KBK Safety Couplings - KBK Antriebstechnik GmbH · KBK Safety Couplings Safety – or overload –...
3
KBK Safety Couplings Safety – or overload – couplings are in a time of growing automation a kind of product which gains more and more importance. In comparison to other safety mechanisms like an electronic cut-off or the classic frictional slip hubs, the safety couplings offer different advantages. They feature extremely short response times (3 – 5 milliseconds) which results in an almost on the spot torque break. So the safety of human and machines is assured in case of a machine crash. It is a reliable method to use safety couplings to prevent accidental personal injuries as well as long standstills and high maintenance costs. Furthermore, they are insensible against environmental circumstances like thermal fluctuation or contacts with lubricants which especially cause negative effects on slip hubs. The disengagement torque can be adjusted accurately by pre-stressed cup springs with a degressive characteristic. As soon as the torque achieves the preset maximum, the coupling disengages and the torque transmission breaks. This disengagement distance can be used to include additional mechanical or electrical equipment (sensor) which makes the drive cut off automatically. After the torque falls below the allowed maximum torque, the safety coupling re-engages automatically and continues transmitting the torque. Additional to the effect of overload protection, the KBK safety couplings offer, depending on which version was chosen, the added values of metal-bellows- or servo-insert- couplings. So they offer the advantages of compensating misalignments, extremely high torsional stiffness without restoring forces and backlash-free torque transmission. The version with the spider element has the ability to compensate crashes and vibrations and is electrical isolating. The incomplex design with few single parts and accordingly little mass and inertia gives the possibility of an uncomplicated integration of the safety coupling in almost every drive chain as well as a quick assembling/ disassembling without leaving any traces on the shafts. KBK safety couplings are available in the following versions: KBK/L (LL) Safety coupling For mounting tooth belt pulleys, Sprocket wheels, spur gears, … Torque range: 0,5-1600 Nm Version “LL” with two bearings.
Transcript of KBK Safety Couplings - KBK Antriebstechnik GmbH · KBK Safety Couplings Safety – or overload –...
KBK Safety Couplings
Safety – or overload – couplings are in a time of growing automation a kind of product which
gains more and more importance. In comparison to other safety mechanisms like an electronic
cut-off or the classic frictional slip hubs, the safety couplings offer different advantages.
They feature extremely short response times (3 – 5 milliseconds) which results in an almost
on the spot torque break. So the safety of human and machines is assured in case of a machine
crash.
It is a reliable method to use safety couplings to prevent accidental personal injuries as well as
long standstills and high maintenance costs.
Furthermore, they are insensible against environmental circumstances like thermal fluctuation
or contacts with lubricants which especially cause negative effects on slip hubs.
The disengagement torque can be adjusted accurately by pre-stressed cup springs with a
degressive characteristic. As soon as the torque achieves the preset maximum, the coupling
disengages and the torque transmission breaks. This disengagement distance can be used to
include additional mechanical or electrical equipment (sensor) which makes the drive cut off
automatically.
After the torque falls below the allowed maximum torque, the safety coupling re-engages
automatically and continues transmitting the torque.
Additional to the effect of overload protection, the KBK safety couplings offer, depending on
which version was chosen, the added values of metal-bellows- or servo-insert- couplings. So
they offer the advantages of compensating misalignments, extremely high torsional stiffness
without restoring forces and backlash-free torque transmission. The version with the spider
element has the ability to compensate crashes and vibrations and is electrical isolating.
The incomplex design with few single parts and accordingly little mass and inertia gives the
possibility of an uncomplicated integration of the safety coupling in almost every drive chain
as well as a quick assembling/ disassembling without leaving any traces on the shafts.
KBK safety couplings are available in the following versions:
KBK/L (LL)
Safety coupling
For mounting tooth belt pulleys,
Sprocket wheels, spur gears, …
Torque range: 0,5-1600 Nm
Version “LL” with two bearings.
KBK/BK
Safety coupling
With metal bellows to connect two shafts
for compensation of misalignment.
Torque range: 1 – 500 Nm
With collet clamps.
KBK/BI
Safety coupling
With metal bellows to connect two shafts
for compensation of misalignment.
Torque range: 3 – 1600 Nm
With conical hubs.
KBK/EK
Safety coupling
Pluggable solution with elastomere gear
ring to connect two shafts, damp vibrations
and compensate misalignment.
Torque range: 3 – 500 Nm
All bellows safety couplings available in different lengths!
Solutions for shaft diameters from 6 – 90 mm! Bores in inch available!
Customized solutions on request!
Keyways optional!
Different torque ranges per coupling available!
Advantages of the KBK safety couplings:
• Highest concentricity
• Each coupling is tested several times during the manufacturing process and in a final
inspection, so 100% quality is guaranteed
• Extremely space saving and concerning matters of minimum weight and inertia highly
optimised
• Highest resistance against environmental circumstances like temperature because of
special assembling methods
• Absolutely free of backlash because of the maximum torsional stiffness
• Non – wearing, maintenance free, fatigue endurable
• Different disengagement torques easily adjustable by customer with help of engraved
marks
Some typical applications for KBK safety couplings:
• Machine tools
• CNC machines
• Wood working machines
• Factory automation machinery
• Textile machines
• Sheet metal forming machines
• Printing machines
