All operators and manufacturers of rail vehicles, like passengers, want any A rail vehicle (from trams to high-speed trains) that has exceptionally high reliability And operational safety. Take the light rail vehicle as an example, the low floor is more concerned, And multi-group design, their running gears, bogies, and other components must be designed to be very compact.

Gearbox bearings
The primary function of the rolling bearing in the gearbox is
Stabilize the shaft and support the transmission force. It means it
They must withstand extreme loads in complex environments
Lotus.
Types are mainly tapered roller bearings, four-point joints
Contact bearings and cylindrical roller bearings. Second use
Deep groove ball bearings, spherical roller bearings, and angular joints
Touch ball bearing. The bearing configuration varies; the main
According to the design and operating conditions of the gearbox
set.
The main requirements for bearings for gearboxes are:
●High speed
●High load
●Vibration and shock resistance
●High-temperature resistance
●High guidance accuracy
●Compact design
Select according to the relevant size of the gearbox manufacturer
Select the bearing while considering the above factors. -General
The calculated life expectancy is more significant than 1.5 million kilometers.
The characteristics of TFL gearbox bearings are:
●Enhanced internal design
●Special cage design
●Tolerance reduced and internal clearance adjusted
●A stop groove is designed on the outer ring to prevent it from turning
move

Traction motor bearings
Rolling bearings used for traction motors must be full
Challenges for reliable operation and long service life
Claim.
Cylindrical roller bearings and deep grooves are usually used here
Jack joint. Their calculated lifetime is due to the following
The design can usually be greater than 2 million kilometers.
●Special cage design
●Enhanced internal design
●Adjustable tolerance and internal clearance
●Effective ceramic insulation
Axle box bearing
In the freight electric locomotive, the axle box is used
Two rolling bearings to support the traction in the transverse configuration
Motor. The hug bearing directly suspends the traction motor
Hang on the wheelset shaft.
To achieve a long operating life of the hug bearing (through
Under normal circumstances, the operating life should exceed 2 million kilometers),
The rolling bearings used here should have
Very high carrying capacity.
High loads caused by vibration and shock are usually used
Special circle with reinforced stamped metal cage
The tapered roller bearing is loaded. Outer ring with flange or insulation
The special design of the layer can also be supplied on demand.