Pro Grade Buna N Jaw Coupling Insert Spider For Heavy Duty Power Transmission Rock Solid L190 Build Designed For Top Shelf Torque Transfer And Smooth High Speed Runs Built Tough To Outlast Any Grind Shift

Heavy Duty Jaw Coupling Spider Insert For Torque Transfer
✔️ Made from tough Buna N rated for strong torque and high speed runs

Replacement spider inserts fit standard six jaw housings to absorb shock and carry rotational force through motors and conveyor drives. The flexible polymer matrix isolates harmonic vibration while holding minor shaft offsets steady during nonstop shifts. This listing includes one durable rubber unit ready to mount directly onto existing metal hub faces.

✅ Rated torque capacity hits 1726 in-lb for stubborn industrial jobs
✅ Top speed holds steady at 5000 RPM without losing traction
✅ Runs cool across a wide heat window minus 40 to plus 212 Fahrenheit
✅ Solid square build measures 4.47 inches across with a 2.125 inch center hole

💡 Why choose a Buna N rubber coupling insert for heavy drive shafts?

You keep your machinery handy and operating clean when the soft elastomer absorbs the kinetic energy before it hits the metal. Here is what makes swapping a fresh unit worth your time:

- A properly sized spider acts as a mechanical fuse that shields expensive driveline parts from sudden whip damage

- Rubber flexibility locks down parallel and angular gap changes while spinning rapidly on active shift lines

- Clearing out cracked cores removes hidden drag so the whole setup pulls harder and burns less power