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.

Fully-crowned gear teeth
provide operational benefits
including maximum
load-carrying capacity with minimum size, maximum
reliability and long life.

•	Both “O” ring and metal seal models are available
•	Strong, rigid floating sleeve
•	Precision-machined identical hubs
•	Positive dust-tight seals

Spring-applied, hydraulically released multi-disc brakes with
industry standard SAE A, B, C, and D input and output flanges enable these brakes to be ‘bolted on’ to a wide variety of applications. Fully enclosed brakes are suitable for harsh working environments and
are available in wet and dry versions with static torque ranging from 50 to 1600 Nm (500 to 14,000 in. lbs.). These brakes are frequently used as a parking brake on lift vehicles.

Spring-applied, electrically released multi-disc static holding brakes, which use the industry standard SAE mount and NEMA “C” face. Originally designed for battery driven electric vehicles but are used in a wide range of access platform lift applications, these brakes offer high torque in a compact design for electric applications.

Model J Series U-joints use only high-wing bearing cap design. Developed for operation misalignment at high angles up to 15°. Bearing and seal design resists lubrication loss and contamination. Ideal for use in severe atmospheric conditions.

•	Tapered-shoulder trunnions reduce bending stress
•	Double-lip seal protects against grease leakage
•	Glass filled Nylon compound thrust bearings minimize friction and reduce galling
•	Exclusive accurately-guided roller bearings prevents skewing

Up to 169 kNm; 38,000 lbf.*

Designed for medium to high torque applications which require rugged strength. Units can operate at high misalignment angles.

•	Flanged, leveler and mill types
•	Fully crowned hub gear teeth
•	One-piece, molded lip-type seals
•	High degree of strength
•	Advanced gear design increasing torque capacity for a given diameter

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

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.

Sure-Grip® “Quick Detachable” bushings are easy to install
and remove. They are split through flange and taper to provide a true clamp on the shaft that is the equivalent of a shrink fit.

•	6-hole drilling (most sizes) makes installation and removal quick and easy.
•	Keyseat 180° from split.
•	Precise taper (3/4 in. per ft. on diameter) provides proper wedging action.
•	Saw cut through flange and taper (and sometimes cut down into keyway also) to provide a true clamp fit.
•	Cap screws used to secure bushings to sheave and to remove bushing from sheave

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

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

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.