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The Foot Mounted Posistop Brake is similar in design to the Posidyne Clutch/Brake incorporating many of the same features including multiple friction surfaces, lubrication and cooling by recirculating fluid. Six sizes are available with torque ratings up to 1800 Lb.Ft. There are three control logics to select from:
S = Air Set Brake / Spring Release
A = Medium Spring Set Brake / Air Release
B = Heavy Spring Set Brake / Air Release

The spring set units are preset at the factory and are not adjustable. The air set units are adjustable over the full range.
Unit of Measure

Specifications

Static Brake Torque with Air Assist

 N/A 2076 lb·ft

Dynamic Brake Torque with Air Assist

 N/A 1245 lb·ft

Maximum Air Pressure Brake Torque

 N/A 80 psi

Maximum Speed

 N/A 2000 rpm

Thermal Rating

 N/A 120 HP Sec/Min2.0 hp

Air Volume per Engagement

 N/A 23 in³

Cyclic Inertia

 N/A 2.80 lb·ft²

Weight

 N/A 768 ft·lb

Foot Mounting Dimensions A

 N/A 17.50 in

Foot Mounting Dimensions D

 N/A 9.0 in

Foot Mounting Dimensions E

 N/A 5.75 in

Foot Mounting Dimensions 2Fs

 N/A 16.78 in

Foot Mounting Dimensions 2Ft

 N/A 21.50 in

Foot Mounting Dimensions G

 N/A 1.38 in

Foot Mounting Dimensions H

 N/A 0.88 in

Foot Mounting Dimensions O

 N/A 19.00 in

Foot Mounting Dimensions BSV

 N/A 7.38 in

Overall Length C1s

 N/A 26.75 in

Overall Length C1t

 N/A 31.50 in

Shaft Dimensions a/Fa

 N/A 5/8 x 5/16 in

Shaft Dimensions U/FU

 N/A 2-3/4 in

Shaft Dimensions V/FV

 N/A 4.75 in

Bottom Porting-AA

 N/A 3/8 in

Top Porting-AA

 N/A 1/2 in

Typical Applications

 N/A Machine Shaft Brake Motor Shaft Brake

Note

Note

 N/A Tandem or double stack units are available. Ratings are twice the values given for above single stack units.
Weights given are for a Single Stack Unit. See page 16.16 for Tandem Unit weights.
“s” denotes a Single Unit and “t” denotes a Tandem Unit.