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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 optimal 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.
New Tapered Roller Bearing with plastic cage: dedicated to the automotive transmission market and enables a 20% friction reduction compared with conventional products using a steel cage.
Our long life bearing has been developed for contaminated oil environments (including metal wear powder) by using special materials and heat treatment.
Low friction torque has been achieved by friction analysis and improved surface processing technology.
It i used for a pinion shaft pilot in a straddle mount type differential in heavy trucks. The full roller design allows for heavy radial loads.
Low friction torque and improvement of seizure resistance between the spider and bearings has been achieved using specially designed bearing cups.
Centre support bearings for propeller shaft with high sealing performance against mud, turbid water and particles.