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Construction/Transportation/Agricultural machinery

Large construction machinery and agricultural machinery not seen in the daily life are used for the construction and agricultural fields that support the infrastructure of the living.
JTEKT's technology that improving machine durability are applied in JTEKT drive shaft and bearings.

Crawler guide bearing for excavator

Outline

  • Bearings equipped with a nylon spacer are applied at the crawler section of the excavator, which supports the swing motion of the upper part, to realize a compactification and increased capacity.

Bearing unit for differential pinion gear of large dump trucks
Bearing unit for wheel planetary gear of large dump trucks

Outline

  • Bearings integrated with the spacer of the internal and external rings for increased ease of installation are applied at the differential and reduction gear of large dump trucks.

Bearing for supporting wheel loader center hinge

Outline

  • Large-capacity type bearings are adopted as the center-hinge support bearing.

Bearing for bulldozer crawler

Outline

  • In the crawler of the bulldozer, a long service life bearing subjected to special carburizing heat treatment is adopted.

Bearing for tractor wheel

Outline

  • A sealed bearing with enhanced dust protection characteristic is adopted for the wheel of the tractor.

Bearing for forklift mast roller

Outline

  • At the mast of the forklift that moved up and down with a load, a ball bearing having sufficient strength and impact resistance through special heat treatment is adopted.
  • Some products are treated against corrosion caused by salty wind and seawater, for use in port areas.

Drive shaft for construction machinery (High Wing Series Drive Shafts)

Outline

  • Because the maintenance-free characteristic is important for the drive shaft of construction machinery, measures are taken to suppress the wear of moving parts and entry of muddy water.

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Ultra large slewing rim bearing for tunnel excavator

Outline

  • Bearings with 10m or larger diameters are used at the rotating part of the gear of the tunnel excavator.
  • Because transportation in a finished product shape is difficult due to the size, the bearing is separated for transportation and reassembled at the jog site. The bearing is designed to have sufficient accuracy and high reliability even after disassembly and reassembly.

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