How do you read V belt numbers?
Automotive belts start with either 4L (12.5mm wide) or 3L (9.5mm). The number following it is the outside length of the belt in tenths of inches. The inside length of the belt is typically 2″ less for a 4L belt, and 1-1/2″ less for a 3L belt.
What size fan belt do I need?
Use a cloth measuring tape (not a steel one) and wrap it around the outside of the belt. You also use a thin string to take this measurement and place it on a steel tape to get the correct length. Next, for “A” Belts (1/2” width) subtract two-inches from the outside measurement to select the correct V-belt.
What is the fan belt number?
This number represents the length of the inside of the fan belt (as opposed to the number in the standard automotive belt, which represents the outside circumference). For example, if the number is 46, that means the inside circumference of the belt is 46 inches.
How do I read my Dayco belt number?
On the scale underneath the moveable pulley, the outer lines on the blue plastic will indicate the length of the belt in millimetres and inches. In this example the number 2045, which indicates a belt length of 2045 millimetres.
What is a 5L belt?
5L Belt = 5/8 (.625) Inches Width x 3/8 (.375) Height. 3V & 3VX Belts = 3/8 (.375) Inch Width x 5/16 (.3125) Height.
How do you read a serpentine belt code?
EXAMPLE: 6PK1003 » 6 – This indicates the number of ribs on the belt; therefore, this is a 6-rib belt. » PK – The “P” indicates a metric designation, and the “K” indicates the belt is automotive per SAE J1459. » 1003 – This is the effective length of the belt expressed in millimeters.
How do I measure my belt size?
Measure from center of one shaft to the center of the other shaft, then double it. Now take you wrap and add it the the doubled center distance and you have you belt length. Note that if you are using pitch diameters on a v-belt sheave you will need to use the pitch diameter on your v-belt.
Is the alternator belt the same as the serpentine belt?
Sometimes called a fan belt, alternator belt, or accessory drive belt, the serpentine belt is spun by the engine crankshaft and, in turn, spins, or “drives”, the accessories. Cars of the past relied on multiple drive belts, but today’s vehicles (usually) count on just one, the serpentine belt.
What does 4L mean on a belt?
4L Belt = The Outside Circumference (OC) – Minus 2 Inches. ( Example 4L320 = 30 Inch Inside Circumference) 5L Belt = The Outside Circumference (OC) – Minus 3 Inches. (
What is a Gilmer belt?
A gilmer belt was a brand or trade name for a mechanical belt used for transferring power between axles in a machine. Gilmer belts use trapezoidal teeth to engage matching grooves on toothed pulleys in order to maintain synchronicity between moving parts.