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Part Number 68514450682
Part Number 68514450682, LF Series Base Element with Hardware
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The heart of the LF Series coupling is the flexible base element. This element allows the customer to make their own shaft hubs from steel bar stock or use existing hubs. Ideal for quick prototype testing, retrofit and high volume applications.
Notes
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Specifications
·
Dimensional Data
·
Performance Data
·
Torsional Element Specifications
·
Features
Notes
Disclaimer
Lovejoy: CAD Models are accurate envelope dimensions only. Features such as bore size and keyway are not rendered or are only representative. Contact Lovejoy Technical Support or refer to product catalogs for details.
Notes
For Hytrel, dynamic torsional stiffness values are non-linear with respect to torque. Value given is for 100% of nominal torque.
Angular and parallel misalignment values are dependent on speed, and for rubber elements, should be adjusted according to figure 4. Hytrel® elements are only for applications where the driven component is piloted to the driver for SAE and DIN established alignments (i.e. Hydraulic pump flange-mounted to engine flywheel housing).
Hytrel® elements are only for applications where the driven component is piloted to the driver for essentially perfect alignment (hydraulic pump flange-mounted to engine housing).
Specifications
Description
LF250-ELE-HY-W/HDWR
Coupling Size
LF250
Coupling Type
Torsional
Material
Hytrel®
Bore Type
Element w/ Hardware
Color
Beige
Weight
25.13
lb
Dimensional Data
Thread (Dimension T)
M20
Length thru Bore
3.030
in
100.00
mm
Dimension HD
6.299
in
160.00
mm
Max. Bore (Dimensions ID1/ID2) - Flanged Hubs
5.000
in
130.00
mm
Cubic inches
542.44393
in³
Performance Data
Normal Temperature Range
-60 to 250
ºF
Torsional Element Specifications
Elements made of DuPont’s Hytrel® elastomer compound are torsionally much stiffer than natural rubber (20 times stiffer) and were developed for combustion engine / hydraulic pump applications. Hytrel® elements have 20% greater torque capacity as compared to rubber elements. The torsionally stiff Hytrel® element moves the harmful vibration resonance frequency above the operating RPM range. The element design also reduces harmful radial and axial reactionary forces.
Operating Temperature Range: -60° to 250° F
Maximum Angular Misalignment: 0.25°
Features
Features
Wide range of standard designs and materials
Application versatility
Shaft to shaft or flywheel to shaft designs
Designed to accommodate substantial shock loads, vibration, and misalignment
Low moment of inertia
Electrically insulating
No lubrication, maintenance free
Unique air-flow cooling design
Different element stiffness values allow for torsional tuning of applications with diesel engines
Economic design allows for cost effective solutions for torsional applications
Proven L-LOC spline-clamping hub virtually eliminates spline shaft profile wear and “fretting”
Oil, heat, and corrosion resistant elements (Hytrel®, Zytel®)
When used with S-bolts, the coupling can accommodate some end float
S-bolts accommodate applications requiring “blind” assembly
Model 6 unique spacer designs span gaps between equipment in excess of the normal equipment separation
Model 6 design available with bearings for high speeds and large amounts of equipment separation
MORE IMAGES
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LF Series Torsional Base Element - HTR
·
LF Series Torsional Base Element - Hytrel®
·
LF Series Torsional Base Element - Zytel®
DOWNLOADS
Torsional Products Catalog
(PDF, 0KB)
LF Installation Instructions - Hytrel
(PDF, 0KB)
LF Installation Instructions - Model 6
(PDF, 0KB)
LF Installation Instructions - Models 1, 2, & 3
(PDF, 0KB)
