Power transmission couplings are designed to transfer power from one shaft to another in rotating equipment. They can accommodate misalignment, reduce transmission of shock loads and provide a disconnection point for maintenance or alteration of the machinery.
Here are some of the primary purposes of power transmission couplings:
- Transmitting Power: Connect two shafts to transfer power from one to another efficiently.
- Accommodating Misalignment: Tolerate misalignments between shafts without causing stress or damage.
- Facilitate Maintenance: Serve as a disconnect point for easier disassembly and maintenance of machines.
- Safety and Overload Protection: Designed to act as a safety device, failing in a controlled manner under overload conditions to protect other machinery components.
- No Slip Power Transmission: Provide a direct link for accurate, slip-free power transfer.
- Reducing Wear and Tear: Significantly decrease wear and tear on bearings and other machinery components by compensating for misalignments with reduced loading.
- Reduced Maintenance and Downtime: In the case of non-lubricated couplings (disc, diaphragm, elastomeric or rigid), there is no need for regular maintenance checks and lubrication, as a result, increasing your plant's uptime and profitability.
- Conserving the Environment: Disc and diaphragm couplings are designed for infinite life, therefore minimizing your carbon footprint and costs.
When it comes to power transmission coupling types, the decision to use one over another depends on factors like the amount of torque to be transmitted, the equipment speed, the type of machines being connected, the equipment bearing arrangement, the space envelope available, the degree of misalignment present and the operational environment. Among the power transmission coupling types, whether rigid, elastomeric, disc or diaphragm, each has specific design features that make it suitable for a particular application and operating condition.
Power transmission couplings are ubiquitous across myriad industries, each with unique power transfer and motion control requirements, including oil and gas, mining, pulp and paper, power generation, marine propulsion, chemical, water and wastewater. Compliance with standards like API 610 and API 671 is crucial, enhancing reliability, safety, and performance and ensuring regulatory adherence. This is especially significant in industries like oil and gas, characterized by challenging operating conditions and where the ramifications of equipment failure are notably severe.
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Power Transmission Couplings Products
Showing 1–17 of 17 products
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....
T Series Close Coupled Axially Split Coupling (Imperial)
TSE coupling range is particularly suited for close-coupled applications traditionally fitted with gear type couplings. Torque is transmitted through...
T Series Close Coupled Axially Split Coupling for Medium to High Torque Applications (Metric)
TSR/TLR coupling range is particularly suited for close-coupled applications traditionally fitted with gear type couplings. Torque is transmitted through...
T Series Stainless Steel Discs in Pre-assembled Cartridge for Medium to High Torque Applications (Imperial)
John Crane’s Metastream® TDC/TSC/TLC Series are metallic membrane (disc) couplings that incorporate industry...
T Series Close Coupled Radially Split Coupling for Medium to High Torque Applications
John Crane’s Metastream® TSKL/TLKL Series of close-coupled membrane (disc) couplings are specifically designed...
T Series Stainless Steel Discs in Pre-assembled Cartridge for Medium to High Torque Applications (Metric)
John Crane’s Metastream TDK/TSK/TLK Series are metallic membrane (disc) couplings, incorporating industry...
Wrap-fit Urethane Element Coupling
John Crane’s Powerstream® A Series coupling provides a solution to one of the most persistent and troublesome problems facing maintenance personnel...
Rigid Coupling with Radially Located Parts for Vertical Applications
John Crane’s Metastream® C series range of rigid couplings incorporate a segmented, piloted locating design.
M Series Multiple Membrane Straight Diaphragm Coupling with Stainless Steel Discs in Pre-assembled Single Diaphragm Packs
With John Crane’s Metastream® MHS Series coupling range, the torque is transmitted through pre-assembled packs with a built-in safety bush...
M Series Multiple Membrane Straight Diaphragm Coupling with Stainless Steel Discs in Pre-assembled Double Diaphragm Pack
With John Crane’s Metastream® MOD Series coupling range, the torque is transmitted through a pre-assembled pack with a built-in anti-fly feature...
M Series Multiple Membrane Straight Diaphragm Stainless Steel Coupling with Composite Spacer for Cooling Tower Applications
John Crane’s Metastream® ZMH Series is specifically designed for the humid and corrosive atmosphere of a cooling tower, with its lightweight...
High-performance, Reduced-moment and Low-windage Design (API 671 and ISO 10441)
H-C couplings offer the lowest possible overhung moments and additional shrouding of the flexible elements and bolts. This arrangement...
Factory-assembled Transmission Unit with High-torque Capacity and Low Weight (API 671, ISO 10441)
H-F couplings can be readily adapted to match the integral shaft flanges used on many large gas and steam...
Factory-assembled Transmission Unit with High-torque Capacity for low speed applications where meeting API-671 (ISO 10441) specifications is required
H-L low speed couplings feature a factory assembled transmission unit that is simple to remove for easy equipment maintenance access.
High-performance coplanar couplings for turbomachinery with overload torque requirements.
John Crane’s Metastream® H-M coplanar couplings provide optimal power to weight in API 671 applications with overload torque requirements...
High-performance, Reduced-moment Design for Low Overhung Moment (API 671 and ISO 10441)
H-R series couplings are designed for medium- to high-speed turbomachinery applications where low overhung moment and light weight with...
Stainless Steel Shims for Alignment Adjustment
Standard pre-cut shims in various thicknesses. The shims are provided in sets pre-cut to size, and in standard thicknesses for...