Lovejoy D-7 block and pin universal joint replacement with the TSC300 3/4″ power transmission couplings.
Replace any universal joints in any industrial power transmission application with our bearing free replacement.
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 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 elastomeric type couplings and u-joints.
The problem with both couplings are their fundamental design weaknesses, for cardan joint couplings they can run fast but cannot work at over 4 degrees of misalignment before they start to wear out.
A higher speed alternative, 1750 RPM isn’t fast enough? The TSC 300 can run at 7000 RPM.
The Lovejoy universal joint are broken into two categories.
- Block and Pin or Friction bearings They can run at 1750 rpm, and at a maximum of 25 degrees. Adding to that they need to be constantly greased otherwise het generated when running will cause the block to seize.
- Needle bearings are the other option, a more expensive universal joint but it will also run at 35 degree and up to 6000 rpm.
Both options have repair kits but they can cost as much as 50% of the original purchase price plus installation.
This quickly adds to the cost of ownership of using Uni joints, as the constant monitoring and upkeep adds a layer of labor cost to a coupling that doesnt exist with the Twin Spring range of couplings.
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 and a increased annual maintenance bill.
Lovejoy D-7 and the TSC300 how they are different.
The one piece design means no greasing, no replacing components just a annual checkup, vital in industrial 24/7 applications.
Twin Spring Coupling TSC300 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.
Flexible up to 45 degrees.
Boston Gear – FC30 XFCBB Bronze, FC38 XFCA Poly, FC 45 Rubber XFCR, J175, JS250, JS300, UJAS 16-16, UJNL 20-20.
Ruland – UJ-HD1125, UJ-HS875, JC jaw , MJC jaw.
SKF – FRC180, SKF Flex 110-120, UJMA32.
Lovejoy L-070, L-075, L-090, L-099, D-5B, D-6B, D-8B, NB-6B, NB-10B. C-226 C-276 (SOX), CJ 42/55 – 48/60 (92A), 38/45 (98/95A), 38/45 (64D), D-5, NB-6, DD-5, DD-6, LOJ-8, Uniflex U150R, Saga S15,
S Flex Size 7-10, Delta Flex 50.
Belden – UJ-HD1500, UJ-HS1500, UJ-HD1750, UJ-HS1500, UJ-HS1750, UJ-NB1500x750, SS-UJ-NB1500x750.
Rexnord – Omega Orange 15-20, Omega HDY 15-20, Viva 150-190.
Falk – Wrapflex 20R.
Guardian Couplings – M-65, LJWL110-LJWL225.
SIT – Trasco ES 65 Red & Green, 75 Red, GU5P, GU5E, GU5H.
KTR – Rotex AL-H 38/42/48 (42-92A) 48-92A, GJL 38/48/55/65 (48 92-98) (55 92-98) (65 92A).
For more information on the TSC300 go to https://twinspringcoupling.com/coupling-products/tsc-300.