Lovejoy D-6B Block and Pin universal joint replacement, the TSC150.
TSC150 3/4″ maintenance free universal joint alternative, replace your D-6B universal joints.
Couplings in the industrial sector traditionally are broken into two sectors, the elastomeric couplings that can only run at angles of 1° or less, as they cannot physically flex beyond that, bronze and Hytrel spider inserts run at 1/2°. The Lovejoy D-6B is a universal joint and belongs to the other group.
The Lovejoy D-6B is a block and pin/friction bearing universal joint and can only run at 1750 RPM maximum to reduce wear and creation of heat that can lead to the block seizing, this is why it must stay lubricated at all times.
The other are friction bearing universal joints normally only run under 8° otherwise prematurely wearing the bearings within the propeller shaft of the universal joint, the bearing pins will start to wear so the bearing block will become loose and that creates vibration and will needing to be replaced.
Twin Spring Coupling can run up to 25° without needing to be lubrication, and at low angles of misalignment and higher speeds to traditional industrial couplings.
Bearing blocks while not being very precise instruments needs to be contained to ensure no infiltration by any foreign contaminants, as things like water, mud, dust or dirt will again cause the bearing pins to start wearing in their holes and this means failure because of increased vibration.
Being used at high speed for long periods of time produces heat and that can cause the block pins to expand and seize inside the bearing block holes 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 D-6B Universal Joint alternative the TSC150.
Twin Spring Coupling is different it replaces the entire U joint, yokes, propeller/cross bearings 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 D-6B universal joints.
Our coupling is available in all the standard industry splines for easy replacement or retrofit for OEM.
Flexible to 25 degrees.
Speeds of Up to 7000 rpm.
Constructed of 4140 Alloy.
Replaces.
Boston Gear – FC25 XFCBB Bronze, FC30 XFCA Poly, FC38 Rubber XFCR, J150B, JS175B, JS200B, UJAS 12-12, UJNL 16-16.
Guardian Couplings – Guardex M-48, Guardex I-45, LJW L100, LJW L110, LJW L150.
SKF – FRC 70, SKF Flex 70, PHE L100, PHE L110, PHE L150, UJMA25, UJ338, UJ861, N1000, L600, UJ811, UJ812, UJ880, UJ340, UJ514G, UJ1501, UJ840, UJ838.
Ruland – UJ-HD875, UJ-HS750, JC jaw , MJC jaw.
TB Woods – Dura Flex WE10, L Jaw L100, AL100, SS100, L110, AL110, SS110, L150, AL150, SS150, G Flex grid coupling 1000T10/1000T20.
Lovejoy – D-5B, D-6BSS, C-226, C-276 (SOX), CJ28/38, CJ24/32, D-3B, D-4B, LOJ-6B, DD-3B, DD-4B, D-5B, NB-6B, DD-5B, DD-6B, LOJ-8B, Uniflex U100, U125, U137, Saga S13, S Flex Size 6-9, Delta Flex 40/40HT.
Belden – UJ-NB1000x500, UJ-HD1250, UJ- HS1000, UJ-HS1250.
Falk– Wrapflex 10R.
Rexnord – Omega E10, E10M, E15, E15M, Omega HDY5, HDY10, Viva V130.
SIT – GU5P, GU5E, GU5H, Trasco ES Size 48 Green, 55 Red, 65 Yellow, Servo Plus 45.
KTR – Rotex AL-H 28/38 (92,98, 64), 38-92A, GJL 38 (92A).
Spicer – 5-264X, 5-110X, 5-103X (1000SG), 5-110X, 5-170X, 5-101X, 5-105X, 5-92X, 24-92X.
Neapco – 1-0170, 1-0675, 1-1475, N1000, L600, 1-0616, 1-0475, 1-0121, 1-0300, 1-0105, 1-0171, 1-0103.
Moog – 338, 838, 340, 341, 514G.
Rockwell – CP101X, 1FR.
https://en.wikipedia.org/wiki/Coupling#Twin_spring_coupling.
For more information on the TSC150 go to https://twinspringcoupling.com/coupling-products/tsc-150/.
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