Metal Bellow Couplings
The Rotolinear systems offer their clients with a Metal bellow couplings along with a servo insert couplings of KBK, originating from Germany.

Some of the key characteristics of this KBK Metal bellow couplings are enumerated below:
- The brand is a veteran in the field with an experience of more than 20 years in offering Metal bellow couplings.
- The product is free of a backlash and has very high torsion stiffness.
- The bellow is entirely made out of stainless steel.
- The hubs of this product are made out of AlCuMgPb as well as steel for the big size products.
- The product has been equipped with a precise transmission of the rotational angle.
- The product is absolutely maintenance free and comes with a lower inertia.
- There is a feature of compensation of the radial, axial along with an angular misalignment.
- The bellow couplings are made available up to torque’s of 5000 Nm.
- The miniature metal bellow couplings are available with models up to 10 Nm.
- The various models which are available are: Collet clamping/ Conical hub/ Outer conical hub/ Flange mounting/ Set screws / Expanding clamps etc/
- There is a faster delivery of this product within the committed time frame.
- The set standard is up to 10,000 RPM & above 10,000 RPM is dynamically balanced.
- The temperature ranges from 300 C to 1200 CC.
- There is an optional stainless steel product and is soldered/ welded.
MINIATURE METAL BELLOW COUPLINGS (Range from 0.1 – 10 Nm Torque)
The available models are:
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KB1 with: set screws Torque 0.1 -10 Nm.
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KB2 with: Collet clamp Torque 0.1 -10 Nm.
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KB3 with: expanding collet Torque 0.1- 10 Nm
METAL BELLOWS COUPLINGS (Range from 12 – 5000 Nm Torque)
The available models are:
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KB4 with: collet clamp Torque 12 Nm – 500 Nm.
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The hubs which are > sixe 60 are made of steel
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KB5 with: Conical Hub Torque 12-5000Nm
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KB6 with outer Conical Hub Torque 12-5000Nm
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The hubs are made of steel.
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The product has a high concentricity
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It is equipped with high clamping forces.
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KB7 with Flange mounting Torque 12-5000Nm
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The hubs are made of steel.
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The product is of smaller dimensions
SERVO INSERT COUPLINGS
The general characteristics of the KBK Servo Insert Couplings are enumerated below:
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These couplings are pluggable.
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They have a compensating misalignment
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They are free from backlash issues
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There are damping vibrations
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The inserts in the product are made out of Polyurethane
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The hub is made out of an alloy of aluminium & of steel for the bigger sizes.
Types



KBE-2=1 Plug-in hub with set screw Torque( 0.5- 300Nm)
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The size of the hub can range up to size 38 and is made out of an alloy of aluminium.
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The sizes 42 & 48 are made out of steel.
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The shore hardness for smaller sizes : up to 92 sh A (Yellow)
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The shore hardness for sizes of & above 28: 98 sh A (Red)
KBE-2 Plug-in hub with Collet Clamp Torque( 10- 500Nm)
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This product has an easy assembling as well as dissembling.
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There is a single slot collet clamp and a double collet clamp
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The shore hardness for a size up to 7: 92 sh A (Yellow)
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The shore hardness for a size 14 & bigger: 98 sh A (Red)
KBE-3 Plug in outer Conical hub Torque(10-500Nm)
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This type of product has very high concentricity.
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The size of the hub can range up to size 38 and is made out of an alloy of aluminium
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The sizes 42 & 48 is made out of steel with a shore hardness of 98 Sh A( Red).
Email: rotolinear@rediffmail.com