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.
TF(Tough)Series Tapered Roller Bearings
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 Torque Tapered Roller Bearings
Low friction torque has been achieved by logical friction analysis and improved parts surface processing technology.
Long Life Cylindrical Roller Bearings for Pinion Shaft Pilot Support
For a pinion shaft pilot in a straddle mount type differential of heavy trucks. The full roller design allows for heavy radial loads.
Long Life Needle Roller Bearings for Universal Joints
Low friction torque and improvement of seizure resistance between the spider and bearings have been achieved by using specially designed bearing cups.
Long Life Center Support Bearings
Center support bearings for propeller shaft with high sealing performance against mud, turbid water, and particles.
Long Life Coupling Support Bearings for 4WD Vehicles
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.