•	Automatic engagement and disengagement
•	Delayed engagement produces a “no load start”
•	No slippage at full running speed
•	Controlled soft-start acceleration
•	100% efficient at rated speed
•	Standard, spring control, and deep pocket models
•	Protection against shock loads during start-up

Low-speed holdback for conveyor head shaft mounting. Provides positive protection against reverse torque runaways of inclined conveyors and elevators.

•	Long service life
•	Taconite seals
•	Removable torque arm
•	Superior roller design
•	Bore ranges up to 600 mm
•	Torque ratings up to 1626 kNm

HSB (High Speed Backstop) clutches are used on cooling tower fan drives to prevent rotation in the opposite direction from the normal driving direction. When the fan drive is off, wind pressure from other fans or ambient breezes can apply suffi cient force to rotate fan blades in the opposite direction. The HSB clutch allows the fan to freely rotate in the desired driving direction while preventing any rotation in the opposite direction.

Up to 600 kNm;
5,300,000 in.lb.

These torsionally stiff, light weight couplings are capable of transmitting high torques at high speeds while accepting significant levels of angular, radial, and axial misalignment. They are easy to install, suitable for hostile environments, require no lubrication and feature a high torque to weight ratio. Specific designs are available which meet the customer’s exact requirements. Standard units are compliant with API 671 (American Petroleum Institute) and ATEX 94/9/EC.

•	No maintenance
•	Standard and reduced moment designs available
•	Capable of being torsionally tuned to suit specific machinery requirements

Spring-applied, hydraulically released caliper brake

•	35 kN Braking Force
•	On-site torque adjustment to precisely match application needs
•	“park-off” facility for fast pad changing without special tools
•	Spring-Applied – low pressure air release
•	Controlled reversal of belt
•	Automatic release of belt tension
•	Stops in either direction

Spring-applied, hydraulically released modular disc brake

•	119 kN Braking Force
•	On-site torque adjustment to precisely match application needs
•	“park-off” facility for fast pad changing without special tools
•	Spring-Applied – low pressure air release
•	Controlled reversal of belt
•	Automatic release of belt tension
•	Stops in either direction

Spring-applied, hydraulically released modular disc brake

•	300 kN Braking Force
•	On-site torque adjustment to precisely match application needs
•	“park-off” facility for fast pad changing without special tools
•	Spring-Applied – low pressure air release
•	Controlled reversal of belt
•	Automatic release of belt tension
•	Stops in either direction

Two opposing impellers act as a centrifugal clutch allowing fluid (oil) to transfer torque while lubricating moving parts.

•	Easy to install
•	Dampens shock loads and vibration variations
•	Low torque resistance at start-up
•	Load balancing of multi-motor drives
•	Reduced initial starting current
•	Eliminates special starting devices
•	Reverse current braking possible
•	Unlimited and extended start-up
•	1:1 Input to output torque ratio
•	No mechanical contact of power transmitting components
•	Power capacity up to 1000 KW
•	15 sizes available

Up to 169 kNm;
1,500,000 in.lb.

State-of-the-art design from Bibby Transmissions, the original grid coupling manufacturer. G-Flex/Bibby 2000 Series is an all-metal coupling that provides positive protection against the damaging effects of shock loads and vibration. Aluminum horizontal cover (T10), and
all-steel vertical cover (T20) designs are available. G-Flex tapered grid couplings are an excellent choice where torsional flexibility/vibration damping are primary concerns.

•	Easy to assemble / replace
•	Part-for-part interchangeable with industry standard tapered grid coupling designs
•	Coupling sizes 1020 through 1140 in-stock in a range of standard bore sizes
•	Shot-peened tapered grid flex element for long life

TB Wood’s offers a full line of sheaves and drives to meet your specific application requirements.

•	Conventional V-Belt drives
•	Narrow drives (Ultra-V)
•	Light-duty drives (FHP)
•	Synchronous Plus drives
•	QT Power Chain® synchronous belt drives

Up to 270 kNm;
2,400,000 in.lbs.

Form-Flex metal disc couplings consist of two hubs, a spacer and two high strength carbon or stainless steel flexible discs. Modified and special designs
are commonly supplied to meet specific application conditions. Available in carbon steel, stainless steel or with corrosion resistant coatings.

•	No maintenance
•	Zero backlash
•	Close couple, spacer and floating shaft designs available
•	Easy interchangeability

Up to 180 kNm;
1,600,000 in.lb.

GC Series couplings feature unitized, straight-sided flexible discs for ease of installation. Up-to-date design targeted specifically for heavy industrial applications. These couplings provide increased torque capacity per size by taking advantage of the latest materials and design technologies.

•	Unitized Flex Packs
•	Easier, faster installation
•	Interchangeable with industry standard designs
•	Fewer sizes to cover a full range of applications
•	Reduced spare parts inventory
•	Lower total cost of ownership
•	Special designs avaiable for higher-torque applications

'Fail to safety' design for high cyclic and general stopping and holding duties. The LI/SSB is designed for end-shaft or through-shaft mounting.

•	Start/Stop parts have a low inertia which:
	-	Reduces acceleration times and allows more cycles per minute
	-	Reduces heat generated
•	Air applied clutch with full circle friction discs
•	Extremely fast response
•	Available in 1,2,3 or 4 plate designs to suit torque, heat, response and space requirements.
Air connections are non-rotating. For dry use only

CECON units are available with a disconnect feature that provides physical separation of the input and output shafts. This allows maintenance to be performed on the non-energized driver while the disconnect CECON is locked out in the disconnect position.

•	Designed for high-speed, continuous operation
•	View port allows visual confirmation of disconnect/connect status
•	Full-speed testing of isolated equipment prior to reconnection
•	Operates in adverse atmospheres
•	Reduced downtime
•	Long Service Life
•	Minimum maintenance