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The 2" coupling size probably covers the most diverse selection of applications in the Todo-Matic family. Available in a range of material and connection configurations, Todo-Matic 2" is designed for rapid and safe transfers. Offshore chemical dosing, pharmaceutical feedstock and aggressive chemical vapor transfer are just some of the challenging applications Todo-Matic couplings see on a daily basis.
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| Thin pressed steel membranes act as the pivotal members in these couplings. Torque is resolved to simple tensile stresses in opposing segments of the membranes. These couplings have near-infinite life and a dynamically balanced construction which makes them suitable for applications requiring high rotational speed and high-level motion integrity e.g. machine tools, robots, centrifuges, turbines, dynamometers. |
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No need for lubrication and maintenance.
There is no need to disassemble the coupling to inspect.
Additionally, the condition of the discs can be checked
while the machine is running, using a strobe light.
The machine misalignment can be assessed.
Torsionally rigid without any backlash.
No wearing parts, high resistance to harsh environmental
conditions.
Infinite life if properly aligned. |
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Features :
Standard disc couplings - no lubrication
Theory of Operation: Transmits torque through thin scalloped flexible disc pack
Available from shelf for immediate shipment
Designed to meet API 610
Close coupled and spacer style
Custom-design available, contact Kop-Flex®
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Lovejoy brings to the market the best disc coupling yet to be offered. The Lovejoy/Jaure disc coupling utilizes the latest design efforts through Finite Element Analysis, extensive testing of materials and couplings, and several years of operational experience in actual applications. The Lovejoy/Jaure disc coupling is manufactured in the ISO 9001 certified manufacturing facilities of both companies.
Types of couplings include the three-piece industrial spacer unit used for general industrial applications and on OEM equipment. The five-piece dropout coupling is specially suited for refinery and API type applications. The close-coupled units fit in place of standard gear couplings.
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Rexnord® Thomas® Disc Couplings
No lubrication required
Visual inspection
No backlash
Low restoring forces
Wide temperature range
High reliability
Broad range of styles and sizes
Custom design capability |
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| The JAUFLEX® coupling uses an elastomeric element, and provides the required torsional flexibilityfor a smooth torque transmission. |
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Rating:
- Torque [Nm]: 0.6 - 40000
- Speed [1/min]: 1500 - 19000
Geometry / dimensions:
- External diameter up to [mm]: 400
- Bores up to [mm]: 400
Transmission element:
- Type: Pressurised spacers
- Material: Elastomer: VKR, VK60D, VKB, Pb70, Pb82
Note:
- Clutch hub and guide ring made of forged steel, machined on all sides.
- Elastomers with various settings, for use from -50°C to +120°C ambient temperature. |
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Falk™ Wrapflex® Elastomer Couplings
No lubrication required
12 sizes, 3 types
Polyurethane element has excellent wear and chemical resistance
Bores to 186 mm (7.25 inch)
Capacities to 15 028 Nm (133,000 lb-in)
Simple to install and non-lubricated
Standard nylon cover (sizes 2R-50R) with positive location and retention
Optional epoxy coated cover for Sizes 2R-50R (standard on sizes 60R-80R) |
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Gum Type Flexible Coupling: XGT
Merits:
- Vibration Absorption
- High Torque, High Response
- Zero Backlash
- Single piece structure with anti-vibration rubber molded between the two hubs
- Available in high torque variety XGT
- Identical clockwise and counter-clockwise rotational characteristics
- Exhibits excellent electrical insulation
- Operational temperature: -20°C~80°C
- Split Coupling
- Easy attachment and removal
- In Pursuit of Optimal Design: Using the latest FEM analysis techniques, the construction of the anti-vibration rubber is designed to yield high torsional stiffness and torque. Additionally, the shape is designed to relieve stress from the jaws' inner diameter. By distributing stress uniformly throughout the jaw, product longevity is significantly increased (patent pending). |
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Material:
-Hub: Cast iron
-Insert: Yellow polyurethane, 95 shore hardness
-Holding Ring: Polyamide (sizes A00 to A4) or Steel (All other sizes)
Note: Other materials are available on request, please ask sales for details. |
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The product range covers flexible and highly flexible couplings, gear couplings, all-steel couplings, fluid couplings, clutches and torque limiters:
N-EUPEX (pin coupling) up to 62,000 Nm
BIPEX (claw coupling) up to 3,700 Nm
RUPEX (pin and bush coupling) up to 1,300,000 Nm
ELPEX (ring coupling) up to 90,000 Nm
ELPEX-S (rubber disk coupling) up to 40,000 Nm
ZAPEX (gear coupling) up to 7,200,000 Nm
ARPEX (all-steel coupling) up to 1,500,000 nm
FLUDEX (fluid coupling) up to 1,500 Nm
PLANOX (clutch) up to 30,000 Nm
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Kop-Flex Elastomer Couplings
No lubrication and virtually no maintenance
Largest variety of Elastomer couplings in the market
Covers the widest range of applications - Pumps, mills, and resilient for torque dampening
Close coupled and spacer style
Available rubber, urethane, and special high temperature SBR
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Lovejoy's S-Flex coupling design is simple, ensuring ease of assembly and reliable performance. No special tools are needed for installation or removal. S–Flex couplings can be used in a wide variety of applications.
Its design is comprised of three parts. Two flanges with internal teeth engage an elastomeric flexible sleeve with external teeth. Each flange is attached to the respective shaft of the driver and driven and torque is transmitted across the flanges through the sleeve. Misalignment and torsional shock loads are absorbed by shear deflection in the sleeve.
In all designs, pre-molded teeth along the diameter of the sleeve engage with teeth of the coupling flanges. No clamps or screws are needed to connect the flanges with the flexible sleeve which securely lock together under torque for smooth transmission of power. All three sleeve materials are highly elastic which permits the S–Flex coupling to protect connected equipment from harmful shock loading, vibration, and shaft misalignment.
The S–Flex coupling from Lovejoy offers combinations of flanges and
sleeves which can be assembled to suit your specific application. Thirteen
sizes are available with torque capabilities that range from 60 in-lb to
72,480 in-lb.
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The UNE-FLEX coupling eliminates all alignment defects. Its ability to achieve multiple displacements surpasses more complex coupling mechanisms, and, nonetheless it operates with the simplicity and safety of a modern rubber tyre.
This new coupling has been made possible by the technological advances that have contributed to the wonders of present day rubber tyres, designed to carry huge loads at high speeds and to withstand tremendous impacts.
The fundamental element of the UNE-FLEX coupling is a rubber tyre reinforced with a synthetic mesh. It alone adapts itself to the working conditions, absorbing all axial, lateral angular and torsional misalignments and preventing the transmission of vibrations to the machines to which they are coupled. It compensates the defect of angular misalignments to 3º, lateral misalignment 4 mm, and axial misalignment 6mm.
The UNE-Flex couplings cushions the effects of overloading. It absorbs the vibrations, thus lessening noise and protecting the machine from the destructive effects of vibration.
There is no metal to metal contact between the axles and the hubs are completely isolated. No lubrication needed. Replacement: Easy and practical. There is no need to move neither the motor nor the machine: it is sufficient to release the lateral washers, thus freeing the coupling. |
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Precision motion control applications require mechanically tight systems, especially between motors, driven loads, and feedback devices, to ensure accurate positioning. Such systems often require shaft couplings that are both torsionally rigid, to accurately transmit rotational position and laterally flexible to accommodate shaft misalignment.
Servometer couplings exhibit both low windup due to the bellows' radial rigidity, and low side thrust due to the bellows' lateral flexibility. Other coupling types have either low windup or low side thrust, but not both.
Since the flexible element is a bellows, the coupling can absorb parallel shaft misalignments of 0.068 in., angular misalignments as large as 31°, or axial movements of 0.230 in. while transmitting torque. Servometer's stock lines of flexible shaft couplings are available with stainless steel hub bore diameters ranging from .079 in. (2 mm) to 1.0 in. (25.4 mm), and with torque capabilities ranging from 2.0 in-oz (1.4 N-cm) to 4000 in-oz (2825 N-cm). Outside diameters range from 0.250 in. (6.35 mm) to 2.40 in. (61 mm) and overall lengths from 0.480 in. (12.19 mm) to 2.16 in. (54.9 mm). Specialized dynamic requirements can be custom designed to fit customer specifications.
Some unique characteristics of Servometer bellows-type flexible shaft couplings are:
- Extremely low elastic windup
- Zero backlash
- Zero cyclic speed variation during 360° rotation
- Minimal side loading
Typical applications include:
- Encoders
- Resolvers
- Servos
- Motion control instrumentation
- Robotics
- CNC machine tools
- Precision positioning |
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David Brown has a range of Flexible Coupling solutions to meet our Customer’s requirements for integration into our gearboxes or to supply on a replacement basis.
Flexible couplings are devices used to connect two shafts together so that power can be transmitted the type of coupling needed depends on the power transmitted. The main aims of couplings are to Connect Gearboxes to motors or gearboxes to a Customer’s Application. David Brown couplings are easy to connect and disconnect and transmit the full power from one shaft to another and are able to compensate for all types of Shaft Misalignment. |
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Largest variety of gear couplings in the market
Covers the widest range of applications
1 1/8 in (29mm) to 43.5 in (1.1m) shaft
7,500 lb-in (0.8 kN-m) to 284 million lb-in (32 x 106 kN-m)
Special custom design coupling available for quick delivery
Slide - short, medium, long, and Xtra long
Overload release Shear Pin, Flangeless - Continuous Sleeve, Mill motor, Floating Shaft, Spacer, Cut-out, Shifter, vertical, double engagement, brake wheel, balanced, continuous lube, Alloy steel, and custom designed for specific application
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| Lovejoy offers a variety of designs and models in its gear coupling family. From standard, off-the-shelf stock to new, high speed, special designs, Lovejoy can satisfy your gear coupling needs. The original Continuous Sleeve, or “C” coupling, offers a lightweight, compact, and simple design without compromising torque carrying capacity. The Flanged Sleeve, or “F” coupling, is available in exposed or shrouded bolt styles in which the number of bolts, size of bolts, and bolt circle are identical with industry standards. The nylon sleeve gear couplings, Nyflex and Mite, are compact, lightweight couplings that use a nylon sleeve and two sintered iron hubs. Lubrication is not required with the nylon sleeve. Lovejoy also has an All Metal Labyrinth Seal coupling and an Alloy Steel coupling. The All Metal Labyrinth Seal coupling is a flanged sleeve style, but uses no elastomeric seals. The Alloy Steel coupling is made from AISI 4140 steel. |
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Falk™ Lifelign® Gear Couplings
Flange sleeve and continuous sleeve
28 sizes, 20 types
Torsionally rigid
Precision-crowned, gear-to-gear flexing element
Bores to 1 200 mm (50 inch)
Capacities to 8 191 813 Nm (72,500,000 lb-in)
Lowest initial cost for high capacities |
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David Brown has a range of coupling solutions to meet our Customer's requirements for integration into our gearboxes or to supply on a replacement basis.
A torsionally rigid, lubricated design that offers high torque capacity, application versatility, and where high torque loads exist or shaft diameters exceed 100mm, the lowest initial cost. Available in 28 sizes, and all featuring triple-crowned teeth, David Brown gear couplings offer the industry leading torque ratings (over 8 million Nm) and the largest bore capacities (up to 1025 mm).
- Type GC02 & GC05 Continuous Sleeve Couplings - Features a one-piece, low profile sleeve encompassing the hubs. Economical and compact they are available in both close coupled and floating shaft models.
- Type G/GF32 Spacer Coupling - For pumps and compressor applications, provide ease of servicing 'connected' equipment.
- Type G/GF52 Floating Shaft Coupling - Used when distance between equipment is too great for spacer couplings. Two single engagement couplings with interconnecting shaft. Also available for vertical mounting.
- Type G/GF20 Close - Coupled Double Engagement Coupling - Design with 2 flex halves to accommodate both offset and angular misalignment. Also available for vertical mounting.
Product Specification:
- Bore Sizes: Up to 1025 mm (40.35 in.)
- Unit Torque: Over 8,000,000 Nm (70,000,000 lb.in.) |
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Cone Drive has a range of gear coupling solutions to meet our Customer's requirements for integration into our gearboxes or to supply on a replacement basis.
A torsionally rigid, lubricated design that offers high torque capacity, application versatility, and where high torque loads exist or shaft diameters exceed 100mm, the lowest initial cost. Available in 28 sizes, and all featuring triple-crowned teeth, David Brown gear couplings offer the industry leading torque ratings (over 8 million Nm) and the largest bore capacities (up to 1025 mm).
- Type GC02 & GC05 Continuous Sleeve Couplings - Features a one-piece, low profile sleeve encompassing the hubs. Economical and compact they are available in both close coupled and floating shaft models.
- Type G/GF32 Spacer Coupling - For pumps and compressor applications, provide ease of servicing 'connected' equipment.
- Type G/GF52 Floating Shaft Coupling - Used when distance between equipment is too great for spacer couplings. Two single engagement couplings with interconnecting shaft. Also available for vertical mounting.
- Type G/GF20 Close - Coupled Double Engagement Coupling - Design with 2 flex halves to accommodate both offset and angular misalignment. Also available for vertical mounting. |
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Falk™ Steelflex® Grid Couplings
25 sizes, 11 types
Torsionally flexible
Spring-steel grid flexing element
Bores to 508 mm (20 inch)
Capacities to 932 000 Nm (8,250,000 lb-in)
Low initial and long-term cost |
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David Brown has a range of coupling solutions to meet our Customer's requirements for integration into our gearboxes or to supply on a replacement basis.
A general purpose, lubricated design that combines the economy and the high torque capacity of a gear coupling, combined with the torsional flexibility of an elastomer coupling. Backed by a 5-year lubrication warranty, David Brown grid couplings require no periodic maintenance when lubricated with David Brown LTG (Long Term Grease) at installation. Featuring 25 sizes, grid couplings can accommodate torque loads of 932,000 Nm and shaft diameters of 508 millimetres.
- Type T10 Close Coupled - A double flexing, close-coupled design for use in four bearing systems. Features a horizontally split cover which allows for gird replacement without the movement of the connected equipment.
- Type T20 Close Coupled Coupling - A double flexing design featuring a vertically split steel cover. Ideal for higher running speeds.
- Type T31 Full Spacer - Complete centre section drops out for easy service of connected equipment bearings and seals. Ideal for pump applications.
- Type T35 Half Spacer Coupling - An economical spacer design for easy service of connected equipment bearings and seals. Ideal for pump applications.
- Type T50 Floating Shaft Coupling - Double piloted design for connecting equipment where the distance between shafts is too large for a spacer type coupling.
Product Specification:
- Bore Sizes: Up to 508 mm (20 in.)
- Unit Torque: Up to 932,000 Nm (8,248,200 lb.in.) |
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Curved Jaw Type Flexible Coupling: MJT Setscrew Type
Merits:
- High Torque
- Vibration Absorption
- Compression type coupling assembled by pressing a polyurethane sleeve into hubs on both sides
- Zero backlash in low torque application
- Excellent flexibility-Torsional vibration can be absorbed as well as parallel and angular misalignments
- Three different hardness sleeves are available
- Excellent electrical insulation
- Identical clockwise and counter-clockwise rotational characteristics
- Operational temperature: -20°C~60°C
- Finished products featuring two different end bore diameters available in stock |
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MJT : Aluminium Curved Jaw
Material:
-Body: Aluminium alloy, Anodic Oxide coated
-Spacer: Polyurethane |
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Precision motion control applications require mechanically tight systems, especially between motors, driven loads, and feedback devices, to ensure accurate positioning. Such systems often require shaft couplings that are both torsionally rigid, to accurately transmit rotational position and laterally flexible to accommodate shaft misalignment.
Servometer couplings exhibit both low windup due to the bellows' radial rigidity, and low side thrust due to the bellows' lateral flexibility. Other coupling types have either low windup or low side thrust, but not both.
Since the flexible element is a bellows, the coupling can absorb parallel shaft misalignments of 0.068 in., angular misalignments as large as 31°, or axial movements of 0.230 in. while transmitting torque. Servometer's stock lines of flexible shaft couplings are available with stainless steel hub bore diameters ranging from .079 in. (2 mm) to 1.0 in. (25.4 mm), and with torque capabilities ranging from 2.0 in-oz (1.4 N-cm) to 4000 in-oz (2825 N-cm). Outside diameters range from 0.250 in. (6.35 mm) to 2.40 in. (61 mm) and overall lengths from 0.480 in. (12.19 mm) to 2.16 in. (54.9 mm). Specialized dynamic requirements can be custom designed to fit customer specifications.
Some unique characteristics of Servometer bellows-type flexible shaft couplings are:
- Extremely low elastic windup
- Zero backlash
- Zero cyclic speed variation during 360° rotation
- Minimal side loading
Typical applications include:
- Encoders
- Resolvers
- Servos
- Motion control instrumentation
- Robotics
- CNC machine tools
- Precision positioning |
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Material:
•Hubs:
(/= AKD-80) Steel
•Bellows: Stainless Steel
(other hub material available on request)
Working Temperature:
• -30°C to +100°C
Higher temperature and speed ratings on request. |
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Oldham Type Flexible Coupling: MOL Setscrew Type
Merits:
- High Torque
- Small Eccentric Reaction Force
- High Allowable Misalignment
- Vibration Absorption
- Recipient of the 1991 Ministry of Economy, Trade and Industry Good Design Award
- Oldham type flexible coupling
- Slippage between hubs and spacer allows high parallel and angular misalignments
- Minimized load derived from misalignments on shafts
- Simple configuration enables ease of assembly
- Excellent electrical insulation
- Operational temperature : -20°C~80°C
- Finished products featuring two different end bore diameters available in stock |
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