to protect against moisture and dirt.
When replacing or selecting cable outer casing, it is important to
consider factors such as compatibility with the specific control
cable, the diameter required, and any specific recommendations from
the manufacturer or component supplier. Proper installation,
including routing the casing correctly, securely attaching it, and
trimming it to the appropriate length, is crucial for optimal
performance and longevity of the control cable system.
Regular inspection and maintenance, including checking for signs of
wear, damage, or moisture ingress, are recommended to ensure the
reliability and longevity of the cable outer casing.
