How do you read V belt numbers?

How do you read V belt numbers?

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. An example would be 4L460, which would be 46″ long outside, 44″ inside.

What does Li mean on V belt?

inner length
Li = belt inner length. La = belt outer length. Ld = belt working length (Ld = Lw)

Whats the difference between SPZ and XPZ belts?

The XPZ has better flexibility, and the diameter of the pulley that can be used is smaller than that of the SPZ. Generally, the smallest pulley diameter that can be used for XPZ V-belt is 56mm; while the smallest pulley diameter that can be used for SPZ is 63mm.

How do you read the serpentine belt numbers?

Read the number that follows the letter. 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 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.

What does LW mean in V-belts?

Every v-belt has these three: effective length (Lw), outer length (La), inner length (Li).

What is the effective length of a V-belt?

Belt Effective Length: The effective length of a belt is the length about the effective outside diameter of a sheave at a specified tension. The effective outside diameter of a sheave is measured where the groove top width is a dimension as specified by RMA, ASAE or SAE standards.

How are V belt pulleys measured?

The first thing you want to do is measure the outside diameter (O.D) of the pulley. Step 2: Next, we’ll measure the pitch diameter (P.D), this is the measurement that represents the diameter of the belt it’s self as it rides in the pulley.

What is the effective length of a V belt?

What are the different types of V belts?

There are three common V belt types: Classical V-belt (classified by their dimensions from A to E), Narrow V series (classified by their dimensions 3V, 5V, and 8V), and light duty Fractional Horsepower belt (classified by their dimensions 2L, 3L, 4L, 5L).

Are notched V belts better?

Notched belts can use the same pulleys as cross-section standard V-belts. They run cooler, last longer, and are about 2% more efficient than standard V-belts. 2 In contrast, V-belts have a sharp reduction in efficiency at high torque due to increased slippage.