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Long life in contaminated oil including metal wear powder has been achieved by original materials and heat treatment. Size reductions from standard open type bearings are available.

Low friction torque has been achieved by logical friction analysis and improved parts surface processing technology.

For a pinion shaft pilot in a straddle mount type differential of heavy trucks. The full roller design allows for heavy radial loads.

Low friction torque and improvement of seizure resistance between the spider and bearings have been achieved by using specially designed bearing cups.

Center support bearings for propeller shaft with high sealing performance against mud, turbid water, and particles.

Thin walled and large diameter bearings for 4WD coupling. These bearings with large bore and minimized outer diameter have superior heat resistance, high load capacity, and sealing performance against mud and turbid water.

Differential Gear & Propeller Shaft


In FR vehicles, the engine power is transmitted to the rear differential gear via the propeller shaft. The fact that the center bearing used to support the propeller shaft is located on the vehicle's exterior gives rise to a demand for optimum mud and turbid water resistance in addition to maintaining fast rotational speeds. Due to the large speed-reduction gear ratio of the rear differential gear that conveys engine power to the rear wheels, a large gear-interlocking load affects the bearings that provide support for the pinion gear and the ring gear. In particular, bearings that support the pinion gear require low torque and high durability since these bearings rotate at the same speed as the propeller shaft.

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