How do I know what my V belt is?
V-belt cross sections can be identified by their top width and depth dimensions. For example, a v-belt with a top width of 21/32” and a depth of 7/16” is a “B” belt. You can also use our Browning Belt Rule that includes a gauge to help easily identify belt type.
How do you read V belt sizes?
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 classic V belt?
The classic v-belt is the most tried and true style of v-belt in the market. Also known as light duty v-belts, they are designed with a 40° angle to “wedge” the belt into the groove of the pulley. The greater the load, the greater the wedging action.
What widths do V-belts come in?
V-Belt Dimensions
| V-Belt Type | Top Width | Height |
|---|---|---|
| A | 1/2″ | 5/16″ |
| B | 5/8″ | 13/32″ |
| 3VX | 3/8″ | 21/64″ |
| 5VX | 5/8″ | 35/64″ |
Are V belts measured inside or outside?
Inside Belt Lengths: The inside length is measured with flat pulleys or a tape measure. As with the outside length, the inside length varies with the manufacturer. This length should not be used. 3.
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).
How do you determine belt size between two pulleys?
How to calculate a belt length?
- First, determine the diameter of the larger pulley. Measure the diameter of the larger pulley.
- Next, determine the diameter of the smaller pulley. Measure the diameter of the smaller pully.
- Next, measure the distance between pulleys.
- Finally, calculate the belt length.
Are all V belts the same?
V-Belts and Wedge Belts are commonly used in industrial applications and also in auto repairs. Their names describe the type of belt as when the belts themselves intersect; they form a V shape or wedge shape. However, not all V-belts are the same, some will perform better at getting you closer to your end goal.
Why do V belts fail?
Missing cogs can cause belts to slip and fail, when it is discovered there are teeth missing, the belt should be changed immediately. The most common reasons your belt could be missing a cog are excessive heat, the pulleys are too small or misaligned. It can also be caused by improper or prolonged storage of belts.
What is the strongest V-belt?
Kevlar v belts
Overall the Kevlar v belts are stronger and standout as the primary choice for several applications.
Does belt length affect RPM?
Re: Belt size and speed. How does it work? the belt itself doesnt affect the speed, if it is the right thickness for the pulleys. The actual speed of the belt is measured at its center, not its inside or outside edges.
What is the strongest V belt?