An electric powered self-propelled driving machine for working a ground comprising a bearing frame adapted to remain at a given distance from a reference surface when the machine is assembled, kinematic mechanisms coupled to the bearing frame and adapted to be arranged close to said reference surface when the machine is in use, electric motorization means, coupled to the bearing frame and operatively connected to the kinematic mechanisms, adapted to be electrically operated to move the bearing frame, a power supply cable adapted to be electrically connected to the electric motorization means and to be connected to an electric power supply source, a reference rotor around which the power supply cable is wound to form an electric coil of predefined length, coupled to the bearing frame and operatively connected to first rotation means adapted to be operated to unwind/rewind the power supply cable from/onto the reference rotor at least during the advancement of the driving machine (1) to perform a working of a ground, and a distribution arm, operatively connected to the bearing frame and supporting the power supply cable so as to at least limit the interference thereof with the kinematic mechanisms during the advancement of the driving machine on the ground. In an innovative manner, the driving machine provides for the reference rotor, and the electric coil wound thereon, to be arranged in the central part of the bearing frame so that both the front part and the rear part of the bearing frame are frontally free and directly facing the external environment in order to accommodate, removably, both pieces of equipment for working the ground.

An electric powered self-propelled driving machine for working a ground comprising a bearing frame adapted to remain at a given distance from a reference surface when the machine is assembled, kinematic mechanisms coupled to the bearing frame and adapted to be arranged close to said reference surface when the machine is in use, electric motorization means, coupled to the bearing frame and operatively connected to the kinematic mechanisms, adapted to be electrically operated to move the bearing frame, a power supply cable adapted to be electrically connected to the electric motorization means and to be connected to an electric power supply source, a reference rotor around which the power supply cable is wound to form an electric coil of predefined length, coupled to the bearing frame and operatively connected to first rotation means adapted to be operated to unwind/rewind the power supply cable from/onto the reference rotor at least during the advancement of the driving machine (1) to perform a working of a ground, and a distribution arm, operatively connected to the bearing frame and supporting the power supply cable so as to at least limit the interference thereof with the kinematic mechanisms during the advancement of the driving machine on the ground. In an innovative manner, the driving machine provides for the reference rotor, and the electric coil wound thereon, to be arranged in the central part of the bearing frame so that both the front part and the rear part of the bearing frame are frontally free and directly facing the external environment in order to accommodate, removably, both pieces of equipment for working the ground.

A ground-engaging track system includes a center tread idler having an inner surface defining an idler axis of rotation, and an outer tread surface. The ground-engaging track system further includes a track contacted by the idler between parallel track chains and defining a track pitch dimension. The outer tread surface defines an outer diameter dimension, and a ratio of the track pitch dimension to the outer diameter dimension is between 28% and 37%. The outer diameter dimension may be one of the outer diameters of Table 1. The idler and track contact during service at fixed bushing-idler contact locations so as to bias wearing away material of the idler to form pockets imparting a sprocketed configuration to the idler during service.

A track roller includes a roller shell, a roller shaft extending through the roller shell, and a collar. The collar includes a center body interference-fitted upon the roller shaft, and a seal carrier. A clearance extends radially between a center body outer surface and a face seal assembly held in axial compression between the seal carrier and the roller shell. An oil void is formed in the center body and fluidly connected to the clearance to provide an increased oil volume for lubrication and heat-dissipation.

A track roller includes a roller shell, a roller shaft extending through the roller shell, and a collar. The collar includes a center body interference-fitted upon the roller shaft, and a seal carrier. A clearance extends radially between a center body outer surface and a face seal assembly held in axial compression between the seal carrier and the roller shell. An oil void is formed in the center body and fluidly connected to the clearance to provide an increased oil volume for lubrication and heat-dissipation.

A track system for a rubber tracked work vehicle comprises temperature sensor and an antenna attached to a track wheel. The antenna is connected to the temperature sensor to transmit to a receiver a temperature signal generated by the temperature sensor. A work vehicle comprising the track system and a temperature measuring method are also disclosed.

A track system for a rubber tracked work vehicle comprises temperature sensor and an antenna attached to a track wheel. The antenna is connected to the temperature sensor to transmit to a receiver a temperature signal generated by the temperature sensor. A work vehicle comprising the track system and a temperature measuring method are also disclosed.

A monitoring system of at least one physical magnitude in at least one undercarriage component, the system includes at least one sensor device arranged in an undercarriage component, the sensor device configured to detect the temperature inside the undercarriage component and to generate wireless measurement signals that include temperature representative data; a gateway that includes a gateway wireless transceiver; a central processing unit operatively connected to the gateway wireless transceiver and configured to receive and store the wireless measurement signals, and a wireless access point operatively connected to the central processing unit and configured to receive said wireless measurement signals stored in the central processing unit and to generate corresponding wireless measurement signals, the wireless access point acting as an entry point for accessing the temperature representative data detected by the at least one sensor device.

A wheel assembly for a track system of a light heavy-duty vehicle is disclosed. The track system has a frame and an elastomeric endless track. The wheel assembly includes a wheel, an axle and first and second bearings. The wheel defines a wheel cavity in which the axle is receivable. The first and second bearing assemblies are disposed in the wheel cavity. The first bearing assembly is at a first end portion of the axle, and the second bearing assembly is at the second end portion of the axle. The wheel assembly is removable connectable to the frame of the track system. A track system and a light heavy-duty vehicle are also disclosed.

A wheel assembly for a track system of a light heavy-duty vehicle is disclosed. The track system has a frame and an elastomeric endless track. The wheel assembly includes a wheel, an axle and first and second bearings. The wheel defines a wheel cavity in which the axle is receivable. The first and second bearing assemblies are disposed in the wheel cavity. The first bearing assembly is at a first end portion of the axle, and the second bearing assembly is at the second end portion of the axle. The wheel assembly is removable connectable to the frame of the track system. A track system and a light heavy-duty vehicle are also disclosed.