friction clutches - Arten Freios e Embreagens Industriais

Table of Contents◗CALIPER BRAKES“Air Champ” ®BC MODEL SPRINGACTUATED CALIPER BRAKESBC Model Caliper Brakes provide:◗ Static Torque capacity up to5300 In. Lbs. with 24 inch disc◗ Spring Actuated◗ Caliper spacing is adjustable tofit .188 to 1.500 inch widerotating discs and lineartraveling devices◗ Optional discs available from 16to 24 inch diameter◗ Disc Speeds up to 2800 rpm◗ QD Bushing compatible, forshaft sizes up to 3.875 inches◗ Adjustable shoe provides greaterfacing life◗ Spring engaged with manualrelease◗ Facing adjustment allows fulltorque capacity throughoutfacing useThe Disc must be orderedseparately. QD Bushing iscustomer furnished.NOTE: Torque values for spring applied brakes willvary over the life of the brake as a function of springforce and the burnishing process of the lining. Overthe life of the linings, torque values may exceedpublished values by up to 40%.◗ BC MODEL, SPRING ACTUATED CALIPER BRAKEProduct MIN Disengage Shipping Wt.Model Number Air Pressure (Lbs)BC288S 835220 87 PSI 19BC425S 835230 83 PSI 34◗ DISC & QD BUSHING OPTIONSDiscs must be ordered separately. QD Bushings are customer furnished. Foradditional Disc details, see pages 174 and 175. Bushings fit into the bore of thebrake disc hub, changing the bore to the size needed.Caution: QD Bushings must be capable of carrying the torque produced by thecaliper brake and disc selected. Check with the QD Bushing manufacturer forbushing torque ratings.◗ TORQUE VS. AIR PRESSUREStatic Torque in Inch-PoundsStatic Torque in Inch-Pounds2484220819321656138011048285522765400480042003600300024001800120060024.00” Disc22.00” DiscBC288S0 10 20 30 40 50 60 70 80 9024.00” Disc22.00” Disc20.00” Disc20.00” Disc18.00” Disc16.00” DiscAir Pressure in PSI18.00” DiscBC425S16.00” Disc0 10 20 30 40 50 60 70 80 90Air Pressure in PSINOTE: Dynamic torque is approximately 85% of static torque.164