© 2008 Eaton Corporation. All rights reserved.

Airflex Clutches and Brakes for Oil & Gas

October 2013

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Airflex Overview and History

• Leading Manufacturer of Industrial Clutches and Brakes

• Make-to-order business with unique solutions to meet exacting customer needs

• Highly engineered and customized - not a commodity

• Critical part of large, complex systems designed into harsh environments • Power transmission and load management

• Personal safety, safeguarding high cost equipment, critical to system performance

• Heavy involvement with customer system engineers to understand their applications

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Founder’s History

• Founder of the Airflex Division

• 1889; Born in Sioux Falls, SD

• At 17; Started Building Fawick Flyers

• 1914; Entered Farm Equipment Industry

• Concentration on Clutch Technology

• 1918; President of Twin-Disc

• 1928; Entered Rubber Business in Akron, OH

• 1938; Develop the “CB” Airflex Clutch for Navy Marine Reverse Gears

• After WWII; Concentrated on Industrial Clutches

• 1968; Eaton acquires Airflex business

• Over 200 patents applied to Tom Fawick

Tom Fawick

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Traditional Industries & Applications Served

Mineral Processing

• First clutch ever used on

these applications to engage the motor to the mill • Clutches as large as 76 inches in diameter

Mining

• Used on the largest

surface mining equipment in the world • Primary parking & emergency brakes for all functions

Oil & Gas

•Clutches and brakes

used on thousands of oil

rigs around the world

Marine

•Supplying Navy vessels

since 1938

• Used to drive the main propulsion systems

Additional Industries: Metalworking, Can Making, Paper Mills, Tire Building, Textiles, Cement Manufacturing

Eaton Airflex products are critical to powering the global energy industry. Our product breath and depth far surpasses all competitors and our quality superiority differentiates us in our markets.

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Airflex Product Portfolio

Airflex specializes in large brakes. Our

products are capable of producing over

10,000,000 in-lbs (1,100,000 N-m) of torque

(typical cars produce about 3,000 in-lbs)

Spider for a 76VC drum clutch. Airflex manufacturers

clutches up to 76 inches in diameter. We make the

largest drum clutch in the world.

Water Cooled Air Cooled Clutch/Brake Calipers Constricting Drum Expanding Drum

Disc Products Drum Products

A Global Clutch / Brake Leader with Broad Range of Products

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Disc Product Portfolio

Clutch - Brakes

Air Cooled Clutches &

Brakes Calipers

Water Cooled

Brakes

Disc Advantages

• Typically longest life products

• More diverse than drum – many styles and solutions

• Air cooled and water cooled available

• Can be spring or air applied

• Most have full annular or ring shaped housings and full annular friction pads

• Allows for longer life

• Greater torque per envelope size

• Lower inertia than a typical caliper brake

Actuation Cooling Airflex Model

Pneumatic (Air) Air DC

Pneumatic (Air) Water WCSB, WCB

Spring Air DBA, DBB, DBBS

Spring Water WCSB, WCS

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Water Cooled Product Line WCB2/D, WCS, WCSB

• Water cooled brake or clutch for dynamic applications

• Provides highly effective heat dissipation through constant water circulation

• Spring or air applied

• Oil & Gas

• Drawworks Brakes

• Mooring Systems

• Paper processing

• Metal processing

• Marine

• Available with 6 disc diameters (8” - 48”)

• Up to 4 disc’s per brake

• Torque ranges from 5,700 – 2,744,000 lb-in

• Torque @ catalog rating

• Operating pressure range of 0 - 150 psi

• Thermal Power Capacity 30 – 5,200 HP

• Maximum Speed 360 - 2,150 rpm

Product Description & Overview Target Markets

Features & Specs

• Piston and cylinder actuation for constant and repeatable torque

• Clamp tube stud design

• Higher HP per plate

• No stick slip

Product Differentiators

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Air Cooled Product Line DC, DBB, DBA, DBBS

• Proven air cooled clutch / brake product line for high torque requirements

• Spring or air applied

• Oil and gas

• Drawworks Brakes

• Mooring Systems

• Paper processing

• Metal processing

• Surface Mining

• Available with 6 disc diameters (9” - 50”)

• Up to 4 disc’s per brake

• Torque ranges from 10,500 – 2,240,000 lb-in.

• Operating pressure 0 – 150 psi

• Maximum Disc Speed 600 – 3,000 rpm

• Maximum Element Speed 450 – 1,600 rpm

Product Description & Overview Target Market

Features & Specs

• Large friction volume / area per available size

• Very low inertia with DBB product line

• Clamp tube stud design

• Piston and cylinder actuation for constant and repeatable torque

Product Differentiators

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Drum Product Portfolio

VC CM

CB

EB E

Drum Advantages

• Long life

• Air actuation tube

• Friction

• Rugged and reliable

• Absorbs vibration

• Smooth engagement

• Allows some slipping

• Accommodates more misalignment than disc brakes with gear couple

• Short rebuild time compared to disc

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CB Product Line

Side

Connection

Rubber Tube

Bonded to

Metal Rim

Lockwire

Friction Shoe

Assembly Steel Rim

Pin

Torque is transmitted through the

steel rim, tube and friction

material onto a mating cast iron

drum located in the element

inside diameter.

Air Applied

Sizes: 3” to 45” Diameter

Torque up to 520,000 lb-in (58 KN-m)

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Side

Connection

Rubber Tube

Release Spring

Ventilated

Friction Shoe

Assembly Steel Rim

Torque Bar

Side Plate

VC Product Line

Air Applied

Sizes:11.5” to 76” Diameter

Torque up to 9.3 Million lb-in (1,000 KN-m)

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Enhanced Water Cooled Brake 36WC

Overview

• Redesigned brake for higher HP rating

• Thicker copper and increased water flow for higher energy dissipation

• Elimination of copper and friction material machining on service units

Benefits

• 20% increase in HP rating

• Ease of maintenance

• Improved reliability and durability

• Less downtime

Target Market – Oil and Gas

• Oil and gas

• Drawworks Brakes

• Mooring Systems

• Paper processing

• Metal processing

Available Now

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Oil and Gas Drawworks

Typical Drum Applications

32VC

Oilfield Top Drives

Grinding Mill

Dual VC Clutch

Application

VC Motor Brake

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Engine VC

Clutches

Gearbox

Typical Drum Applications

Airflex Dual

51VC1600

Marine Propulsion Drive

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Typical Disc Applications

Marine Winch System

Paper Mill Tensioning

DBB Motor

Brake

WCB Tension

Brake

WCB Tension

Brake

DBA Brake

Mining Hoist Brake

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Typical Disc Applications

Stamping Press

224WCB

Tension Brake

Oil and Gas Drawworks

424WCB

Combination

Clutch/Brake

Land Rig

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Reintroduced Hydraulic Calipers Application Case History

Oil and Gas – Top Drive

• Problem Statement: Increasing low

priced competition in the low end caliper

market has prevented Eaton to regain

business

• Product: 200DPA Hydraulically Applied

Caliper

• Result: Eaton has leveraged

manufacturing synergies to win against

the competition

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