Hydraulic Spring Applied Brakes
Ideal for emergency stopping and holding of industrial machinery and off-highway vehicles.
Common features include:
- Cast aluminum construction
- Hardcoated housings
- Non-asbestos friction material
- Replaceable friction pads
- Buna-N seals
- EPR seals for automotive brake fluid optional
- Float mount
- Belleville disc spring stack
Standard models for brake disc thicknesses of 5/32, 1/4, 3/8, 1/2, 5/8, 1 and 1-1/8 inches. Custom spacer sizes available including metric. Consult factory.
FS38
Tangential Force: 233 lbf (1036N); 680 PSI Release
FS47
Tangential Force: 465 lbf (2068 N); 750 PSI Release
FS200
Tangential Force: 929 lbf (4132 N); 750 PSI Release
FS200FUL
Tangential Force: 929 lbf (4131 N); Unlimited Disc Series, 750 PSI Release
FS210
Tangential Force: 929 lbf (4132 N); 200 PSI Release
FS210-EP
Tangential Force: 929 lbf (4132 N); 200 PSI Release, Extended Friction Pads
FS400
Tangential Force: 1859 lbf (8269 N); 1500 PSI Release
FS400FUL
Tangential Force: 1859 lbf (8269 N); Unlimited Disc Series, 1500 PSI Release
FS410
Tangential Force: 1859 lbf (8269 N); 288 PSI Release
FS410-EP
Tangential Force: 1859 lbf (8269 N); 288 PSI Release, Extended Friction Pads
FS500
Tangential Force: 3059 lbf (13,607 N); 1500 PSI Release
FS510
Tangential Force: 3059 lbf (13,607 N); 300 PSI Release
FS525
Tangential Force: 3059 lbf (13,607 N); 200 PSI Release
FS541
Tangential Force: 6419 lbf (28.565 N); 300 PSI Release
FS580
Tangential Force: 6419 lbf (28,565 N); 625 PSI Release
FS581
Tangential Force: 6419 lbf (28,565 N); 1500 PSI Release
FS585 QC Dual Bore
Tangential Force: 12,838 lbf (57,106 N); 1300 PSI Release, Quick Change Pads
How do they work?
Active minimum hydraulic pressure starting at 150 psi (depending on series type) releases the brake piston (pulls the brake piston away) from the brake disc rotor and stores that energy in a Belleville disc spring stack. Then, at loss of that hydraulic pressure the energy stored in the disc spring stack is emitted driving the brake piston and engaging the disc rotor for positive stopping.
Engineering note: Spring applied brakes are intended for use as an emergency stop or static holding device. It is not suggested to use in continuous slip applications as torque capacity is directly related to friction pad wear.