How do you read V belt numbers?
By Rachel Newton
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. An example would be 4L460, which would be 46″ long outside, 44″ inside.
What is a Type B belt?
Type B cross sections are available in many lengths. These belts are constructed of highly engineered, high performance and heat resistant materials. All B V-belts are manufactured to meet RMA standards for length, dimensions and matching. Our belts are also manufactured to run interchangeably in matched sets.
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).
What is V belt pitch?
Belt Pitch Length: The pitch length of a belt is the length at the pitch diameter of the sheaves being used. The pitch length is obtained by adding the pitch circumference of one sheave to twice the center distance between two equal diameter sheaves at a specified tension.
How deep should Av belt sit in a pulley?
Figure 58.4 is an illustration of how a V-belt should sit in the pulley groove. The top of the belt should be within -inch of the outer surface of the pulley. If the belt top is deeper in the groove, the groove or belt is worn, which can shorten the remaining belt life by as much as 50 per cent.
Do V belts come in half sizes?
V-Belts come in many sizes and lengths. Click the lengths to see our full selection of that type of belt or for that specific length. …
What does BX mean on V belts?
Cogged V-Belts BX Series BX v belts are a “cogged” style belt that can interchange on the same pulleys as “B series” or “5L series” belts. The BX belts can generate higher horsepower ratings due to the raw edge construction, which grips the pulley much better.
