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BK6 | Metal Bellows Coupling

Conical Sleeve And Tapered Press-Fit Connection

The BK6 is designed so that one side has a conical sleeve with six fastening screws
 (ISO 4762) and three draw-off threads, while the other side has a backlash-free tapered conical sleeve with a press
fit connection and 3 draw-off screws.
It has a wide operating temperature range (-30 to 100 degrees Celsius) and is thermally and electrically insulated. This is an easily mounted, backlash free solution. BK6 bellows couplings are maintenance-free and have an infinite life, if the tolerances are not exceeded. They are rated for speeds up to 10,000 RPM and higher speed versions (Finely Balanced) are available. Brief overloads of 1.5 times the indicated value are acceptable with these couplings.
Bellows are made of highly flexible, high-grade stain
less steel while the conical sleeves and tapered segment on bellows face are made of steel. The tapered segment consists of glass-fiber
rein forced plastic that is molded onto a steel hub face for a wear-free connection and a high degree of operating dependability. *Custom designs with varied tolerances, key-ways, non-standard
 material and bellows are available upon request.

METAL BELLOWS COUPLING WITH
CONICAL SLEEVE AND
TAPERED PRESS-FIT
CONNECTION
15 - 1,500 NM

BK6 Diagram

BK6 Series Variants

*See above picture for reference

ItemTorque(Nm)Length (mm)I.D. D1 (mm)I.D. D2O.D. (mm)MomentInertiaWeight (kg)TorsionStiffnessLateral(mm)Angular(deg)LateralSpringStiff(N/mm)Fastening screwTorque (Screw)Mount Length (mm)Mount Length (mm)PreLoadAxial Rec Force (N)Axial(mm)Clamp DiameterClamp Length
BK6-151558 | 6510-2210-22490,1 | 0,120,3 | 0,3210 | 80,15 | 0,21 | 1,5475 | 137M43,513,5290,2-1,020 | 120,5 | 146,59,5

BK6-303068 | 7612-2412-24550,2 | 0,250,5 | 0,5220 | 140,2 | 0,251 | 1,5900 | 270M56,521,5340,5-1,050 | 300,5 | 15110,5

BK6-606079 | 8912-3212-32660,4 | 0,450,82 | 0,8438 | 280,2 | 0,251 | 1,51200 | 420M5818390,5-1,570 | 450,5 | 16011,5

BK6-15015097 | 10915-4015-40812,0 | 2,51,6 | 1,788 | 550,2 | 0,251 | 1,51550 | 435M61223,549,50,5-1,582 | 521 | 27417,5

BK6-300300113 | 12724-5624-561105,4 | 6,14,1 | 4,2225 | 1750,25 | 0,31 | 1,53750 | 1050M83027590,5-1,5157 | 1061,5 | 210220

BK6-500500132 | 14530-6030-601248,4 | 9,16,0 | 6,3255 | 2450,3 | 0,351 | 1,52500 | 840M83232681,0-2,0140 | 962,5 | 3,511423

BK6-80080014040-6240-6213317,58,14000,351,52000M105542741,0-2,0400312627

BK6-1500150015850-7550-751574416,26600,351,53600M121105390,50,5-1,5650214632



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