ROTEX 90-BK-90-ST, KTR, Size 90 Spider-jaw coupling
90, Keyway, bored to size, Standard Hub
PCJ28AAL, Protorque, Curved Jaw Coupling, Size 28 Aluminium Hub, Pilot Bore
Pilot Bore, Standard Hub
PCJ38A, Protorque, Curved Jaw Coupling, Size 38 Cast Iron Hub (GG25), Pilot Bore
Pilot Bore, Standard Hub
ROTEX 42-BK-25-CI, KTR, Size 42 Spider-jaw coupling
42, Keyway, bored to size, Standard Hub
S300-VKR-ELEMENT, Tschan, Size 300 VKR Element
300, Element, Red Polyurethane (93 shore)
S70-VKR-ELEMENT, Tschan, Size 70 VKR Element
70, Element, Red Polyurethane (93 shore)
S85-VKR-ELEMENT, Tschan, Size 85 VKR Element
85, Element, Red Polyurethane (93 shore)
ROTEX 24-BK-14-AL, KTR, Size 24 Spider-jaw coupling
24, Keyway, bored to size, Standard Hub
ROTEX 28-BK-35-ST, KTR, Size 28 Spider-jaw coupling
28, Keyway, bored to size, Standard Hub
ROTEX 38-BK-20-CI, KTR, Size 38 Spider-jaw coupling
38, Keyway, bored to size, Standard Hub
ROTEX 38PB-CI-LRG-EXT, KTR, Size 38 Spider-jaw coupling
38, Pilot Bore, Large Extended Hub
ROTEX 42-BK-35-CI, KTR, Size 42 Spider-jaw coupling
42, Keyway, bored to size, Standard Hub
ROTEX 55-64SHEL, KTR, Size 55 Spider-jaw coupling
55, Element, Green Element (64 Shore)
ROTEX 65-BK-45-CI, KTR, Size 65 Spider-jaw coupling
65, Keyway, bored to size, Standard Hub
PCJ19AAL, Protorque, Curved Jaw Coupling, Size 19 Aluminium Hub, Pilot Bore
Pilot Bore, Standard Hub
PCJ19BAL, Protorque, Curved Jaw Coupling, Size 19 Large Aluminium Hub, Pilot Bore
Pilot Bore, Large Hub
PCJ19ER, Protorque, Curved Jaw Coupling, Size 19 98Sh Element, Red
Element, Red Element (98 Shore)
PCJ24BAL, Protorque, Curved Jaw Coupling, Size 24 Large Aluminium Hub, Pilot Bore
Pilot Bore, Large Hub
PCJ24ER, Protorque, Curved Jaw Coupling, Size 24 98Sh Element, Red
Element, Red Element (98 Shore)
PCJ28BAL, Protorque, Curved Jaw Coupling, Size 28 Large Aluminium Hub, Pilot Bore
Pilot Bore, Large Hub
What are the features and benefits of spider couplings?
Torsionally flexible
Curved-jaw spider couplings have a high level of torsional elasticity, meaning that they are accommodating of both parallel and angular misalignments.
Dampening
These couplings are dampening of both vibration and shock loads, helping to protect surrounding equipment from harsh operating conditions.
Fail-safe
Curved-jaw Spider couplings are fail safe. This means that even if the spider element fails, the coupling will continue to function. This reduces the risk of damage to surrounding equipment, as well as unplanned downtime.
Maintenance-free
These couplings do not require any further maintenance after fitting as they are lubrication free. This eliminates the need for downtime, as well as costly maintenance practices.
Curved-Jaw Spider Couplings FAQs
What is a curved-jaw spider coupling?
A curved-jaw spider coupling is a flexible shaft coupling designed to connect two rotating shafts while reducing vibration, shock, and minor misalignment. The curved jaws and elastomer spider help transmit torque smoothly in industrial machinery.
What are curved-jaw couplings used for?
Curved-jaw couplings are commonly used in:
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Electric motors
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Pumps
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Gearboxes
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Compressors
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Conveyor systems
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General industrial power transmission equipment
They help protect machinery while maintaining efficient torque transfer.
How do I choose the right curved-jaw coupling?
When selecting a curved-jaw spider coupling consider:
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Shaft size
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Required torque
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Speed (RPM)
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Operating environment
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Misalignment tolerance
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Spider material
Choosing the correct specification ensures optimal performance and longer service life.