BACKLASH FREE, TORSIONALLY STIFF METAL BELLOWS COUPLINGS 2 - 10,000 Nm SERVICE LIFE TEMPERATURE RANGE R+W bellows couplings are fatigue resistant and wear free for an infinite service life, as long as the technical limits are not exceeded. GENERAL INFORMATION ABOUT R+W BELLOWS COUPLINGS: ROTATIONAL SPEED ATEX (Optional) Standard up to 10,000 rpm. Over 10,000 rpm in finely balanced version; up to grade ISO G=2.5 is available. For use in hazardous zones 1/21 and 2/22, the metal bellows has been authorized under directive 94/9/EG and is available with certification. ATEX CERTIFIED COUPLINGS Overall shaft / hub clearance of 0.01 - 0.05 mm SPECIAL SOLUTIONS Various materials, tolerances, dimensions and performance ratings available for custom applications on request.

TORSIONALLY STIFF BELLOWS COUPLINGS 2 - 10,000 Nm MODEL BK1 FEATURES with simple flange mounting from 15 - 10,000 Nm for adapting the metal bellows to custom drive components custom flange patterns available with clamping hub from 15 - 10,000 Nm easy to mount availalbe in multiple lengths low moment of inertia with split clamping hub from 15 - 4,000 Nm r adial mounting possible easy to install onto pre-aligned shafts low moment of inertia economy class with clamping hub from 2 - 500 Nm easy to mount optional self-opening clamp system low moment of inertia compact version with clamping hub from...

SIZING INSTALLATION igh torque density h ultra compact lowest moment of inertia of all clamping hub designs welded with clamping hub from 15 – 500 Nm with conical clamping hub from 15 - 10,000 Nm Page 40 ELASTOMER COUPLINGS EK | TX all stainless steel construction temperatures up to 300˚C easy to mount igh clamping pressure h modern design for removal system highly reliable with external clamping ring from 60 – 10,000 Nm ighly concentric symmetrical design h very true running to the shaft axis for high speed applications standard 1:10 taper with feather keyway special designs on request ATEX...

TORSIONALLY STIFF BELLOWS COUPLINGS SIZES FROM 2 - 10,000 NmMODEL FEATURES with clamping hub and blind mate connection from 15 - 1,500 Nm ► backlash free with two piece design ► easy installation and removal ► available as separate components BK6 with conical clamping ring and blind mate connection from 15 - 1,500 Nm ► eliminates need for screw access holes ► self centering hubs for highly concentric mounting ► easy installation and removal BK7 with expanding shaft from 15 - 300 Nm ► for hollow shaft mounting ► save space and cost ► solution for mismatched shaft/bore diameters BK8 with ISO flange...

WITH FLANGE MOUNTING15 - 10,000 Nm PROPERTIESFEATURES ► For simple flange mounting to special drive components ► custom flange patterns available MATERIAL ► Bellows: high grade stainless steel ► Hubs: steel DESIGN Two mounting flanges concentrically assembled to the flexible bellows. Brief overloads of up to 1.5x the rated torque are acceptable. For custom features place an XX at the end of the part number and describe the special requirements (e.g. BK1 / 150 / 62 / XX; XX=finely balanced for 25,000 rpm)

WITH CLAMPING HUB15 - 10,000 Nm PROPERTIES FEATURES ► easy to mount ► Optional: bolt tensioning system in size 800 and up ► light weight and low moment of inertia ► Bellows: high grade stainless steel Two clamping hubs concentrically mounted to flexible bellows. Brief overloads of up to 1.5x the rated torque are acceptable. A-2 bolt tensioning system Advantage: reduce screw tightening torques by up to 90% by using multiple smaller screws to create the same tension. DIN or ANSI keyway available MODEL BK2 SIZE * 180° opposed in each clamping hub.

WITH SPLIT CLAMPING HUB15 - 4,000 Nm PROPERTIES ► radial mounting possible ► easy installation onto pre-aligned shafts ► I ow moment of inertia MATERIAL ► Bellows: high grade stainless steel Two split clamping hubs with two screws in each. Brief overloads of up to 1.5x the rated torque are acceptable. DIN or ANSI keyway available

WITH CLAMPING HUB2 - 500 Nm PROPERTIES Two clamping hubs concentrically mounted to flexible bellows. Brief overloads of up to 1.5x the rated torque are acceptable. self-opening clamp system to open the bore during installation and removal by backing out the clamping screw. For custom features place an XX at the end of the part number and describe the special requirements (e.g. BKL / 80 / 26 / 22.23 / XX; XX=finely balanced for 25,000 rpm)

COMPACT DESIGN WITH CLAMPING HUB15 - 500 NmPROPERTIES FEATURES ► for space restricted installations ► light weight and low moment of inertia ► easy to mount MATERIAL ► Bellows: high grade stainless steel Two clamping hubs concentrically mounted to flexible bellows. Brief overloads of up to 1.5x the rated torque are acceptable. Optional: self-opening clamp system to open the bore during installation and removal by backing out the clamping screw. For custom features place an XX at the end of the part number and describe the special requirements (e.g. BKC / 60 / 26 / 22.23 / XX; XX=finely balanced...

TORSIONAL STIFF WITH CLAMPING HUB20 - 1,000 NM PROPERTIES FEATURES DESIGN ► extremely compact Two clamping hubs concentrically ► high torque density mounted to flexible bellows. ► high torsional stiffness Brief overloads of up to 1.5x the rated ► Bellows: high grade stainless steel

WELDED WITH CLAMPING HUB15 - 500 NmPROPERTIES FEATURES ► for high temperatures and aggressive media MATERIAL ► Bellows: high grade stainless steel ► Hubs: high grade stainless steel ► Screws: Grade 12.9 Geomet coated (alternate materials on request) DESIGN Two clamping hubs concentrically mounted to flexible bellows. Brief overloads of up to 1.5x the rated torque are acceptable. From -40° to +300°C operating temperature. Optional: self-opening clamp system to open the bore during installation and removal by backing out the clamping screw. * Smaller bore diameter available at reduced torque capacity...

WITH CONICAL CLAMPING SYSTEM15 - 10,000 NmPROPERTIES FEATURES ► high clamping pressure ► high torque version ► Bellows: high grade stainless steel ► Hubs: steel DESIGN Two conical clamping hubs concentrically mounted to flexible bellows. Brief overloads of up to 1.5x the rated torque are acceptable.