Day 153 Vocabulary I Have to Understand for Work
I have encountered so much new vocabulary through my work during December. I understand that my customer service performance still does not fully meet customers' requests, but I want to compliment myself on my decision to try something new. Although I struggle with everything each day, I also feel that I have gradually become tougher.
Today, I am writing down the meaning of each number related to tyres and wheels as follows:
Tyre Size: 175/54R14
175:
- The width of the tyre in millimeters.
54:
- The aspect ratio, meaning the height of the tyre's sidewall as a percentage of its width. Multiply this ratio by 100 to get the percentage.
R14:
- The wheel size (diameter) in inches that matches the tyre.
Wheel Size: PCD 114.3 x 5 Studs, 18 x 7.5J, Offset +55, Centre Bore 73mm
PCD (Pitch Circle Diameter): 114.3 mm with 5 studs.
- It fits a vehicle with a 5-bolt pattern and a 114.3 mm bolt circle diameter.
18 x 7.5J:
- 18: The diameter of the wheel in inches.
- 7.5J: The width of the rim in inches, with "J" indicating the rim profile.
Offset +55 mm:
- The mounting surface is 55 mm outward from the centerline of the wheel, closer to the outer edge.
Centre Bore 73 mm:
- This indicates the diameter of the hole in the center of the wheel that fits onto the hub.
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