Flexible Disc Couplings Brochure

FORM-FLEX METAL DISC FLEXIBLE COUPLINGSForm-Flex couplings transmit torque while compensating for angular, parallel and axial misalignment betweentwo connected shafts. Flexible disc couplings minimize the misalignment forces on the connected equipment.The Basic flex coupling consists of two hubs, a spacer and two flexible discs. The flex disc is an assembly ofthin metal laminations. In figure shown below, flex disc holes A & C are bolted to the hub and holes B & D arebolted to the spacer. Torque is transmitted in direct tensions from A to B and from C to D through the flex disc.Misalignment is taken through bending in the link between the bolt holes.COOLING TOWER DRIVESForm-Flex metal disc couplings are widely used in cooling fan drive applications. Form-Flex 4 bolt disc couplings offer more misalignment capacity than any competing metal disc design.For smaller towers up to about 100 inches DBSE, TB Wood’s offers steel and composite spacer tubing options. TrueTube composite torque tubes are lighter than steel and eliminate thermal growth and vibration problems.Form-Flex composite floating shaft couplings are recommended as a replacement for older multi-section drivelines. Composite couplings can span up to 240 inches without high maintenance center support bearings.VERTICAL PUMP DRIVESForm-Flex floating shaft couplings are a cost- effective, maintenance free alternative to cardan U-joints for vertical pump drivelines. Form-Flex couplings are available with either steel or composite spacer tubing. Composite spacer tubing can reduce total cost by eliminating the need for bearings and support structures.PHONE: 708/345-4300 FAX: 708/345-4315 Johnson Power Ltd. Page 1FORM-FLEX METAL DISC FLEXIBLE COUPLINGSCOMPLETE PRODUCT OFFERING-TORQUE CAPACITY TO 3175 HP/100 RPM-CLOSE COUPLE, SPACER AND FLOATING SHAFT DESIGNSHIGH STRENGTHSTEEL FASTENERS-NO MOVING PARTS-ZERO BACKLASHOVER 30 YEARSEXPERIENCE INMETAL DISCCOUPLINGSAPPLICATIONS-PUMPS -FANS AND BLOWERS-COMPRESSORS -FOOD PROCESSING-PRINTING -MACHINE TOOLSALL METAL CONSTRUCTION-WIDE TEMPERATURE RANGE-AVAILABLE IN CARBON OR STAINLESS STEEL-COMPOSITE MATERIALS NOW AVAILABLEHIGH STRENGTHSTAINLESS STEELFLEX DISCS-HIGH TORSIONAL STIFFNESS-NO LUBRICATION REQUIRED TYPICAL APPLICATIONSPHONE: 708/345-4300 FAX: 708/345-4315 Johnson Power Ltd. Page 2Form-Flex Flex Disc DesignsMATERIAL CLASS BY COMPONENTCOUPLING HUB SPACER ASSY REPAIR KITA A A A Mild steel hubs and spacer, alloy steel hardware, 300 series SS flex discB B B A Zinc plated steel hubs and spacer, alloy steel hardware, 300 series SS flex discC B C E Zinc plated steel hubs and spacer, 300 series SS flex disc and hardwareE E E E All 300 series stainless steel constructionDISC STYLE DESIGN FEATURES WHERE USEDIdeal for general industrial applications withmotor or turbine drivers and smooth tomoderate load conditions.Low to moderate speed ranges.Serve or stepper driven positioning systems.Applications where misalignment may be aproblem. 4 bold designs offer the highestmisalignment capacity of any metal discdesign.Not recommended for engine drivenapplications.Straight sided flex disc.1 degree angular misalignment.Torque range: 35 LB. IN. to 30,240 LB. IN.Zero backlash.All machined steel construction.Stainless steel flex discs.Steel or stainless steel materials.Minimum reaction forces.4 BOLT(A, M SERIES)6 BOLT(B SERIES)8 BOLT(D, F, H SERIES)Ideal for motor or turbine drivers with anyload conditions.Use for reversing, reciprocating or otherrough load conditions.May be used with industrial engines drivingsmooth loads.Moderate to high speed ranges andapplications where dynamic balancing isrequired.Consider 6 bolt where 4 bolt size requiresincreasing coupling size to meet bore sizerequirements.Straight sided disc.0.7 degree angular misalignment.Torque range: 3050 LB. IN. to 233,000 LB. IN.Suitable for precision balancing.Zero backlash.All machined steel construction.Stainless steel flex discs.Steel or stainless steel materials.High torque-low speed applications.Industrial engines driving reciprocatingequipment.Heavy-duty reversing applications.Custom designs for high torque applications.Round disc design.0.3 degree angular misalignment.Torque range: 9500 LB. IN. to 2,000,000 LB. IN.Zero backlash.Heavy duty cast construction.Alloy or stainless steel flex discs.Flywheel mount designs.MATERIAL CLASSESAPPLIES TO 4 AND 6 BOLT DESIGNSPRODUCT FEATURES AND OPTIONS*Alloy steel flex disc is standard for DA and DP series. Stainless steel is optional.DESCRIPTIONFEATURE AR, AK, AP BH, BP, BY BF BA, DA* A5, A7 B5 HFTH HH, HSH, FSHAX, AY DP*STANDARD BORE FIT CLEARANCE INTERFERENCE CLEARANCE INTERFERENCESET SCREWS STANDARD OPTIONAL STANDARD OPTIONALPULLER HOLES OPTIONAL STANDARD OPTIONAL STANDARD OPTIONALSTANDARD FLEX DISCS 300 SERIES STAINLESS STEEL* ALLOY STEELBALANCE CLASS AGMA 7 AGMA 8 AGMA 9 AGMA 7 N/A N/ADYNAMIC BALANCE OPTIONAL PER TBW COMMERCIAL STANDARD N/APHONE: 708/345-4300 FAX: 708/345-4315 Johnson Power Ltd. Page 3