Profile XPB - 5VX - 16.3x13 MM

We offer a large selection of XPB V-belts from the ConCar brand in the standard XPB profile with dimensions 16.3 × 13 mm. The XPB profile is a timing narrow V-belt that has been developed for efficient V-belt drives where high power transmission, high flexibility and long service life are required. ConCar XPB V-belts are used in many types of machines and systems, including industrial machines, ventilation systems, compressors, pu , agricultural machines, woodworking machines and other mechanical installations where a strong and reliable transmission belt is required.

XPB V-belts are a stronger and more flexible alternative to classic B and BX V-belts. An XPB V-belt is based on the narrow SPB profile, which can typically transmit approximately 30% more power than a regular classic B V-belt, while the timing underside makes the belt more flexible. This makes the XPB profile an obvious choice if you want to upgrade an existing belt drive without necessarily changing the pulley. B, BX, SPB, XPB and 5L V-belts can in many cases run in the same type of pulley, when the profile, length and space conditions suit the machine.

XPB V-belts from ConCar are timing, unlike an SPB V-belt, which is usually toothless and fabric-wrapped. The timing construction reduces bending resistance and makes the belt better suited for smaller pulleys, high speeds and compact belt drives. The teeth on the inside do not mean that the belt pulls on the teeth like a timing belt. The power transmission still occurs through the friction between the belt flanks and the V-grooves of the pulley.

The belt itself is made of durable neoprene rubber with polyester reinforcement, which helps the belt maintain its length during operation. The combination of a narrow profile, serrated underside and strong reinforcement results in a belt that is both flexible and efficient, while also being able to handle higher loads than many classic V-belts of the same width.

The power is transferred through the friction between the belt flanks and the V-groove of the pulley. This means that the belt must lie correctly in the pulley so that the side contact is uniform. When installed correctly, the belt must not bottom out in the pulley, as the power should not be transferred via the bottom of the belt, but via the sides. If the belt lies too deep, too high or runs crookedly in the groove, this can cause increased heat, noise, slippage or unnecessary wear on both the belt and pulleys.

The XPB profile is often used when higher power transmission is desired than with classic B or BX V-belts, but where the belt must also be more flexible than a regular fabric-wrapped SPB V-belt. With dimensions of 16.3 × 13 mm, the XPB is a strong and efficient profile that is well suited to modern V-belt drives where high load capacity, good contact surface and stable operation are desired. The timing narrow profile makes the XPB belt suitable for many systems where operational reliability, strength and efficient power transmission are important factors.

If the belt drive is particularly heavily loaded, XPB V-belts can also be purchased as a reinforced version with up to 50% higher strength. This can be an advantage on machines with high loads, many starts/stops, strong accelerations or continuous operation, where a regular standard belt wears out faster than desired. A reinforced XPB V-belt can therefore be a good choice if you want a longer service life, greater safety or better operation under loaded conditions.

When choosing a new ConCar XPB V-belt, it is important to check both the profile and the length. Here, it is important to pay special attention to the fact that different V-belt profiles are often specified in different length measurements. Classic B and BX V-belts are typically specified in internal length (Li), while SPB and XPB V-belts are usually specified in effective length (Ld/Lw). 5L V-belts, on the other hand, are often specified in external length (La). Therefore, two belts that fit the same pulley can have different length designations, even though they are close to each other in physical size in practice.

If you are going from a standard classic B or BX V-belt to an XPB V-belt, you should therefore not only compare the number in the belt designation. A B-belt, a BX belt, an XPB belt and a 5L belt can be measured in different ways, and it can lead to incorrect choices if you only compare the length directly. Always compare the existing belt's marking with the stated measurements for Li, Ld/Lw and La, or contact us if you are in doubt about which length corresponds to the old belt.

ConCar XPB V-belts are a good choice for those who want an affordable, strong and flexible V-belt for modern V-belt drives. The timing construction, polyester reinforcement and stable XPB profile make the belt suitable for many types of machines where high power transmission, smaller pulleys and long service life are required.

If you are unsure which ConCar XPB V-belt is right for your machine, we are happy to help. Send us a picture of the existing belt, the belt marking or information about the machine and we will find the correct replacement. We can also advise on alternative lengths and help you find a suitable replacement belt if the original belt is worn, discontinued or can no longer be read.