LORD RUBBER DRIVELINE COUPLINGS - LCR SERIES

Horsepower Rated: 4 hp to 135 hp at 2000 rpm

"For driveline Angular Misalignment,Torsional Vibration and Shock Protection nothing out performs LORD LCR Series Couplings..."

The LCR series has been developed to overcome numerous torsional problems associated with vehicular and industrial driveline systems. They increase equipment life by protecting against torsional vibration, shock and misalignment.

  • Greater misalignment accommodation.
  • Isolation of low frequency disturbances.
  • Isolation of torsional shock.

These ring-type, highly flexible elastomeric couplings for accessory drives are designed to eliminate lubrication and maintenance. They are easy to install.

LORD LCR Couplings reduce noise transmission and increase bearing and driveline life through greater misalignment accommodation, isolation of low frequency disturbances, and isolation of torsional shock.

Rubber-Parts-Catalog-Delta-Flex-LORD-DYNAFLEX-Diveline-Coupling-LCR-Type
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Dynaflex LCR couplings were designed and developed by Lord Corporation and have been in service since the early 1960's. The basic concept was intended for specific applications requiring low cost flexible couplings to accommodate all forms of misalignment and provide torsional resilience.

Typical Applications

LORD Corporation's Dynaflex LCR Couplings are useful for a wide range of rotary drive applications, from lawn and Garden tractors to large construction equipment, including U-Joint replacement.

Typical End Product Application
Farm Tractor Trouble-Free Hydraulic Pumps Devices
Lawn & Garden Tractors Maintenace Free Main Drive Couplings
Dynamometer Protects Driveline from Failure
Snowmobile Reliable Main Drive Coupling
Vibratory Rollers Absorbs High Torsional Shock Loads in Eccentric Drive Units
On & Off Highway Vehicles Isloates and Protects Auxiliary Driveline Systems
Industrial Machinery Provides Inexpensive Coupling for Maximum Angular Misalignment and Vibration Control
Agricultural Equipment Replaces Conventional Universal Joints and Provides Torsional Flexibility

Demanding flexible coupling specifications for this mower's main drive shaft includes both high frequency noise attenuation and the accommodation of multi-direction alignment requirements.

LORD LCR series couplings are maintenance-free and exhibit long service life.

The elastomer in LCR couplings attenuates structure-borne noise and isolates vibration from components that act as noise generators.

The coupling design incorporates metal inserts bonded in an elastomeric ring which loads the flexing element in compression to transmit torque.  Misalignment motion is accommodated by deflecting the elastomer in shear which allows extreme misalignment without high reaction forces.

They are ideally suited for elastomeric universal joints, particularly where noise reduction or shock attenuation is required.

Absence of metal-to-metal contact through the coupling eliminates the need for lubrication, maintenance and reduces noise transmissions. Installation is accomplished by insertion between simple parallel flanges. This light weight, high capacity coupling element can be arranged in a single or double series to match specific needs.

The vibratory roller eccentric application of the LCR coupling provides a low cost method of increasing bearing life, and protects other drive componets.

 

Static Load Deflection Characteristics of LCR-300-600-028A & LCR-300-600-046A reference curves.

Torsional resilience is one of the important characteristics of ring couplings. They isolate torsional vibration and reduce the harmful effects of torsion shock.

Figure 1 shows the torsional spring rate of two sizes.

Accommodating axial misalignment along the axis of shafts without high reaction forces is a unique feature of ring couplings.

Figure 2 shows this load deflection relationship.

Parallel misalignment can be especially difficult for most coupling designs. Not so for ring couplings.

Figure 3 shows the low load deflection values in the radial direction.

Curves of other LCR parts are similar in shape and are available upon request.

 

Rubber-Parts-Catalog-Delta-Flex-LORD-DYNAFLEX-Coupling-LCR-Type-table.jpg

Specs
Specs Metric
Dimensions
Dimensions Metric
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Part #
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Torque Rating lbs-in
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Capacity per 100 RPM (hp)
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No. of Inserts
LCR-275-400-004A 125 0.20 4
LCR-275-400-009A 290 0.46 4
LCR-275-400-017A 550 0.87 4
LCR-300-600-046A 1440 2.28 6
LCR-300-637-046A 1440 2.28 6
LCR-400-800-060A 1900 3.01 8
LCR-400-800-115A 3600 5.71 8
LCR-400-800-135A 4200 6.66 8
LCR-450-600-011A 350 0.56 6
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Part #
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Torque Rating N-mm
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Capacity/100 rpm (kW)
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No. of Inserts
LCR-275-400-004A 14 N/mm 0.15 kw 4 ea.
LCR-275-400-009A 33 N/mm 0.34 kw 4 ea.
LCR-275-400-017A 62 N/mm 0.65 kw 4 ea.
LCR-300-600-046A 163 N/mm 1.70 kw 6 ea.
LCR-300-637-046A 163 N/mm 1.70 kw 6 ea.
LCR-400-800-060A 215 N/mm 2.24 kw 8 ea.
LCR-400-800-115A 407 N/mm 4.26 kw 8 ea.
LCR-400-800-135A 475 N/mm 4.97 kw 8 ea.
LCR-450-600-011A 40 N/mm 0.42 kw 6 ea.
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Part #
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A (in.)
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B (in.)
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C (in.)
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D (in.)
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E (in.)
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F (in.)
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G (in.)
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H (in.)
LCR-275-400-004A 2.75 in. 0.32 in. 4.00 in. 1.62 in. 1.00 in. 0.91 in. 0.12 in. 0.75 in.
LCR-275-400-009A 2.75 in. 0.32 in. 4.00 in. 1.62 in. 1.75 in. 0.91 in. 0.12 in. 1.50 in.
LCR-275-400-017A 2.75 in. 0.32 in. 4.00 in. 1.62 in. 1.00 in. 0.91 in. 0.12 in. 0.75 in.
LCR-300-600-046A 3.00 in. 0.39 in. 4.06 in. 1.88 in. 1.53 in. 1.00 in. 0.12 in. 1.28 in.
LCR-300-637-046A 3.00 in. 0.39 in. 4.76 in. 1.88 in. 1.48 in. 1.00 in. 0.12 in. 1.24 in.
LCR-400-800-060A 4.00 in. 0.51 in. 5.21 in. 2.74 in. 1.50 in. 1.00 in. 0.12 in. 1.25 in.
LCR-400-800-115A 4.00 in. 0.51 in. 5.21 in. 2.74 in. 1.50 in. 1.00 in. 0.12 in. 1.25 in.
LCR-400-800-135A 4.00 in. 0.51 in. 5.21 in. 2.74 in. 2.00 in. 1.00 in. 0.12 in. 1.75 in.
LCR-450-600-011A 4.50 in. 0.41 in. 5.56 in. 3.40 in. 0.68 in. 1.00 in. 0.12 in. 0.43 in.
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Part #
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A (mm)
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B (mm)
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C (mm)
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D (mm)
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E (mm)
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F (mm)
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G (mm)
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H (mm)
LCR-275-400-004A 69.9 mm 8.1 mm 101.6 mm 41.2 mm 25.4 mm 23.1 mm 3.2 mm 19.1 mm
LCR-275-400-009A 69.9 mm 8.1 mm 101.6 mm 41.2 mm 25.4 mm 23.1 mm 3.2 mm 19.1 mm
LCR-275-400-017A 69.9 mm 8.1 mm 101.6 mm 41.2 mm 44.5 mm 23.1 mm 3.2 mm 38.1 mm
LCR-300-600-046A 76.2 mm 9.9 mm 103.1 mm 47.8 mm 38.9 mm 25.4 mm 3.2 mm 32.5 mm
LCR-300-637-046A 76.2 mm 9.9 mm 120.9 mm 47.8 mm 37.6 mm 25.4 mm 3.2 mm 31.0 mm
LCR-400-800-060A 101.6 mm 13.0 mm 132.3 mm 69.6 mm 38.1 mm 25.4 mm 3.2 mm 31.8 mm
LCR-400-800-115A 101.6 mm 13.0 mm 132.3 mm 69.6 mm 38.1 mm 25.4 mm 3.2 mm 31.8 mm
LCR-400-800-135A 101.6 mm 13.0 mm 132.3 mm 69.6 mm 50.8 mm 25.4 mm 3.2 mm 44.5 mm
LCR-450-600-011A 114.3 mm 10.3 mm 141.2 mm 86.4 mm 17.3 mm 25.4 mm 3.2 mm 10.9 mm