L Series
Manufacturer: John Crane
General purpose All metal Membrane Coupling
L series range of membrane couplings has been specifically designed to provide a cost effective solution for demanding industrial applications. The couplings are selected by their torque capacity, with the scalloped hub providing the right size for the shaft.
• Fit and forget: The L Series coupling is designed for infinite life and with correct machinery alignment will out last the machines it connects.
• Overload protection: The coupling is fitted with overload collars to prevent membrane rupture in the event of severe torsional overload.
• Low imposed loads: The membranes have been designed to optimize their torque capability, whilst minimizing the reaction forces due to misalignment, thus maximizing the life of the machines connected.
• Zero maintenance: The all metal construction has no relative moving parts, and hence requires no lubrication or routine maintenance increasing reliability.
• No backlash: The coupling design, with fitted bolts, and torsionally stiff membranes ensures that there is zero backlash. This makes the coupling ideal for drives where constant speed is crucial.
• Spark resistant option. Hazardous areas require spark resistant couplings. This is achieved by replacing the overload collars with components manufactured from non ferrous metals
• Overload protection: The coupling is fitted with overload collars to prevent membrane rupture in the event of severe torsional overload.
• Low imposed loads: The membranes have been designed to optimize their torque capability, whilst minimizing the reaction forces due to misalignment, thus maximizing the life of the machines connected.
• Zero maintenance: The all metal construction has no relative moving parts, and hence requires no lubrication or routine maintenance increasing reliability.
• No backlash: The coupling design, with fitted bolts, and torsionally stiff membranes ensures that there is zero backlash. This makes the coupling ideal for drives where constant speed is crucial.
• Spark resistant option. Hazardous areas require spark resistant couplings. This is achieved by replacing the overload collars with components manufactured from non ferrous metals
MAXIMUM SHAFT13"/350mm
MAXIMUM TORQUE235,000 Nm (2,079,750 lbf/in)
SPEED LIMITS22,000 rpm
TEMPERATURE LIMITS5°F to 300°F/ 15°C to 150°C