RFQ Checklist
- Specify coupling type (gear, disc, jaw, fluid, grid)
- Provide motor shaft and gearbox shaft diameters
- State continuous application torque and maximum startup shock
- Define operational RPM and balancing requirements
High-performance torsionally rigid steel couplings, flexible rubber couplings, and fluid couplings designed to protect your gearbox from misalignment and severe shock loads.

| Metric | Typical Range | Why It Matters |
|---|---|---|
| Misalignment Tolerance | Varies by coupling type (e.g., up to 3 degrees angular) | Absorbs assembly inaccuracies and thermal expansion, saving the gearbox bearings from destructive side loads. |
| Shock Absorption | Fluid/Elastomeric types offer high damping | Protects the gear teeth from sudden jams or heavy startup inertia. |
RGB-COUP
Engineering confirms bore, keyway, torque, speed, and misalignment expectations before sending matched coupling files.
Product-family brief and RFQ worksheet are public.
Released after shaft and misalignment review.
STEP, IGES, SolidWorks, 2D PDF or DXF on request
Use the no-login worksheets before sending drawings or requesting model-specific CAD. They help engineering confirm torque, backlash, interface, inspection, and replacement assumptions for Precision & Industrial Couplings.



We sell them both as standalone components and as part of a complete, pre-assembled drive package with our gearboxes.
A fluid coupling is typically recommended on the input side for soft starting, protecting both the motor and gearbox from extreme startup inertia.
Inquiry Email
Please attach 2D/3D CAD drawings, target torque/speed, and quantity.