Metal bellow couplings

Metal bellow couplings are ideal in applications where precise positioning and control of machine components are required. Their high torsional strength ensures accurate transmitted speed, angular positioning, and torque.

Six different metal bellow couplings on blue background

The metal bellow couplings are particularly suitable for direct connection between two coaxial shafts. The metal bellows compensate for lateral, axial, and angular shaft misalignment with low recovery forces. The backlash-free, inflexible metal bellows of high torsional strength guarantee precise positioning of the driven load and can be used in applications with high dynamic cyclic operations and at extremely high rotational speeds.

Metal bellow couplings from KBK

Metal bellow couplings

From KBK Antriebstechnik we offer metal bellow couplings that are absolutely backlash free and with high torsional strength. They are maintenance-free, and have high fatigue strength and low restoration forces due to incorrect adjustment. The modular system makes it possible to find a suitable coupling for any mounting situation.

KB1 metal bellow couplings from KBK Antriebstechnik transparant background

KB1 - Miniature, with set screws
	Backlash-free For shaft diameters from 1-24 mm Very cost-effective design Torque range: 0,05-10 Nm
KB2 - Miniature, with collet clamps
	Backlash-free For shaft diameters from 1 – 25 mm Easy assembly with friction-locked clamp hubs Torque range: 0.1-10 Nm
KB4 - with collet clamps
	Backlash-free Hub material: up to 60 Nm in aluminium, from 80 Nm in steel For shaft diameters from 10 – 80 mm Easy assembly Torque range: 18-1400 Nm
KB4H - with split hubs
	Backlash-free For shaft diameters from 10-80 mm Radial assembly Torque range: 18-1400 Nm
KB8 - with expanding clamps
	Backlash-free For shaft diameters from 10-60 mm For adopting hollow shafts, compact and space-saving design Torque range: 18-300 Nm

Metal bellow couplings from R+W

Metal bellow couplings

BK2 coupling on transparent background

BK1 - with flange mounting for special design application
	15-10,000 Nm Maintenance free Special design application Absolutely backlash-free due to bolted connection
BK2 - with clamping hub
	15-10,000 Nm Easy to mount Suited for space restricted installations Low moment of inertia Absolutely backlash-free due to frictional clamp connection.
BK3 - with tabered conical sleeves
	15-1500 Nm High clamping forces High degree of operating dependability New draw off device suited for space restricted installations Absolutely backlash-free due to frictional clamp connection.
BK5 - with tapered press-fit connection
	15-10,000 Nm Easy mounting and dismounting Wear-free and maintenance-free Electrically and thermally insulated Low moment of inertia Compensation for misalignment Absolutely backlash-free and torsionally rigid
BK7 - with expanding shaft
	15-300 Nm Compact design, conserves space while saving cost Easy mounting Low moment of inertia Compensation for misalignment Backlash-free and torsionally rigid
BKC - economy class, compact version, with clamping hub
	15-500 Nm For high speeds Easy to mount Suited for space restricted installations Low moment of inertia Absolutely backlash-free due to frictional clamped connection
BKL - economy class with clamping hub
	2-500 Nm Economically priced Low moment of inertia Easy to mount
MK1 - Miniature, with radial set screws
	0,5-10 Nm Compensates for 3-axis of misalignment A mounting groove or flattening of the shaft is not required due to the integrated dismounting groove Low-cost design Low moment of inertia Backlash-free and torsionally rigid
MK2 - Miniature, with clamping hub
	0,5-10 Nm Compensates for 3-axis of misalignment Frictional connection utilizing clamping hubs For high dynamic applications Low moment of inertia Backlash-free and torsionally rigid
MK4 - Miniature, with radial set screws and press-fit connection
	0,5-10 Nm Compensates for 3-axis of misalignment Easy mounting and dismounting Electrically insulated No wear Low moment of inertia Absolutely backlash-free and torsionally rigid
MK5 - Miniature, with clamping hub and press-fit connection
	0,5-10 Nm Compensates for 3-axis of misalignment Easy mounting and dismounting Electrically insulated No wear Low moment of inertia Absolutely backlash-free and torsionally rigid
MKH - Miniature, with fully split
	0,5-10 Nm For lateral mounting Easy mounting and dismounting Lightweight and low inertia Suited for pre-aligned shafts

Formulas for calculations