Tube and it's nomenclature
Typical Part-nomenclature and marking on Tubes :

Size Marking |
: |
Tyre Size for which tube is meant |
BUTYL |
: |
Made of Butyl Rubber which is best known rubber for Good Air Retention . |
Mould Number |
: |
for Manufacturer's information |
Month Code Circles |
: |
For Tracing Back Manufacturing operations |
BLUE Line |
: |
Color Identification of BUTYL Rubber |
Tyre Size Marking Split up : |
Bias Construction : 10.00 - 20 |
Radial Construction : 10.00 R 20 |
“10.00” Tyre Section width in Inch |
“10.00” Tyre Section width in Inch |
"-" Bias Construction |
"R" Radial Construction |
"20" Nominal Rim Diameter in Inches |
"20" Nominal Rim Diameter in Inches |