Brake Discs and Pads
APPLICATIONS
Freight Cars | High-Speed Trains | Light Rail Vehicles |
Locomotives | Metros | Passenger Coaches |
Regional and Commuter Trains
BRAKE DISCS AND PADS
HIGH QUALITY RANGE OF BRAKE DISCS AND PADS
FOR ALL RAIL APPLICATIONS. Depending on the type of application,
Knorr-Bremse axle and wheel-mounted brake discs come with split or solid friction rings made of
gray cast iron, aluminum, or steel. Brake discs with friction rings made of particle-reinforced aluminum offer up to 50% weight reduction and less disc and pad wear compared to conventional
cast-iron discs.
GENERAL
Ceramic/CMC
n K norr-Bremse offers a wide range
of brake discs and brake pads for all
railway applications
Cast steel
Special Cast Steel
Aluminum
speed (km/h)
Gray cast iron
0
50
100
Mass and regional transit
150
200
Intercity transit
250
300
350
High-speed transit
Typical areas of application for brake disc materials for rail vehicles
400
450
n Selection of brake disc and pad friction
pairing has a significant impact on
brake safety and life-cycle costs
n Knorr-Bremse carries out detailed
project-specific thermal simulations
and dynamometer tests to ensure
proper selection of friction pairing
and the delivery of reliable and safe
braking
B R A K E D I S C S A N D PA D S
40
UIC standard
30
ORGANIC PADS
SINTER PADS
Disc material
Disc material
- Cast iron
- Steel
KB design
Optimized disc pad performance
with Knorr-Bremse brake pad
designs
- Steel
- Aluminum
20
UIC pad holder compatible
ADVANTAGES
DISC
n Proven brake performance in many
high-speed applications
n Standardized interface and fixing of
brake discs on wheel
n Resistant against thermal cracks due
to moveable friction discs
n Robust design with high resistance
to external shocks and vibration
nO
ptimized cooling channel with
excellent heat transfer and low
ventilation loss
n Low weight
n Split friction discs for ease
replacement
ISOBAR
Flexpad
UIC
standard
KRS
10
UIC
standard
Brake energy per disc [MJ]
RAIL
VEHICLE
SYSTEMS
ISOBAR pad holder
PADS
n K RS shape organic brake pads for
even wear of friction disc
n Flexpad Silent sinter brake pad for
braking without squealing
n ISOBAR flexible sinter brake pad with
top braking performance
n Temperature resistant with constant
friction behavior
n Long disc and pad life due to even
temperature distribution on brake
disc
TECHNICAL DATA BRAKE DISC
Axle-mounted disc
Wheel-mounted disc
Material
Cast steel
Gray cast iron
Special cast steel
Aluminum
Cast steel
Gray cast iron
Special Cast Steel
Aluminum
Size
Ø 460 – 700 mm
Ø 370 – 1.085 mm
Width
60 – 170 mm
120 – 145 mm
Project-specific disc size and design possible
P-1264-EN09.2014
Knorr-Bremse Systeme für
Schienenfahrzeuge GmbH
Moosacher Straße 80
80809 Munich
Germany
Tel: +49 89 3547-0
Fax: +49 89 3547-2767
WWW.KNORR-BREMSE.COM
This publication may be subject to alteration without prior notice. A printed copy of this document may not be the latest revision. Please contact your local Knorr-Bremse representative or check our website
www.knorr-bremse.com for the latest update. The figurative mark „K” and the trademarks KNORR and KNORR-BREMSE are registered in the name of Knorr-Bremse AG. Copyright 2013 © Knorr-Bremse AG. All
rights reserved. Including industrial property rights applications. Knorr-Bremse AG retains any power of disposal, such as for copying and transferring.