C A R L I S L E I N D U S T R I A L B R A K E & F R I C T I O N

PARKING BRAKES
PARKING BRAKES

Carlisle operates a flexible, world class manufacturing plant in Hangzhou

China that produces off-highway brakes, heavy duty friction and brake
shoes. This 13,470 sqm facility has recently added state-of-the-art
turning and CNC machining technology as well as expanded brake
assembly and testing capabilities.

Complete Brake Systems

Carlisle offers proven brake system designs for a wide range of off-highway vehicles and equipment. Our integrated brake solutions
move from the foot pedal to the hydraulic actuator to the brake – including the friction material. We design and build dry disc caliper
brakes, drum brakes and mechanical brakes for both service and park applications. When you specify a Carlisle brake system you
can count on smooth, quiet and dependable stopping power. In addition, now many of our brakes are manufactured in our Hangzhou,
China plant... ensuring you get the most cost effective, highest quality brake system in the world.

Carlisle Benefits Partner to OEMs Around the World

• Complete brake systems – hydraulic controls, Since our introduction of a caliper disc park brake more than 50 years
service brakes, park brakes and friction ago, we’ve been a key partner to most of the off-highway industry’s major
• Proven OE supplier for over 50 years OEMs. Our organization is well positioned to provide global customer
• Manufacturing and engineering support in Asia, support, including manufacturing, logistics and service. Carlisle is an
US and Europe experienced supplier of complete brake solutions that OEMs around the
• All designs adhere to SAE brake and ISO world can count on for high performance braking.
requirements
• Clean sheet or modified standard designs
• Quick turn prototypes
• Many new control, engagement and operator
warning features for increased safety
• Extensive testing to ensure in-field performance
and reliability
• Maintenance of an inventory of service parts for
all brakes we manufacture

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 PARKING BRAKES

why replace old drum brake

technology with failsafe or manual
caliper park brakes?
Drum brakes have been used on heavy mining, construction and utility vehicles for many years but brake
development cannot stand still. Disc brakes offer several performance and cost advantages over the aging
drum and are far easier to maintain.
–­ Jim Marietta, Carlisle Industrial Brake & Friction, USA

DISC vs DRUM
Disc systems usually weigh less than drum brakes and are far easier to service when the time comes to replace
the friction material; they allow very easy visual inspection for lining wear and adjustment. Disc brakes can also
be adapted to different brake torque requirements simply by changing disc diameters, while retaining common
calipers. This feature allows common brakes across a broad vehicle product line.

As the vehicle industry increasingly uses spring-applied hydraulically-released SAHR (failsafe) brakes, the drum
brake has become more cumbersome. While the disc brake provides a compact package with an integral release
piston, drum brakes have gained heavy spring chambers with hydraulic diaphragms and large springs required
to generate the necessary high-lever pull forces. These addtions have made the drum brakes less desirable as a
spring-apply hydraulic release unit due to higher weight and greater cost.

Carlisle CARLISLE
DRUM BRAKE
SA7000 Series RT SERIES
Weight (relative to Light Very Light Heavy
amount of Brake Torque) 13.06kg 3.2kg 20kg
Installation Small space Small space Large space
Requirements 193.8 × 195.9 × 135.7mm 127 × 118.7 × 87.4mm O.D.: 262mm, Width:75mm
Mounting Cantilever Mounted Cantilever Mounted Complex
Extra Brackets/Linkages Few Few Many
Adjustment Easy Easy Difficult to adjust
Max Brake Torque High (Worn: 3,996 Nm)* High (4,539 Nm)* Low (1,500 Nm)
Lining Replacement Easy Easy Difficult
Lining Retraction Magnetic Retractors Spring Retractors Spring Retractors
Value for Money Very Good Excellent Good

* brake disc OD: 500mm

Export Market Drivers

for Parking Brakes
Construction and material handling equipment vehicles
in Australia, Canada, US and Europe are using disc park
brakes as the standard. In developing countries, the trend
is toward disc park brakes. Drum park brakes have become
obsolete due to their relative lack of performance and
safety in extreme conditions. In addition, life-time costs due
RT Park Brake SA7000
to drum park brake weight, difficulty of installation as well
(Manual) Spring Applied Hydraulic as frequency of maintenance and repair - make drum park
Released (SAHR) brakes prohibitive in today’s export markets.

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PARKING BRAKES

Applications
Construction: Wheel Loaders,
Backhoe Loaders, Pavers,
Graders, Excavators, Rollers

Articulated Dump Trucks

Agricultural Vehicles

Underground Mining RT Mechanically Activated,

Park Brake

Mobile Crane

Telehandlers

Industrial Equipment SA7000 Spring Applied,

Hydraulic Release Park Brake

RT Mechanically Activated,
Park Brake

SA7000 Spring Applied,

Hydraulic Release Park Brake

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 PARKING BRAKES

SA7000 Spring Applied,

Hydraulic Release Park Brake

RT Mechanically Activated,
Park Brake

SA7000 Spring Applied,

Hydraulic Release Park Brake

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PARKING BRAKES

Why Choose a Carlisle

SA Series spring applied
hydraulic released Park Brake?
FAILSAFE — brake engages automatically upon loss of hydraulic or pneumatic
pressure

Substantial brake clamp force ideal for parking and emergency braking needs –
able to hold vehicle on gradient
Easy adjustment centering mechanism during installation
Easy manual clearance adjustment mechanism after lining wear
Quick and simple lining replacement – reducing maintenance time and down time
Magnetic retractors ensure running clearance, eliminate drag – longer running life
Semi-metallic or sintered linings available
Ductile iron casting for high strength
Brake supplied with mounting hardware
Cantilever mount with special jam nuts
Mounting bolts are plated to resist corrosion, eliminating the need for costly
seals that can fail with time
Eliminates mechanical linkages, brackets and connections simplifying design
and reducing cost

SA Series Carlisle SA Series parking brakes are spring-applied, hydraulically

released (SAHR), sliding caliper brakes designed for static and
emergency braking applications.

SA7000 SA7000 SA7000

High Pressure Low Pressure Hydraulic Actuated Low Pressure Air Actuated

SA14000 SA2500
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 PARKING BRAKES

SA7000
High Pressure

Specifications
Caliper Material High-strength ductile iron 9.5mm-12.7mm /
Disc Thickness
Actuation Spring applied, hydraulically released 0.38in-0.5in

Mounting Cantilever mounting on sliding pin; 3/4-10 thread 254.0mm-508.0mm /

Disc Diametre
Release Pressure 89.6bar-206.8bar / 1,300psi-3,000psi 10.0in-20.0in

Lining Material Non-asbestos or sintered metallic Final Assy Weight 13.06kg / 28.8lbs
Lining Area per Brake 102.2cm² / 15.84in² Static (New)-K 23,575N / 5,300lbs
Lining Volume per Brake 64.95cm³ / 3.96in³ Static (Worn)-K 17,792N / 4,000lbs
Disc Friction Radius Disc Diameter 2-25.4mm / 2-1.0in
Formulas Torque(lb-in)=K×Disc Friction Radius(in) Torque(N-m)=K×Disc Friction Radius(m)

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PARKING BRAKES

SA7000
Low Pressure Hydraulic Actuated

SPECIFICATIONS
Caliper Material High-strength ductile iron 9.5mm-12.7mm /
Disc Thickness
Actuation Spring applied, hydraulically released 0.38in-0.5in

Mounting Cantilever mounting on sliding pin; 3/4-10 thread 254.0mm-508.0mm /

Disc Diametre
Release Pressure 11.7bar-18.6bar / 170psi-270psi 10.0in-20.0in

Lining Material Non-asbestos or sintered metallic Final Assy Weight 16.33kg / 36.0lbs
Lining Area per Brake 102.2cm² / 15.84in² Static (New)-K 28,246N / 6,350lbs
Lining Volume per Brake 64.95cm³ / 3.96in³ Static (Worn)-K 17,792N / 4,000lbs
Disc Friction Radius Disc Diameter 2-25.4mm / 2-1.0in
Formulas Torque(lb-in)=K×Disc Friction Radius(in) Torque(N-m)=K×Disc Friction Radius(m)

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 PARKING BRAKES

SA7000
Low Pressure Air Actuated

Specifications
Caliper Material High-strength ductile iron 9.5mm-12.7mm /
Disc Thickness
Actuation Spring applied, air released 0.38in-0.5in

Mounting Cantilever mounting on sliding pin; 3/4-10 thread 254.0mm-508.0mm /

Disc Diametre
Release Pressure 3.1bar - 4.8bar / 45psi-70psi 10.0in-20.0in

Lining Material Non-asbestos or sintered metallic Final Assy Weight 16.33kg / 36.0lbs
Lining Area per Brake 102.2cm² / 15.84in² Static (New)-K 23,575N / 5,300lbs
Lining Volume per Brake 64.95cm³ / 3.96in³ Static (Worn)-K 17,792N / 4,000lbs
Disc Friction Radius Disc Diameter 2-25.4mm / 2-1.0in
Formulas Torque(lb-in)=K×Disc Friction Radius(in) Torque(N-m)=K×Disc Friction Radius(m)

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PARKING BRAKES

SA14000

Specifications
Caliper Material High-strength ductile iron 12.7mm-25.4mm /
Disc Thickness
Actuation Spring applied, hydraulically released 0.5in-1.0in

Mounting Double shear on slide pins 363.0mm-635.0mm /

Disc Diametre
Release Pressure 89.6bar-206.8bar / 1,300psi-3,000psi 14.25in-25.0in

Lining Material Non-asbestos or semi-metallic Final Assy Weight 31.70kg / 70.0lbs

Lining Area per Brake 285.8cm² / 44.3in² Static (New)-K 71,168N / 16,000lbs
Lining Volume per Brake 363cm³ / 22.2in³ Static (Worn)-K 46,259N / 10,400lbs
Disc Friction Radius Disc Diameter 2-31mm / 2-1.22in
Formulas Torque(lb-in)=K×Disc Friction Radius(in) Torque(N-m)=K×Disc Friction Radius(m)

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 PARKING BRAKES

SA2500

Specifications
Caliper Material High-strength ductile iron 9.5-12.7 mm /
Disc Thickness
Actuation Spring applied, hydraulically released 0.38-0.5 in)

Mounting Cantilever mounting on sliding pin; 3/4-10 thread 254.0mm-635.0mm /

Disc Diametre
Release Pressure 38bar-100bar / 551psi-1450psi 10.0in-25.0in

Lining Material Non-asbestos / organic Final Assy Weight 9.75kg / 21.5lbs

Lining Area per Brake 99.3cm² / 15.4in² Static (New)-K 17,030N / 3,828lbs
Lining Volume per Brake 54.77cm³ / 3.34in³ Static (Worn)-K 13,113N / 2,948lbs
Disc Friction Radius Disc Diameter 2-25.4mm / 2-1.0in
Formulas Torque(lb-in)=K×Disc Friction Radius(in) Torque(N-m)=K×Disc Friction Radius(m)

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PARKING BRAKES

Why Choose a Carlisle

RT Series manual Park Brake?
VALUE FOR MONEY – this brake is a manual version of the SA Series (SAHR) park
brake – similar brake force at a much lower cost – ideal for replacing aging drum
brakes!!

Substantial brake clamp force ideal for parking and emergency braking needs –
able to hold vehicle on gradient
Easy adjustment centering mechanism during installation
Easy manual clearance adjustment mechanism after lining wear
Quick and simple lining replacement – reducing maintenance time and down time
Spring retractors ensure running clearance, eliminate drag – longer running life
Simple and very weather proof; outer and inner boots seal moisture out of brake;
special zinc plating on the cams – these features are key because the brake is
often mounted low to the ground
Many options in regards to linings – semi-metallic or sintered
Retraction spring built in to keep linings centered over disk; linings never touch
disk during service because of retractor
Actuation lever may be indexed at 60° intervals, lever rotation direction can be uni
or bi-directional
Ductile iron casting for high strength
Brake supplied with mounting hardware
Cantilever mounted
Mounting bolts are plated to resist corrosion, eliminating the need for costly seals
that can fail with time
Eliminates mechanical linkages, brackets and connections simplifying design and
reducing cost
Optional cable retention bracket available

RT Series
Carlisle RT Series parking brakes are mechanically actuated, sliding caliper brakes designed
for static and emergency braking applications.

RT RT RT
Mechanically Actuated Mechanically Actuated Mechanically Actuated

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 PARKING BRAKES

RT

Specifications
Caliper Material High-strength ductile iron 7.9mm-12.7 mm /
Disc Thickness
Actuation Ball and ramp 0.31in-0.500 in

Mounting cantilever mounting on sliding pin; 1/2-13 thread 203.2mm-508.0mm /

Disc Diametre
Release Pressure 1,890N / 425lbs - Input Force* 8.0in-20.0in

Lining Material Non-asbestos or sintered metallic Final Assy Weight 3.2kg / 7.0lbs
Lining Area per Brake 61.6cm² / 9.55in² Static (New)-K N/A
K(static)=0.0104(Metric),
Lining Volume per Brake 39.2cm³ / 2.39in³ Static (Worn)-K
10.4(Imperial)
Disc Friction Radius Disc Diameter 2-19.05mm / 2-0.75in
Formulas Torque(lb-in)=K×Disc Friction Radius(in) Torque(N-m)=K×Disc Friction Radius(m)

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PARKING BRAKES

FRICTION MATERIAL
SA & RT Series Park Brakes

NF-786 Physical Properties

General
NF-786 is molded material with medium friction.

Friction and Wear (SAE J661)

Normal m = 0.39
Hot m = 0.40
Wear Rate = 0.012 in.³ / hp.-hr.

Thermal Properties
Tensile² (x-direction): 2250 psi
Temp. Wt. Loss
Flexural³ (y-direction): 4130 psi
200°C 0.4%
Compressive4 (z-direction): 9520 psi
300°C 1.1%
Shear7 (z-direction): 5070 psi
400°C 3.2%
Hardness5 (Gogan): 11-17
TGA & TMA analyses are available upon request. Specific Gravity6: 2.1

Test Procedures
1. SAE J661
2. ASTM-D 638-91
3. ASTM-D 790-97
4. ASTM-D 695-91
5. SAE J379a
6. ASTM-D 792-91
7.ASTM-D 732-93

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 PARKING BRAKES

— Formulation, design and manufacturing of friction material for brake

products have been core competency at Carlisle Industrial Brake and Friction
since the 1950s.

NF-621 Physical Properties

General
NF-621 is molded material with very aggressively high friction. It is
intended for static friction applications only. WARNING: Dynamic stops
with NF-621 will severely wear the mating metal.

Friction and Wear (SAE J661)

Normal m = 0.65
Hot m = 0.60
Wear Rate = 0.028 in.3/hp.-hr.
Tensile² (x-direction) 4,600 psi
Flexural³ (y-direction) 0,000psi
Thermal Properties
Compressive4 (z-direction) 23,000 psi
Temp. Wt. Loss
Shear7 (z-direction) 9,400 psi
200°C 0.1%
Hardness5 (Gogan) 7-10
300°C 1.0%
Specific Gravity6 2.9
400°C 4.0%

Test Procedures
1. SAE J661
2. ASTM-D 638-91
3. ASTM-D 790-97
4. ASTM-D 695-91
5. SAE J379a
6. ASTM-D 792-91
7.ASTM-D 732-93

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 CARLISLE ECONOMICS
COMPETITOR 3*

COMPETITOR 2

COMPETITOR 1

CARLISLE
Linings attest contusion.
Many look-alike brake parts available on
today's market claim "equal quality at a
lesser price." Carlisle has proven these
claims to be false! Specific competitive
testing and life-cycle analysis confirm 1 Dynamic coefficient of friction measures the ability of the lining to grip
that Carlisle is the best value-real Carlisle the disc for optimum "stopping" performance. From many years of lining
economics. development experience, Carlisle has established a recommended coefficient
range for optimum performance results. Linings performing in values higher
Consider the following competitive test than recommended suggest too aggressive friction material, resulting
comparison; Through Carlisle Engineering's in excessive disc and lining wear. A too aggressive lining material could
dynamometer test capabilities, three also create wheel skid by causing the brakes to actually "lock up" during
well-known competitive disc brake linings application. Linings with less than the recommended values may not provide
on the market today were compared to the gripping characteristics to stop the vehicle on a consistent basis.
Carlisle's premium lining material. All linings
were evaluated in three critical areas of Of all linings tested. Carlisle demonstrated the greatest consistency for safe.
acceptability; Efficient stops in all operating conditions.

1. Stopping ability
2. Lining wear
3. Disc wear

Dynamometers were programmed to

simulate light, medium, heavy and severe
vehicle braking duty cycles, this was
accomplished by varying the number and
length of brake applications, resulting in
multiple ranges of disc temperature.

Conclusion: This test (and other similar 2 Lining wear of lining weight loss is the truest measurement of economic value.
comparative tests) proves there is a
difference in brake parts suppliers. None of In each operation duty cycles Carlisle linings showed significantly lower
the competitive linings tested met even the amounts of wear – which directly calculates to less downtime and reduced
minimum Carlisle criteria for performance brake system maintenance costs – real Carlisle economics!
and wear. Don't be fooled by price alone!
When all factors are considered, Genuine 3 Disc wear is a factor often overlooked in measuring disc brake maintenance
Carlisle part are the best economic value costs. In caliper brake systems, discs are not regarded as a high-wear item,
on the market today. yet if matched with overly aggressive linings, they can significantly contribute
Buy smart… to increased repair costs.
Buy economically…
Buy Carlisle! Note the high degree of disc wear for all competitive linings. Carlisle linings
contributed virtually no wear on discs. Longer disc life – lower maintenance
costs – real Carlisle economics!

* Lining failure prior to test completion

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 PRODUCT OVERVIEW
SA7000 Low Pressure

www.carlislebrake.com/cn
SA7000 High Hydraulic
SA14000 Pressure Actuated Air Actuated SA2500 RT

Caliper Material High-strength ductile iron High-strength ductile iron High-strength ductile iron High-strength ductile iron High-strength ductile iron High-strength ductile iron
Spring applied, Spring applied, Spring applied, Spring applied, Spring applied,
Actuation Ball and ramp
hydraulically released hydraulically released hydraulically released air released hydraulically released
Cantilever mounting on Cantilever mounting on Cantilever mounting on Cantilever mounting on cantilever mounting on sliding
Mounting Double shear on slide pins
sliding pin; 3/4-10 thread sliding pin; 3/4-10 thread sliding pin; 3/4-10 thread sliding pin; 3/4-10 thread pin; 1/2-13 thread
89.6bar-206.8bar / 89.6bar-206.8bar / 11.7bar-18.6bar / 3.1bar - 4.8bar / 38bar-100bar / 1,890 N / 425lbs
Release Pressure
1,300psi-3,000psi 1,300psi-3,000psi 170psi-270psi 45psi-70psi 551psi-1450psi - Input Force*
Non-asbestos or Non-asbestos or Non-asbestos or Non-asbestos or Non-asbestos / Non-asbestos or
Lining Material
semi-metallic sintered metallic sintered metallic sintered metallic organic sintered metallic
Lining Area
285.8cm2 / 44.3in2 102.2cm2 / 15.84in2 102.2cm2 / 15.84in2 102.2cm2 / 15.84in2 99.3cm2 / 15.4in2 61.6cm2 / 9.55in2
per Brake
Lining Volume
363cm3 / 22.2in3 64.95cm3 / 3.96in3 64.95cm3 / 3.96in3 64.95cm3 / 3.96in3 54.77cm3 / 3.34in3 39.2cm3 / 2.39in3
per Brake
12.7mm-25.4mm / 9.5mm-12.7mm / 9.5mm-12.7mm / 9.5mm-12.7mm / 9.5-12.7mm / 7.9mm-12.7 mm /
Disc Thickness
0.5in-1.0in 0.38in-0.5in 0.38in-0.5in 0.38in-0.5in 0.38-0.5 in 0.31in-0.500in
363.0mm-635.0mm / 254.0mm-508.0mm / 254.0mm-508.0mm / 254.0mm-508.0mm / 254.0mm-635.0mm / 203.2mm-508.0mm /
Disc Diametre
14.25in-25.0in 10.0in-20.0in 10.0in-20.0in 10.0in-20.0in 10.0in-25.0in 8.0in-20.0in
Final Assy Weight 31.70kg / 70.0lbs 13.06kg / 28.8lbs 16.33kg / 36.0lbs 16.33kg / 36.0lbs 9.75kg / 21.5lbs 3.2kg / 7.0lbs
Static (New)-K 71,168N / 16,000lbs 23,575N / 5,300lbs 23,575N / 5,300lbs 23,575N / 5,300lbs 17,030N / 3,828lbs N/A
K(static)=0.0104(Metric),
Static (Worn)-K 46,259N / 10,400lbs 17,792N / 4,000lbs 17,792N / 4,000lbs 17,792N / 4,000lbs 13,113N / 2,948lbs
10.4(Imperial)
Disc Friction Disc Diameter Disc Diameter
Disc Diameter 2-1.0in / 2-25.4mm
Radius 2-1.22in / 2-31mm 2-0.75in / 2-19.05mm

Torque(lb-in)=K×Lever Force(lbs)×
Torque(lb-in)=K×Disc Friction Radius(in) Disc Friction Radius(in)
Formulas
Torque(N-m)=K×Disc Friction Radius(m) Torque(N-m)=K×Lever Force(N)×
Disc Friction Radius(mm)

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* NOTE: 1,890 N (425 lb) maximum input force for RT is actually the APPLY force which generates brake torque, since this brake is not a SAHR (not same as release pressure or force brake)
 selected customers

SA7000 High Pressure | Xuzhou KAT | 220hp Tractors | China

RT5000 | Dana Spicer, Turner, Carrero axle RT5000 | MST (Sanko)

Europe M542 Backhoe loader (Carrero axle) | Europe

SA7000 High Pressure | Volvo RT5000 | L&T Case (India)

L90 Wheel Loaders | Europe Backhoe | India

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Carlisle has 50 yrs experience as a strategic partner to its valued customers around the world. We are THE
global leader in off-highway braking solutions.

China Canada
Customer: Shandong Linggong (SDLG) Customer: Hitachi
Application: 5T, 6T Wheel loaders Application: 40-60 ton trucks
Product: SA7000 High Pressure Product: SA7000 High Pressure

Customer: Xuzhou KAT Customer: Hitachi

Application: 220hp Tractors Application: 1100, 1700 (60T, 190T) Mining Truck
Product: SA7000 High Pressure Product: SA14000

India US
Customer: Telecom Hitachi Customer: Manitowoc (Grove), Link-Belt
Application: 315V Backhoe Application: RT Cranes
Product: SA7000 High Pressure Product: SA7000 Low Pressure

Customer: L&T Case Customer: CNH

Application: 770 Backhoe loader Application: Haybailers
Product: RT5000 Product: SA7000 High Pressure

Customer: Caterpillar Customer: CAT

Application: 424 Backhoe loader Application: Paving Unit
Product: RT5000 Product: SA7000 High Pressure

Customer: Terex Customer: Gehl

Application: TX760 Backhoe loader Application: Telehandlers
Product: RT5000 Product: SA7000 High Pressure

Customer: L&T Case Customer: Manitou

Application: Backhoe developed in Spicer transmission

Product: RT5000 Application: Telehandlers

Product: SA2500
Customer: Mahindra Defence
Application: Armoured Vehicle Customer: CNH
Product: RT7000 Application: Ford New Holland backhoes
Product: RT5000

Customer: Tigercat Industries

Europe Application: Feller Buncher
Customer: Volvo
Product: RT5000
Application: L90 Wheel Loaders
Product: SA7000 High Pressure Customer: Interocean Systems
Application: Marine winch for ships
Customer: Liebherr
Product: RT5000
Application: ADT
Product: SA14000 Customer: CAT Clayton (Europe & Morton)
Application: CAT 460 backhoe loader
Customer: Gehl, Manitowoc (Grove)
Product: RT5000
Application: Material Handler (Gehl)
Product: RT5000

Customer: Dana Spicer, Turner, Carrero

Application: Axle
Product: RT5000

Customer: MST (Sanko)

Application: M542 Backhoe loader (Carrero axle)
Product: RT5000

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C A R L I S L E I N D U S T R I A L B R A K E & F R I C T I O N

Visit our online information source at

www.carlislebrake.com

Carlisle Industrial Brake and Friction

19F Sun Young Center, 398 Jiang Su Road Shanghai, PRC, 200050
Tel: 021-6100 5222 Fax: 021-6100 5221 Email: offhighway@carlisle.cn
www.carlislebrake.com/cn