Lovejoy L-276 1 1/4″ SOX, Buna-N, NBR Jaw coupling alternative, the TSC500 coupling.
TSC500 1 1/4″ jaw coupling replacement. Replace your Lovejoy L-276 with a maintenance free, flexible shaft coupling alternative.
Lovejoy 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 – Buna-N/NBR/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 and can only run at a slower speed.
The Lovejoy L-276 Jaw type coupling can be replaced with the TSC500 model, regardless of whether it uses a SOX/Buna-N, Urethane, Bronze or Hytrel spider insert.
Couplings in an industrial power transmission setup have a number of issues to contend with, annual maintenance, fundamental design flaws coming from a century old technology, industry has evolved but the technology that makes up the standard coupling and universal joint has not.
Twin Spring Coupling offers something different.
Industrial power transmission is broken into two main areas, high speed low angle of misalignment and lower speed higher angle of misalignment.
Traditionally these two needs have been service by two different couplings – Motion control couplings like Lovejoy jaw, elastomeric type couplings and the universal joint.
The problem with both couplings are their fundamental design weaknesses, for motion control coupling they can run fast but cannot work at over 1 degrees of misalignment before they start to wear out.
The spider insert regardless of what material it is made of will need replacement, the softer SOX/Buna-N/Urethane need to be replaced more often as it suffers from compress with general day to day usage, but also any angular misalignment means the “legs” of the spider wear.
Both types of wear increase vibration which means equipment damage is possible. Even though the jaw coupling is a safety coupling that is if the spider insert fails all together it will still function but with a large increase of vibration.
The universal joint can run at more than 4 degrees but needs constant maintenance to keep the bearings (Friction or Needle) greased or they too will wear out quickly.
On top of that they traditionally cannot run over 8 degrees before technical issues like balancing and bearing wear become issues. In a 24/7/365 situation like industrial power transmission that’s going to create interruption due to equipment downtime and a increased annual maintenance bill.
Lovejoy L-276 1 1/4″ alternative the TSC500.
Twin Spring Coupling has no internal components so no annual maintenance and can run at high and low speed as needed.
Our coupling is available in all the standard industry splines for easy replacement or retrofit for OEM. Now available in Metric sizes as well.
Flexible up to 25 degrees.
Speeds of up to 7000 rpm.
Constructed of 4140 Alloy.
Ruland – UJ-HD1250, UJ-HS1125, JC jaw, MJC jaw couplings.
Guardian Couplings – Curved jaw 28/38 Green, 38/45 Red, 42/55 White, 48/60 White , Guardex M-80, Guardex I-65, LJW L150, LJW L190, LJW L225.
TB Woods – Dura Flex WE40, L150, AL150, SS150, L190, L225, L276, G Flex grid coupling 1000T10 – 1000T20- 1050 & 1060.
Lovejoy – L150, L190, D-7B, D-8B, NB-8B, NB-10B, DD-7B, LOJ-10B, C226, C276 (SOX), CJ 55/70 – 65/75 (92A), 42/55 – 48/60, 55/70 (98/95A), 42/55 – 48/60 (64D), Uniflex U-150R, Saga S18, S Flex 8-12, Delta Flex 50HT/60.
Curtis – CJ648B.
KTR – Rotex AL-H 38/42/48 (42-92A) 48-92A, GJL 42/48/55/65 (48 92-98/55 92-98) (65 -92A).
SKF – FRC110, SKF Flex 90, UJMA40, PHE L150, PHE L190, PHE L225, 2200, UJ344AG, UJ814, UJ815, 1050TGHSET.
Boston Gear – FC45 XFCA Poly, J200B, UJAS 16-16, UJNL 24-24.
Rexnord – Omega E30, E30M, E40, E40M, Omega HDY 30, Viva V190, V215, Falk Wrapflex 30R.
SIT – GU7P, GU5E, GU7H, Trasco ES 75 red and green.
Martin – Quadra Flex Size 11 Thermo Plastic Rubber (TPR), Size 8 Hytrel, MS150 Hytrel., ML190 Hytrel.
Spicer – 5-3214X, 5-3235X, 5-554X, 5-129X, 1240.
Neapco – 1-1875, 1-2075, 2200, 1-0005, 2-2421.
Moog – 344, 880, 882, 814, 1300.
Rockwell – L14N.
For more information on the TSC500 go to https://twinspringcoupling.com/coupling-products/tsc-500/.