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Lovejoy brings to the market the best disc coupling yet to be offered. The Lovejoy 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 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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Disc Couplings
All disc couplings now have a black anodized finish.
Ruland disc couplings are available in single and double disc styles with bore sizes ranging from 1/8" to 1 1/4" in the inch series and 3mm to 30mm in the metric series. The disc coupling is composed of two black anodized aluminum hubs, multiple flat stainless steel disc springs and a center spacer for double disc styles. The center spacer is available in a choice of anodized aluminum or insulating acetal for electrical isolation. The thin discs allow for a substantial amount of angular and parallel misalignment between shafts, while remaining rigid under torque loads. The disc coupling, as a result, is a high performance motion control coupling with excellent high speed capabilities (up to 10,000 rpm), strength and torsional stiffness characteristics, and low inertia for today's highly responsive systems.
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The Zero-Max CD Coupling is a unique hybrid coupling combining the best features found in both steel disk and elastomeric couplings. Through its patented open arm design and use of rugged composite materials, the coupling offers high misalignment and high torsional stiffness.
All models are available with Setscrew or Clamp style hubs. Hubs are available with steel or aluminum hubs for single flex and double flex.
Single Flex and Double Flex are now available with Low Inertia Aluminum Hubs.
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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 disc coupling is made with two hubs and a thin metallic disc. The metallic disc is the torque-transmitting element. This type is designed to bend in different directions (parallel offset). The disc design is popular in servo, stepper and drive applications for taking the load off the bearings.
Two hubs & thin metallic disc
• Metallic disc transmits torque
• Two-disc style allows bends in different directions (parallel offset)
• Misalignment up to 5 degrees
• Torsionally rigid
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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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Type : Material : Hardness : Surface Treatment
MCGL Aluminum Die Casts - Electroless Nickel Plating
MCGLLK Aluminum Die Casts - Electroless Nickel Plating
MCGLRK Aluminum Die Casts - Electroless Nickel Plating
MCGLWK Aluminum Die Casts - Electroless Nickel Plating
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These couplings are designed for use on general applications. The units are offered as standard, but can also be modified to incorporate options including torque limitation, torque measurement, etc. The arrangement maybe adapted to permit connection to machines by any conventional form.
• DS units will accept angular & axial misalignment only. If radial misalignment is expected, D or DJ units should be considered.
• DJ units consist of factory assembled transmission units. Installation involves fitting this transmission unit between the hubs and tightening the attachment screws only. This leads to easier and more rapid installation.
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HS High Performance Couplings
The operating principle of disc couplings means that they can be designed using any even number of bolts (4 or above). Half these bolts fit to the "Driving" side and half to the "Driven" side. Hence, in a coupling with a total of 6 bolts (6HS), drive is through 3 bolts. This means that, for a given diameter of coupling, more torque can be transmitted through the 8-bolt (8HS) unit than the 6-bolt (6HS) coupling. However, as the number of bolts increases on a given diameter, the ‘span’ between them decreases and,
hence, so does the flexibility of the discs.
This brochure outlines couplings with 6, 8 & 10-bolt arrangements. The 6-bolt units have the higher flexibility and the 10-bolt units the higher torque capacity. The 8- bolt (8HS) units offer a compromise of flexibility against torque capacity and are often a good starting point if misalignment expectations are unknown.
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Powerful and compact
Torque transmission is possible by means of PETER shrink-on disks.
The principle is thoroughly convincing especially in input and output connections by means of hollow shafts. Contrary to keyed connections, the non-positive connection by means of shrink-on disks permits considerably thinner wall thicknesses for the hollow shafts since the greatest part of the torque transfer is absorbed by the shrink-on disk and the shaft is not weakened by additional slots.
This results in lower shaft diameters and consequently volumetric savings in the remaining system. Weight, moments of inertia and space can be elegantly saved in this manner.
Other factors in favour of shrink-on disks are
• high performance density
• detachable connection
• rapid and simple assembly
• economic use
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CHARACTERISTICS
1. SLIT INNER RING
Low load losses and pressures on the hub.
2. BALANCING OF SMALLER DEVIATIONS IN TOLERANCES
For more information please contact our Technical Department.
3. HIGHEST RELIABILITY
Applicable for static, dynamic and impact loads.
4. SIMPLE MANUFACTURE OF THE COMPONENTS
Only low demands are made to the functional surfaces of the clamped
parts.
5. ABSOLUTE INTERCHANGEABILITY
Shrink Discs RINGFEDER® operate without any form closure.
6. EASY MOUNTING
Machining or fitting work is not required, standard tools suffice.
7. SHORT ASSEMBLY TIMES
Cost savings especially in serial production.
8. EASY REMOVAL
After loosening of the locking screws, the Shrink Disc RINGFEDER® is
released. The hub can be moved on the shaft freely.
9. LOW SUSCEPTIBILITY TO CONTAMINATION
Increased durability, as after tightening of the locking screws the
contact surfaces are pressed firmly together. Dirt and moisture cannot
ingress the functional surfaces.
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RLK 603:
standard fastening of
hollow shafts to shaft ends
low cost
hollow shaft diameter from 11 to 400 mm
torque up to 112 kNm
axial force up to 5600 kN
RLK 608:
new and simple fastening of hollow shafts to shaft ends
improved size/torque ratio
quick and simple mounting
secure tightening of clamping screws without a torque wrench
accurate/ true running after assembly
closed design, therefore impervious to dirt
Shaft diameters from 30 up to 440 mm
Torque range up to 1500 kNm
Axial forces up to 8400 kN
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A hoop of assembly is a mechanical pressure of external tightening. It solidarizes closely and without plays of the hollow shafts on solid shafts.
- Double disc has: it transmits without key of the couples and the great axial loads. Interchangeable with the standards of the market.
- Simple disc has: powerful mechanical connection. Fast tightening without torque wrench.
Absence of pitting corrosion, easy disassembling
Extraordinary report/ratio power obstruction.
3 families diameter 30 to 480
Couples to 1.412.000 Nm
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