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Series RRJ · Flector

Elastic Coupling RRJ

Elastic finger coupling with torsional damping. A compromise between the rigidity of a pin coupling and the flexibility of a classic flector. Radial disassembly.

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Multi-tailles
Gamme RATHI

Hautes capacités
Couple nominal

Désalignement +
Tolérant

Doigts caoutchouc
Élastomère

Doigts élastiques en caoutchouc — capacité d'amortissement modérée

Démontage radial du flector — sans déplacement axial des arbres

Tolérance correcte aux désalignements parallèles et angulaires

Réponse dynamique adaptée aux variations de charge fréquentes

Construction acier robuste, peu d'inertie

Alternative au RFC quand l'amortissement maximal n'est pas requis

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Benefits

Why choose the RRJ?

The RRJ is an ideal compromise for transmissions where a rigid coupling would be too severe and a rubber flector unnecessarily complex.

01 / ADVANTAGE

Rigidity/elasticity compromise

The RRJ sits between a rigid pin coupling and a very flexible rubber flector. A good compromise for transmissions with moderate load variation.

02 / ADVANTAGE

Radial removal

Like the RFC, the RRJ pins are changed by radial removal — no need to move the motor or driven machine.

03 / ADVANTAGE

Active damping

The rubber pins absorb jolts and smooth torque peaks. Extended protection of downstream components.

Fiche Technique

Features détaillées

Technical data from the manufacturer datasheet RATHI® — RRJ coupling.

Reference table — RRJ (Flector)

Données techniques détaillées disponibles dans la fiche PDF

The complete reference table (nominal torques, bores, dimensions, speeds) is available in the manufacturer's technical PDF datasheet. Download it below or ask us for a custom summary based on your application.

Datasheet — RRJ

All sizes, dimensions, materials and torques available in the manufacturer's documentation.

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Product description

The RRJ torsionally flexible pin coupling is an intermediate coupling between rigid-pin models and high-elasticity rubber flectors. It uses rubber elastic pins that provide moderate damping while preserving good torque transmission capacity.

The pins are removed radially, without axial movement of the connected shafts. This feature simplifies maintenance on in-line installations (motor-pump assemblies, motor-reducers).

The RRJ is particularly suited to transmissions where a rigid coupling would be too severe for the components (bearings, gears) and where a very-high-elasticity rubber flector (RFC) would be oversized.

Elastic rubber pins — moderate damping capacity
Radial removal of the flector — without axial shaft movement
Adequate tolerance to parallel and angular misalignment
Dynamic response suited to frequent load variations
Robust steel construction, low inertia
Alternative to the RFC when maximum damping is not required

Technical view — RRJ