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BKL-Economy bellows coupling with clamping hub

Easy to mount
Light weight and low moment of inertia

DetailsParameter

Features
- Easy to mount
- Light weight and low moment of inertia
Temperature range
- -30 °C to +100 °C (-22 °F to +212 °F)
Design
- Two clamping hubs concentrically mounted to flexible bellows.
- Brief overloads of up to 1.5x the rated torque are acceptable.
Material
- Bellows: high grade stainless steel
- Hubs:
  - up to series 80 – aluminum, optionally steel
  - from series 150 – steel
Service life
- R+W bellows couplings are fatigue resistant and wear free for an infinite service life, as long as the technical limits are not exceeded
Fit clearance
- 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

ATEX (Optional)
- 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

	BKL 2	BKL 3	BKL 4.5	BKL 10	BKL 15	BKL 30	BKL 60	BKL 80	BKL 150	BKL 300	BKL 500
Model	BKL 2 30	BKL 3 32	BKL 4.5 40	BKL 10 44	BKL 15 58	BKL 30 68	BKL 60 79	BKL 80 92	BKL 150 92	BKL 300 109	BKL 500 114
Rated torque(Nm)	2	3	4.5	10	15	30	60	80	150	300	500
Coupling length(mm)	30	32	40	44	58	68	79	92	92	109	114
Bore diameter from ? to ? H7(mm)	4-12.7	3-12.7	6-16	6-24	8-28	10-32	14-35	16-42	19-42	24-60	35-62
Outside diameter(mm)	25	25	32	40	49	56	66	82	82	110	123
Torsional stiffness(103 Nm/rad）	1.5	0.994	7	9	23	31	72	80	141	157	290
Hub material	鋁 \|可選鋼	鋁 \|可選鋼	鋁 \|可選鋼	鋁 \|可選鋼	鋁 \|可選鋼	鋁 \|可選鋼	鋁 \|可選鋼	鋁 \|可選鋼	鋼 \|可選鋁	鋼 \|可選鋁	鋼 \|可選鋁

Previous：BKH-Bellows coupling with split clamping hub

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