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Series SW · Flector

Elastic Coupling SW

Jaw coupling with split straight-leg spider. Spider maintenance and replacement without disassembling the connected equipment. Guaranteed operation in degraded mode in case of element failure.

Request direct quote·01 88 32 18 85

14 tailles
De 095 à 350

21 → 10 770 Nm
Couple nominal

Ø115 mm
Alésage max.

Caoutchouc · PU · Hytrel
3 duretés étoile

Étoile fendue en anneau — changement sans démontage de l'équipement

Bague de sécurité qui maintient l'étoile en place pendant le fonctionnement

Fonctionnement en mode dégradé assuré en cas d'usure de l'étoile

Conception modulaire — moyeux non percés (SW 095–225) ou pré-percés (SW 226+)

Option entretoise (spacer) pour arbres espacés (S = 90, 100, 140, 180 mm)

Amortissement des chocs et vibrations — tolérance aux désalignements

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View datasheet Download PDF

Benefits

Why choose the SW?

The split-ring spider transforms maintenance of jaw couplings. Zero disassembly, zero unnecessary downtime.

01 / ADVANTAGE

Maintenance without disassembly

Thanks to the split spider element, inspection and replacement of the elastic element are carried out without dismantling the motor or driven shafts. Considerable time savings on hard-to-access machines.

02 / ADVANTAGE

Secure fail-safe mode

In the event of partial spider failure, the coupling continues to transmit mechanical torque via direct jaw contact. Your production line remains operational until intervention.

03 / ADVANTAGE

Modular design

Pre-bored or custom-bored cast-iron hubs, spacer option for spaced shafts, three spider materials to choose from (synthetic rubber, polyurethane, Hytrel). Tailor the coupling to your exact application.

Fiche Technique

Features détaillées

Technical data from the manufacturer datasheet RATHI® — Jaw-Flex Couplings Type SW.

Reference table — SW (Flector)

Taille SW	Couple Caoutch.	Couple PU	Couple Hytrel	Alésage max.	Ø ext. (ØA)	Longueur
SW 095	21,1 Nm	31,7 Nm	52,8 Nm	28 mm	65 mm	63 mm
SW 099	46,4 Nm	69 Nm	116 Nm	30 mm	78 mm	72 mm
SW 100	46,4 Nm	69 Nm	116 Nm	35 mm	78 mm	88 mm
SW 110	89 Nm	133 Nm	222 Nm	42 mm	96 mm	108 mm
SW 150	141 Nm	211 Nm	352 Nm	48 mm	111 mm	115 mm
SW 190	190 Nm	285 Nm	475 Nm	60 mm	129 mm	133 mm
SW 225	265 Nm	397 Nm	662 Nm	65 mm	142 mm	153 mm
SW 226	327 Nm	490 Nm	817 Nm	70 mm	153 mm	178 mm
SW 276	532 Nm	798 Nm	1 330 Nm	75 mm	173 mm	200 mm
SW 280	782 Nm	1 173 Nm	1 955 Nm	80 mm	208 mm	200 mm
SW 295	1 279 Nm	1 918 Nm	3 197 Nm	95 mm	253 mm	238 mm
SW 2955	2 132 Nm	3 198 Nm	5 330 Nm	105 mm	253 mm	264 mm
SW 300	3 047 Nm	4 570 Nm	7 617 Nm	105 mm	272 mm	283 mm
SW 350	4 308 Nm	6 462 Nm	10 770 Nm	115 mm	323 mm	309 mm

Nominal torques at 100 rpm — Spider in synthetic rubber, polyurethane (PU) or Hytrel according to constraints.

Standard bores — keyway on request, custom machining within 24h.

⚡ Complete data (Gap G, spacers, max speeds) — see PDF datasheet below

Datasheet — SW

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

PDF · 3Transmissions

View datasheet Download PDF

Product description

The SW elastic safety coupling from 3Transmissions is designed for small and medium-power mechanical transmission applications. Thanks to its straight-leg split-ring elastic spider element, it eliminates the need to disassemble connected equipment when inspecting, maintaining or changing the elastic element.

This advantage becomes major in case of machine downtime: this type of mechanical jaw coupling continues to function even in degraded mode. The split ring enables a quick change, with the spider held in place by a safety ring.

Combined with a range of pre-bored hubs, modular hub design and a spacer option, SW elastic couplings are unmatched in quality, flexibility and speed of installation and maintenance.

Split-ring spider — change without dismantling equipment
Safety ring holds the spider in place during operation
Fail-safe operation ensured in case of spider wear
Modular design — un-bored hubs (SW 095–225) or pre-bored (SW 226+)
Spacer option for spaced shafts (S = 90, 100, 140, 180 mm)
Damping of shocks and vibrations — tolerance to misalignment

Technical view — SW

Elastic Coupling SW

Why choose the SW?

Maintenance without disassembly

Secure fail-safe mode

Modular design

Features détaillées

Reference table — SW (Flector)

Datasheet — SW

Product description

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