Menu
Discover the New “My Dashboard” Experience

Join Eric Stasiowski, manager – online marketing & ecommerce, to see how you can save key items like documents, bearings, and distributor locations directly to your account.

View Video
Analyze Bearing Performance in an Application with Timken ® Syber ® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

Learn More
Simplified Gear Force Analysis

Alex Waye, Timken Application Engineer, shows you how to instantly compute tangential, radial, and axial forces for better design decisions.

View Video
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information
    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.
Unit of Measure

Notes

Disclaimer

 N/A 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 

 N/A
  • 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 

 N/A LF250-ELE-HY-W/HDWR

Coupling Size

 N/A LF250

Coupling Type

 N/A Torsional

Material

 N/A Hytrel®

Bore Type

 N/A Element w/ Hardware

Color

 N/A Beige

Weight

 N/A 25.13 lb

Dimensional Data

Thread (Dimension T)

 N/A M20

Length thru Bore

 N/A 3.030 in100.00 mm

Dimension HD

 N/A 6.299 in160.00 mm

Max. Bore (Dimensions ID1/ID2) - Flanged Hubs

 N/A 5.000 in130.00 mm

Cubic inches

 N/A 542.44393 in³

Performance Data

Normal Temperature Range

 N/A -60 to 250 ºF

Torsional Element Specifications

Torsional Element Specifications

 N/A
    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 

 N/A
  • 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
By clicking Submit, you consent to the personal information you provide being used in the manner as described in our Privacy Notice, including access to that information by Timken personnel who may be located outside your home country. In addition, you agree that the CAD drawings are for your personal, one-time use only, and that you will not modify or create any compilation or derivative work using the CAD drawings or distribute or display the CAD drawings on any website or other media.