10.07.2015 Views

friction clutches - Arten Freios e Embreagens Industriais

friction clutches - Arten Freios e Embreagens Industriais

friction clutches - Arten Freios e Embreagens Industriais

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Table of Contents◗TENSION CONTROL BRAKESWeb ProductsBTBA TENSION CONTROLBRAKESBTBA BrakesSizes 10 & 12Nexen’s BTBA delivers consistenttensioning in web controlapplications including corrugating,labeling, and printing. Thisinnovative tension control brakeoffers a finned rotor with anintegral fan for maximum heatdissipation. Low rotating inertiaensures proper tensioningregardless of roll size – even at core.Designed with ease of assemblyand maintenance in mind,these brakes feature long-life<strong>friction</strong> facings to limit replacementcosts. The quick changefeature on each facing shoereduces downtime and maintenanceexpense. Intended formounting on shaftless unwindstands and other shaft-endapplications, the BTBA comes fullyassembled and has a straightbore for fast and easy installation.HIGH THERMAL CAPACITYIN A SMALL PACKAGEThe BTBA features design improvementsthat ensure maximum heat capacity. Anintegral fan works with the finned rotor tocool the brake, while Nexen’s open-designguard allows heat to dissipate away fromthe brake quickly. Cross-drilled holes in therotor further increase air flow for optimalheat dissipation.EASY INSTALLATION -NO FLANGE REQUIREDWith simple electrical and pneumaticconnections, the BTBA retrofits shaftmountedbrakes with a straight bore forquick and easy installation.VERSATILE, PRECISETENSION CONTROLThe BTB utilizes multiple actuators toachieve differenttorque ranges across a wide range ofapplications.DESIGN SIMPLICITY FOREASY MAINTENANCEThe BTBA is the model of simplicity.Effortlessly replace facings by pulling thespring-loaded locking pin and lifting thefacing out.THERMAL CAPACITYCross-drilled rotor withheat dissipating fins.214Utilizing a cross-drilled, finnedrotor with an integral fan, theBTBA maximizes heat dissipation.Maximum ventilationholes in the guard allow heatto quickly dissipate away fromthe machine. This high thermallevel helps ensure longer lifeand lower maintenance costs.ADDITIONAL BTBA FEATURES(BTBA 12 Shown)HP t10.008.006.004.002.00• High torque capacity: (Standard & LoCo Facings)BTBA-10 (Standard): 349.4 Nm [3092 in-lb]BTBA-10 (LoCo): 174.7 Nm [1546 in-lb]BTBA-12 (Standard): 587.6 Nm [5200 in-lb]BTBA-12 (LoCo): 356.0 Nm [3150 in-lb]• Fan-cooled for maximum thermal capacity:BTBA-10: 5.6 kW [7.6 HPT]*BTBA-12: 7.5 kW [10.0 HPT]*• Low inertia:BTBA-10: 0.04 kgm2 [0.94 lb-ft2]BTBA-12: 0.08 kgm2 [1.90 lb-ft2]• Maximum speed:BTBA-10: 2000 rpmBTBA-12: 2500 rpm• Pneumatically actuated, bidirectional rotation• Compact outside diameter (OD)• Shaft-mounted design- no precision flange required• Diaphragm actuation - no seals to drag oro-rings to stick for improved low-endperformance• Torque control range of 50:1 usingmultiple actuators• Simple connections: 120 VAC (optional 24VDC) fan and 80 PSIG [5.5 bar] control air• Thermal energy is dissipated into theatmosphere, not the machine frame, so yourmachine runs cooler.BTBA Thermal Capacity*BTBA-12BTBA-1000 500 1000 1200 1500 200002500RPM*Braking in the counterclockwise direction reduces thermals by 10 – 15%7,465,974,472,981,49Kw

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!