In accordance with an example embodiment, a continuous belt may include an outer surface having a first edge spaced apart from a second edge defining a belt width, and a first wear indication positioned on the outer surface near the first edge and having a first width, the first width is less than the belt width, and the first width represents the amount of allowable wear of the continuous belt.

A driving force transmission mechanism includes a first member being arranged inside an insertion section of an insertion apparatus extending along a predetermined axis, a second member being arranged to be positioned on a movement locus in a circumferential direction of the first member. The mechanism includes a cover member as an outer coat of the insertion section. The cover member is arranged between the first member and the second member to come in contact with at least the second member. The mechanism also includes an indicator being provided on the cover member. The indicator indicates in the cover member a change in state of a surface in contact with the second member.

For showing a wear state of a V-ribbed bell, which is constructed with a belt backing (1), a tension strand (2) arranged underneath the belt backing and a carcass (4), in which there are formed, in the longitudinal direction of the V-ribbed belt, V-ribs (7) which run parallel to one another, have in each case an interspace (8) with respect to one another and have inclined rib flanks (12), wherein the interspaces (8), formed for the engagement of pulley ribs (11) of a V-belt pulley (10), between two V-ribs (7) of the V-ribbed belt extend as far as a rib base (9) of the V-ribs (7), according to the invention a removal of material in the rib base (9) is detected as a criterion for the wear state.

A diagnostic system of a vehicle for diagnosing a drive belt of a continuously variable transmission. A diagnostic circuit detects or predicts a fault of the drive belt based on an operating parameter received from a sensor associated with the vehicle during a predetermined diagnostic period.

A tracked vehicle includes a drive system and a controller. The drive system is configured to drive a track of the tracked vehicle. The drive system includes an electric motor, a gearbox, and a first positional sensor. The gearbox includes a first planetary gearset, a second planetary gearset, a first clutch, and a second clutch. The first positional sensor is configured to measure translation of a piston of the first clutch and the second positional sensor is configured to measure translation of a piston of the second clutch. The controller is configured to use the measured translation of the piston of the first clutch and the measured translation of the piston of the second clutch to operate the electric motor and the gearbox.