Boston Gear's 800 Series contains a focused selection of compact, heavy duty helical gear drives that offer long-life performance and simplified maintenance. The 800
Series provides a functional
interchange for SEW Eurodrive
and other European manufacturers' helical gear drives, making it uniquely practical for replacement
applications.

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

•	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

This line of electrically-released, dynamic, spring-set brakes (ERD) offers a high-performance, cost-effective solution for power-off load holding applications. With the removal of electrical power, whether accidentally or intentionally, they may be applied in any dry environment where a severe and dependable braking action is required. Torque range from 4 to 220 lb.ft.

Completely sealed, designed for tough, high load applications.
B-Track linear actuators incorporate high strength, high quality components and are
designed to provide years of trouble-free performance in harsh environments. Models feature a ball nut screw drive with integral load holding brake and overload clutch. Efficient power use, compact package size, excellent corrosion protection, rugged spur gearing, synthetic lubricants and high performance motors provide maximum capability and value. Models available with 2 to 24 inch stroke lengths, up to 2200 lb. load capacity, and up to 2.7 in./sec travel speeds.

Spring-Set Motor Brakes ideal for failsafe protection on draglines, shovels, and blast hole drills.

•	High energy lining provides long life
•	High torque, low inertia design
•	Quick, simple installation
•	Low stress spined hub
•	Available with taper bore
•	Multiport air inlets available

Completely sealed, designed for tough, high load applications.
B-Track linear actuators incorporate high strength, high quality components and are
designed to provide years of trouble-free performance in harsh environments. Models feature a ball nut screw drive with integral load holding brake and overload clutch. Efficient power use, compact package size, excellent corrosion protection, rugged spur gearing, synthetic lubricants and high performance motors provide maximum capability and value. Models available with 2 to 24 inch stroke lengths, up to 2200 lb. load capacity, and up to 2.7 in./sec travel speeds.

The KK is designed for high-ebergy continuous slipping applications. It is suitable for end-shaft or through-shaft mounting.

•	Water-cooled brake with the cooling water contained within water jackets.
•	Copper plates quickly transfer the heat away from the friction surfaces to give good control and long life.
•	The friction surfaces are dry running.
•	Air applied brake with full circle friction discs.
Air and water connections are stationary

'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

For high cyclic and general clutching duties. Specially designed for end-shaft mounting onto a bearing supported flywheel or gear wheel.

•	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 connection via rotary union/seal/coupling mounted directly into front of clutch for fastest response time. For dry use only.

Air, hydraulic, or spring set actuated and water cooled design, featuring copper wear plates optimized for heavy-duty continuous slip tension applications.

AquaMaKKs™ consist of a series of alternating friction discs and water jackets. Torque is transmitted by applying axial force from the pneumatic, hydraulic, or spring set actuator. Copper wear plates are used for excellent heat dissipation.

AquaMaKKs provides accurate torque control for constant tensioning and are perfectly suited for applications in oil and gas, metal processing and forming, forestry, and marine deck machinery.

For high-energy continuous slipping applications such as dynamic tensioning duties where 'fail to safety' is required.
The KK/SS is suitable for end-shaft or through-shaft mounting.

•	Available in two actuation options:
	a)	KK/SS - Spring applied / air released 'passive brake' for emergency engagement in the event of air supply failure
	b)	KK/SS/Dual acting - A brake combining the advantages of excellent air applied 'active' control plus the added security of spring applied 'passive' holding and stopping action
•	Water-cooled brake with the cooling water contained within water jackets.
•	Copper plates quickly transfer the heat away from the friction surfaces to give good control and long life.
•	The friction surfaces are dry running.
Air and water connections are stationary

For high cyclic and general clutching duties where space or weight are at a premium. The LI/HT is designed for end-shaft mounting onto a bearing supported flywheel or gear wheel. 
These high torque clutches provide:

•	High torque to size ratio
•	Low rotating inertia
•	Extremely fast response
•	Air applied clutch with full circle friction discs
•	Available in 1,2,3 or 4 plate designs to suit torque, heat, response and space requirements.
Air connection via rotary union/seal/coupling mounted directly into front of clutch for fastest response time. For dry use only.

Complete line of spur, helical, miter, bevel, worms and worm gears.

•	Thousands of gears are available for immediate shipment
•	Custom gears can be designed and manufactured
•	All gears are manufactured to the strictest standards for the highest quality product available