Lovejoy L-100 Buna-N/SOX/Urethane 1″ Jaw coupling Replacement – The TSC150 coupling.
TSC150 1″ jaw coupling replacement. Replace your Lovejoy L-100 with a maintenance free, flexible shaft coupling alternative.
Couplings in the industrial sector traditionally are broken into two sectors, the beam/bellows or elastomeric couplings that can only run at angles of1° or less, as they cannot physically flex beyond that, Bronze and Hytrel spider can only run at 1/2°.
Lovejoy L-100 Jaw couplings are a 3 piece elastomeric coupling, an input and output hub and a spider insert, the insert can be made up of 3 different materials SOX – (NBR/Buna-N/Nitrile Rubber), Urethane, Hytrel and Bronze.
Each insert gets progressively stiffer and less able to absorb vibration so the angular misalignment becomes smaller with each insert.
Jaw couplings, the spiders wear after use of 1-2° and being compressed between the two hubs and these hubs can crack are the main maintenance issues with jaw couplings.
The other power transmission couplings are universal joints which are broken into two categories, friction bearing or needle bearing.
The friction bearing universal joints can only run at 1700 rpm and need to be constantly greased otherwise the block heats up and causes the pins in the block to seize, Needle bearings are able to run at 6000 rpm but also need to be greased and eventually replaced.
U-joints can normally only run at 8° otherwise prematurely wearing the bearings within the propeller shaft of the universal joint, the bearing races will start to wear on the outside which means the ball bearings will become loose and that creates vibration and with continual wear the bearings will fail.
Twin Spring Coupling can run up to 25° without needing to be lubrication, and at low angles of misalignment and comparable high speeds to traditional industrial couplings.
Bearings being very precise instruments also need to be contained to ensure infiltration by any foreign contaminants, as things like water, mud, dust or dirt will again cause the ball bearings to seize in their tracks and this means bearing failure.
Being used at high speed for long periods of time produces heat and that can cause the ball bearings to seize inside the bearings leading to premature failure.
The other downside to a universal joint are the yokes which the bearings are contained in, the coupling piece of the yokes are quite tough but the section that contains the bearings not so much as they have to hold the bearings, this is a weak point as the bearings are usually less than 2″ across.
So the machining to contain the bearings is a lot smaller than the rest of the yoke, which means the likely of them cracking is that much higher.
Cracking leads to catastrophic failure and replacement of both the yoke and universal joint is assured. This makes it an expensive repair as with the price of the yoke and universal joint, it is usually cheaper just to replace everything, both yokes and the propeller joint.
Lovejoy L-100 alternative with the TSC150.
Twin Spring Coupling is different it replaces the entire coupling jaw coupling, U joint, yokes/hubs, propeller/cross bearings/spider insert, everything, with a simple one piece design.
By being a one piece design also means Twin Spring Coupling wont break like the yokes do in traditional Lovejoy L-100 joints.
Our coupling is available in all the standard industry splines for easy replacement or retrofit for OEM.
Boston Gear – FC25 XFCBB Bronze, FC30 XFCA Poly, FC38 Rubber XFCR, J150, JS175 JS200, UJAS 12-12, UJNL 16-16.
Curtis – CJ644, CJ645.
SKF – FRC 150, SKF Flex 90-100, UJMA25.
TB Woods – Dura Flex WE10, L Jaw L090/L100/AL100/SS100/L110/AL110/SS110, L150/AL150/SS150 G Flex grid coupling 1000T10.
Lovejoy – L-090, L-099, L-100, C-226 C-276 (SOX) CJ28/38, CJ24/32, D-3, D-4, LOJ-6, DD-3, DD-4 Uni joint D-5,NB-6, DD-5, DD-6, LOJ-8, Uniflex U100,U125, U137, Saga S13, S Flex Size 6-9, Delta Flex 40/40HT.
Martin – Quadra Flex Size 8-9 Thermo Plastic Rubber (TPR), Size 6 Hytrel., MS150 Buna-N, ML150 Buna-N, ML100 Hytrel.
Rexnord – Omega Orange 10-15, Omega HDY 5-10, Viva 130.
Belden – MS20270B16, UJ-NB1000x5001, UJ-NB2000x1000.
Falk – Wrapflex 10R.
Guardian Couplings – Guardex M-48, Spec I32, LJW100-LJW190.
SIT – Trasco ES, EU5P, EU5H, Servo Plus 45.
KTR – Rotex AL-H 28/38 (92,98, 64) 38-92A, GJL 38 (92A).
For more information on the TSC150 go to https://twinspringcoupling.com/coupling-products/tsc-150/.