Forged
rail
wheelsets
with
integrated
braking
systems
are
used
in
freight
cars,
passenger
coaches,
locomotives,
and
maintenance
vehicles.
These
assemblies
consist
of
forged
steel
wheels,
forged
axle,
and
brake
systems
(typically
disc
brakes
or
tread
brakes),
all
designed
for
durable
performance,
precise
stopping,
and
safety
under
high
load
and
speed.
Technical
Specifications
Component
|
Specification
/
Notes
|
Wheel
Diameter
|
760
mm
–
1250
mm
(customizable)
|
Wheel
Material
|
Forged
carbon
or
alloy
steel
(e.g.
ER8,
CL60,
AAR
C)
|
Axle
Material
|
EA1N,
EA4T,
or
AAR
F
class
forged
steel
|
Assembly
Type
|
Press-fit
wheels
and
brake
discs
on
axle
|
Braking
System
|
Disc
brakes
or
tread
(shoe)
brakes
|
Brake
Disc
Material
|
Heat-resistant
cast
or
forged
alloy
steel
|
Number
of
Brake
Discs
|
1–2
per
wheelset
(mounted
on
axle
or
wheels)
|
Braking
Torque
|
Up
to
25–50
kNm
(application-specific)
|
Bearings
|
Cylindrical
or
tapered
roller
bearings
(e.g.,
SKF,
Timken)
|
Standards
|
EN
13260/13261/13262,
UIC
811-1,
TB/T,
AAR
|