VÖGELE pavers are real powerhouses. Only a high-performance track unit comes into question to translate that much power into the best possible traction. But not all undercarriages are the same – different materials are used, different dimensions are required and a different number of components are fitted. For this reason, all the components are selected to ensure that the machine delivers maximum traction and operational reliability with the lowest possible application-related wear.
In terms of tensile strength, abrasion resistance, elongation at break and tear resistance, genuine VÖGELE track pads achieve significantly higher performance ratings than their third party counterparts.
Among the most frequent reasons for undesirable wear are:
Increasing service life means:
What exactly is wear?
Wear is caused by the pressure between two elements in contact when the elements move relative to one another. In such cases, friction detaches small particles from the surfaces of both elements.
Rubber track pads must be replaced when the wear limit of the coating is reached. Replacement should take place before the bars of the steel base plate become visible. The coefficients of friction (the traction) of steel on asphalt are significantly worse than those of polyurethane or rubber. This has a direct influence on the possible feed speed and, consequently, on the machine productivity. At the same time these coatings minimise damage to the ground and prevent possible payment of damages to the customer by service providers or owners of the construction machines. After all, roads or ground that were in good condition but were damaged due to worn track pads must, in general, be repaired or remade.
|Machine type:||Wear dimension A (mm)|
|SUPER 700, SUPER 800||45||41||37||33||29||25|
|SUPER 700-3(i), SUPER 800-3(i)|
|SUPER 1100-2, SUPER 1300-2, SUPER 1100-3(i), SUPER 1300-3(i)||52||47||42||37||32||27|
|SUPER 1600-1, SUPER 1800-1, SUPER 1600-2, SUPER 1800-2, SUPER 1600-3(i), SUPER 1800-3(i), MT 3000-2(i), MT 3000-3(i) SUPER 1900-2, SUPER 2100-2, SUPER 1900-3(i), SUPER 2100-3(i)||52||47||42||37||32||27|
As with all other nut and bolt connections, the track pad bolts must also be tightened with sufficiently high torque. The following table provides the correct tightening torque values for various VÖGELE machines.
|Machine type||Dimensions (mm)||Tightening torque|
|VÖGELE bolts for rubber track pads||Ma (Nm)||Ma (ft-lb)|
|SUPER 700, SUPER 800||M 10 x 1||90 +/- 5||66 +/- 4|
|SUPER 700-3(i), SUPER 800-3(i)|
|SUPER 1100-2, SUPER 1300-2, SUPER 1100-3(i), SUPER 1300-3(i)||M 12 x 1||160 +/- 10||118 +/- 7|
|SUPER 1600-1, SUPER 1800-1, SUPER 1600-2, SUPER 1800-2, SUPER 1600-3(i), SUPER 1800-3(i), MT 3000-2, MT 3000-3(i)||1/2“ UNF thread||180 +/- 10||133 +/- 7|
|SUPER 1900-2, SUPER 2100-2, SUPER 1900-3(i), SUPER 2100-3(i)|
|SUPER 3000-3||M14x20||230 +/- 10||170 +/- 7|
|1/2“ UNF thread||180 +/- 10||133 +/- 7|
Leakage is the reason generally given to justify the premature replacement of track rollers.
However, a distinction must be made between leakage and untightness.
Due to the sliding bearing seal, the leakage of small amounts of oil is perfectly normal and, in industry jargon, is commonly referred to as ‘sweating’. This absolutely typical occurrence in the case of sliding bearing seals cleans the lapped surfaces of the sliding rings and prevents the ingress of dirt into the roller or sliding bearings in the track roller.
Track rollers with leaking or seized bearings should be replaced as soon as possible to avoid damage or wear to other track unit components, e.g. the track chain. This because the blocked rotation of track rollers can lead to rapid wear on the track chains, as it increases the frictional forces on the track roller casing and the contact surfaces of the chain links. At the same time, a pressure increase in the hydraulic system of the advance drive will be observed, since the necessary energy to propel the track unit increases. High loadings will also occur on other mechanical components, such as for example, on the tooth flanks of the drive gear or the bushes that protect the chain bolts.