400 mm Rubber Tracks for Excavators and Mini Excavators

Check 400 mm rubber tracks by track marking and size group

For 400 mm rubber tracks, the width alone is not sufficient for clear technical assignment. Before matching a track to a machine model, pitch, number of links, version, guide geometry and the existing track marking must be checked.

Different size logics exist in the LIS® range for 400 mm rubber tracks. These include variants with 72.5 mm pitch as well as size groups with 73 mm, 75.5 mm, 107 mm and 144 mm pitch. These specifications must be matched on an article-specific basis with the existing track and undercarriage.

72.5 mm pitch: do not mix number of links and version

For 400 mm tracks with 72.5 mm pitch, different numbers of links are used in the LIS® range. Relevant examples include 400/68/72.5N, 400/70/72.5W, 400/72/72.5R, 400/74/72.5Y, 400/76/72.5N and 400/82/72.5W.

Selection by 400 mm width or by machine model alone is too imprecise here. Whether a version such as N, W, K, R or Y is suitable depends on the track marking, inner guide, sprocket engagement and undercarriage geometry.

Match LIS® article data with market-standard size notation

For rubber tracks, size data may be arranged differently depending on the data source. LIS® articles such as 400/74/72.5R are displayed in the shop in the order width, number of links and pitch. In the market, the same technical size combination is often searched as 400x72.5x74R or 400x72,5x74R, meaning width, pitch and number of links.

This different order of notation must be considered during identification. For technical selection, the order of the specification is not decisive. The decisive factor is the match between width, pitch, number of links and version. If the existing track is still readable, the marking should be compared directly with the article data in the LIS® shop.

Check 107Y, 144Y, 73W, 73SR, 73Y and 75.5Y separately

Size groups such as 400/46/107Y or 400/36/144Y do not follow the 72.5 mm logic. Variants such as 400/70/73W, 400/72/73W, 400/74/73SR, 400/76/73Y, 400/72/74N and 400/74/75.5Y must also be checked separately.

These versions are not replacement variants for each other. A different pitch, number of links or marking can indicate a different undercarriage variant. Further article-specific markings, for example C, should only be assessed using the respective article data, track marking and machine assignment.

Check machine model and undercarriage variant together

Depending on the article assignment, 400 mm rubber tracks are used in different machine environments. Relevant applications may include excavators, mini excavators and compact machines from manufacturers such as Kubota, Caterpillar/CAT, Komatsu, Volvo, JCB, Hitachi, Takeuchi, Bobcat or Wacker Neuson.

Manufacturer or model names alone are not sufficient for clear ordering. Before ordering, machine model, series, year of manufacture, existing undercarriage variant and technical track dimensions should be checked together. The decisive factor remains the correct combination of size group, version and undercarriage geometry.

Assign track marking, pitch and number of links clearly

If the existing rubber track is still readable, the marking should be used as the first technical reference. Width, pitch, number of links and version are relevant. If the marking is no longer readable, machine model, undercarriage variant and existing components should also be used for identification.

For 400 mm rubber tracks, this check is particularly important because several variants exist with the same width but different pitch, number of links or guide geometry. An incorrectly assigned track may not work correctly with the drive sprocket, idler and track rollers.

Check adjacent undercarriage components if identification is unclear

If identification is unclear, adjacent undercarriage components should also be checked, especially drive sprockets, idlers, track rollers and track adjusters. A 400 mm rubber track must match the existing undercarriage geometry, not only the machine designation.

400 mm rubber tracks, excavator tracks and rubber crawler tracks

Depending on market terminology, 400 mm rubber tracks may also be referred to as 400 mm excavator tracks, rubber crawler tracks, tracks for mini excavators or rubber tracks for compact tracked machines. This category covers rubber tracks for machines with rubber-track undercarriages, not steel tracks.

If a steel-track undercarriage is required instead of a rubber track, the relevant undercarriage categories are track chains, complete track chains, track shoes or rubber pads and rubber plates, depending on the required component.

Further rubber track widths

LIS® 400 mm rubber tracks are used in OEM quality. If the existing track has a different width, the main category rubber tracks leads to further widths from 150 to 900 mm. Common technical entry points also include 380 mm rubber tracks, 420 mm rubber tracks, 450 mm rubber tracks and 500 mm rubber tracks.