Spring Set Brakes for Heavy -Duty Applications
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Altra Industrial Clutch Clutch

Altra Spring Set Brakes provide proven performance in demanding industrial applications... worldwide. For over 80 years,Wichita Clutch and Industrial Clutch, the industry-leading brands of the Altra Heavy-Duty Clutch and Brake Group have been designing and manufacturing innovative clutch and brake solutions to meet the requirements for a broad variety of heavy-duty applications spanning many industries. Highly engineered Altra spring set brakes represent the latest in technology, featuring superior design and exceptional quality to ensure long-lasting performance in all types of industrial...

Testing and Research Wichita Clutch and Industrial Clutch are recognized leaders in clutch/brake development with several complete R&D lab facilities located around the world. Capabilities: • Proprietary disc brake application software which calculates disc temperature and pad life estimation • 3D CAD solid modeling • Finite element analysis • Disc spring analysis Genuine Replacement Parts If quality and safety are important to you, insist on genuine replacement parts for your Industrial Clutch and Wichita Clutch clutches and brakes. With genuine replacement parts, you get better...

LKB Series Features The Model LKB brake is spring-set air or hydraulic released and can be provided with a wide range of torque capacities and release pressures by incorporating springs of different rates and quantity. Brake designed with total attention given to maximizing ventilation for cool-running operation. Benefits include: longer lining life; stable friction coefficients; and lower maintenance costs. All materials selected and field proven to provide the best available resistance to wear and thermal distress. Precision machining of all components ensures positive interchangeability...

LKB Series Applications Low Inertia LKB Brakes Model LKB spring-set brakes incorporate all of the design features of the LK style clutch and have been in existence equally as long. They are the perfect companion to the LK clutch if the application requires a clutch and a brake since both units are extremely fast in response, have low air consumption, and contribute the lowest possible inertia to the system that must be started and stopped. The separate clutch-brake combination has been applied in the metal forming industry on presses, press-brakes, and shears, for over forty years and are...

LKB Series Dimensions SINGLE DISC DOUBLE DISC Dimensions: inches LKB Model Static Dynamic Torque 60 Torque 60 Weight Weight Weight WR2 PSI Release PSI Release Outer Inner Total Inner (lb.-in.) (lb.-in.) (lbs.) (lbs.) (lbs.) (lb.-ft2) Note: 1) Use certified drawing dimensions only for final layouts. 2) DXF and IGES files available upon request. 3) Dimensions subject to change without notice. 4) The torques shown are at 60 PSI release and may be varied by the use of different springs and spring combinations. For further technical data and recommendations please consult our Engineering...

• Failsafe protection — spring-set • Long wear life • Quick, smooth stopping Wichita spring-set, air release Motor Brakes are ideal for failsafe protection of process equipment. Available in foot mounted and C-face options, this improved design has thicker friction discs for longer wear life. The fast acting Spring-Set actuation assures quick, smooth stops. Extra Thick Friction Discs Provide Long Life Multiple Spud Airtube Available With Taper Bore Low Stress Spined Hub Fast Acting Air Tube Design Optional Foot Mount Quick, Simple Installation

Slip Torque Ib.in. .3 CF* *Do Not Exceed 90% Of Slip Torque Ratings — Model Minimum Air-Tube Pressure Maximum Horsepower Per 100 RPM Release Pressure - PSI Size PSI For Released Brake _60 PSI Duty_ _75 PSI Duty t Weight of internal clutch parts for use in calculating clutch engagement time.

MB Series C-Face Motor Brakes Features • No lubrication • Low inertia design • Rugged, dependable design C-face adaptors are available in standard NEMA T and U frame designs. Custom adaptors are available for your specific motor design. Dimensions G, H, I, J and number of holes need to be provided to Wichita Engineering before final design is completed. When using Wichita C-Face Motor Brakes in a high cycling application, brake thermal capacity and motor thermal capacity need to be carefully matched. The motor information chart lists the specific Wichita part numbers for the proper adapter...

MB Series Foot Mounted Motor Brakes Notes: 1. Quick Release Valves 2. Air Hose Kits

Foot Mounted Motor Brakes Dimensions: inches (Consult factory for drawing before final layout.) Motor Model Motor Model Wichita motor brakes typically produce more torque than is usually necessary. Contact Wichita Engineering for help in selecting the number of springs to produce the proper deceleration for your application. Note: For mounting, use socket head capscrews conforming to the ASTM-574-97a.

MB Series Component Parts 1. Socket Head Capscrews 2. Air Tube Holding Plate 3. I.D. Shims 12. Grooved Friction Disc (grooved on both sides) 5. Socket Head Capscrews 14. Grooved Friction Disc (grooved on one side) 6. Airtube Spring Plate 7. Springs 8. Spring Release Plate 9. O. D. Shims 10. Grooved Friction Disc (grooved on one side) 15. Hub 16. Ring 17. Backplate 18. Socket Head Capscrews

Model Part Number I Model Part Number I Model Part Number Air hose kits contain all necessary parts (fittings, Optional Quick Release Valves can replace elbows on most units, (see Page 14) Model Part Number I Model Part Number

MB Series Quick Release Valve Quality Material Body and Cap: Stem: Check Valve: "O" Ring: High strength aluminum alloy Molded nylon Nylon ball Neoprene The Wichita Springless Quick Release Valve discharges twice as fast as any other valve tested in our laboratory and is four to five times faster than some common makes of valves. This valve will close and seal with less than 20 lbs. pressure. Most others require 25 to 30 lbs. to definitely seal. In actual tests, the Wichita Valve made many hundreds of thousands of engagements and disengagements before the slightest leak occurred, or any...