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The  Lovejoy NB-6 needle bearing universal joint is a high speed coupling but requires extra maintenance and replacement parts in its lifespan.

At Twin Spring we don’t offer any because we don’t use bearing crosses like in uni joints. The Twin Spring design absorbs vibration and one ball bearing allows the coupling to flex to 45 degrees.

Offering high speed (Up to 7000 rpm) and high torque (up to 1800 in lbs. nominal static torque)

The Twin Spring Coupling is a great maintenance free replacement for the Lovejoy NB-6 U joint.

Industrial power transmission couplings

Lovejoy NB-6B – TSC150 1/2″

$150.00

Lovejoy NB-6B 1/2" universal Joint, replace today with a Twin Spring Coupling TSC150.

Flexible to 35°. High Speed Up to 7000 RPM No inserts - No maintenance. One piece design - No broken hubs, worn bearings or greasing.  

Industrial power transmission couplings

TSC300 Industrial 1/2″ Keyway

$190.00

TSC300 Industrial 1/2" coupling

300 ft lb replacement for mechanical power transmission couplings and universal joint in any industrial power transmission application. 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 beam, bellows, jaw, elastomeric type couplings and the universal joint. No bearings to grease or replace. No worn spider or inserts to replace. Flexible as a universal joint. Torsionally rigid for high speed applications. One piece design.

Replaces

Spicer                         KTR                          SIT. Huco                           Altra Motion              Belden. Tsubaki                       R+W                         Lovejoy. TB Woods                  Guardian Couplings  Ruland. Helical                       Boston Gear               Neapco. Moog                          SKF.