High-speed Lightweight Bolsterless Bogie Delivery Records

Customer : Central Japan Railway Company
Type of train : Shinkansen Series 700
Maximum service speed : Tokaido 270km/h , Sanyo 285km/h
Train ratings (one hour) : 275kW
Rail gauge : 1435mm
Wheel base : 2500mm
Wheel diameter : 860mm (New)
Body suspension system : Bolsterless type
Axlebox suspension system : Coil spring/wing configuration

Shinkansen bolsterless bogie
Developed on the basis of the proven 300 series bogie design with refinements that reduce noise, vibration levels, and generated stress and simplify maintenance, based on the following design concepts:
- Tapered roller bearings for improved operating stability
- Semi-active suspension for improved riding comfort
- Reduced high-frequency vibrations

Customer : East Japan Railway Company
Type of train : Shinkansen Series E2
IMaximum service speed : Hokuriku 260km/h , Touhoku 275km/h
Train ratings (one hour) : 300kW
Rail gauge : 1435mm
Wheel base : 2500mm
Wheel diameter : 860mm(When new)
Body suspension system : Bolsterless type
Axlebox suspension system : Suspension plate system

The design concepts of this bogie became the basis for the bogies
used in E3 series trains, which are mainly operated in Akita Shinkansen.
-Non-suspended load is reduced using an aluminum alloy for gearbox and axlebox components to improve high-speed stability.
- Motor bogies feature two brake calipers per axle; trailer bogies feature four brake calipers per axle for improved braking performance.
- The booster cylinder anti-skid control has been changed from previous hydraulic anti-skid control to air pressure anti-skid control to reduce booster cylinder weight and dimensions.
- Semi-active suspension and fully active suspension for improved riding comfort

Customer : Kyushu Railway Company
Type of train : Series 885
Maximum service speed : 130km/h
Train ratings (one hour) : 190kW
Rail gauge : 1067mm
Wheel base : 2250mm
Wheel diameter : 810mm(New)
Body suspension system : Bolserless tilting type
Axlebox suspension system : Coil spring/wing configuration

Express EMU bolsterless tilting bogie
Features active tilting to improve riding comfort and reduce transit times by enabling higher speeds on curves.
Combines improved riding comfort with 25 km/h faster balancing speed on curves with a 400-meter radius.
The tilt mechanism is powered by air cylinders with roller bearings to support the tilt beams. Dust-proof devices protect the roller bearings for increased reliability.
The bogie side frame uses weld-pressed members. The bogie transoms are forged from seamless pipes for greater reliability and strength.

Customer : Kyushu Railway Company
Type of train : Series 817
Maximum service speed : 120km/h
Train ratings (one hour) : 150kW
Rail gauge : 1067mm
Wheel base : 2100mm
Wheel diameter : 860mm(New)
Body suspension system : Bolsterless type
Axlebox suspension system : Laminated & tapered rubber springs/wing configuration

Lightweight commuter EMU bolsterless bogie
The design minimizes the number of bogie components for easier maintenance.
Features one-way tread unit brakes.
The bogie side frame uses weld-pressed members. The bogie transoms are forged from seamless pipes for greater reliability and strength.