Elastic Couplings Elastic Coupling OLDHAM
Elastic Coupling OLDHAM — Oldham Coupling
Series OLDHAM · Oldham Coupling

OLDHAM Coupling

Oldham sliding-disc coupling. Compensates large parallel misalignments through transverse sliding of the central disc. Simple, robust design, ideal for transmissions with parallel-offset shafts.

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3 éléments
2 moyeux + disque
Désalignement parallèle ++
Forte compensation
Faible inertie
Disque léger
Disque PA / PEEK
Polymère technique
Conception trois éléments : 2 moyeux à mâchoires + 1 disque central coulissant
Compensation des désalignements parallèles très importants
Disque polymère (Polyamide ou PEEK) — faible inertie, faible usure
Construction simple — pas d'élastomère sensible aux UV ou aux solvants
Adapté aux machines de précision avec arbres décalés
Compatible avec environnements chimiques agressifs (option PEEK)
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Benefits

Why choose the OLDHAM?

The Oldham is the specialist of parallel misalignment — where other couplings give up.

01 / ADVANTAGE

Parallel misalignment

The Oldham coupling excels at compensating significant parallel misalignment — well beyond what a standard jaw coupling tolerates. Ideal on offset shafts.

02 / ADVANTAGE

Simple design

Three parts: two jaw hubs and a sliding central disk. No elastomer sensitive to UV, temperature or solvents. Simplified maintenance and spare-parts stock.

03 / ADVANTAGE

Precision & inertia

The polymer disk is light and offers excellent angular precision. Suited to precision machines (encoders, sensors, microscopes) where shafts are not perfectly aligned.

Fiche Technique

Features détaillées

Manufacturer technical data — Oldham coupling.

Reference table — OLDHAM (Oldham coupling)

Taille Couple Nominal Rigidité Tors. Masse Décal. Axial Max Décal. Latéral Max Ø Encombrement
KSB-50,50 Nm0,033 ×10³ Nm/rad14 g0,10 mm0,20 mm21,0 mm
KSB-10——————
KSB-181,80 Nm0,091 ×10³ Nm/rad40 g0,10 mm0,30 mm—

KSB Oldham coupling (clamping hub) / KSD (clamping + expansion hub) — manufacturer HA-CO.

Données identiques pour les versions KSB et KSD.

⚡ Pour cotes secondaires et tolérances : voir fiche PDF complète ci-dessous

Datasheet — OLDHAM

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

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Product description

The Oldham flexible coupling compensates significant parallel misalignment via a sliding central disk. The design consists of three parts: two jaw hubs and a central polymer disk that slides transversely between the two jaws.

This system offers compensation of parallel misalignment far superior to that of classic jaw couplings (elastomer spider). It is particularly suited to transmissions where shafts cannot be perfectly aligned: precision machines, microscopes, encoders on offset axes.

The central disk is usually made of polyamide (PA) or PEEK for aggressive chemical environments. The absence of elastomer avoids ageing problems related to UV, temperature or solvents.

  • Three-element design: 2 jaw hubs + 1 sliding central disk
  • Compensation of very significant parallel misalignment
  • Polymer disk (Polyamide or PEEK) — low inertia, low wear
  • Simple construction — no elastomer sensitive to UV or solvents
  • Suited to precision machines with offset shafts
  • Compatible with aggressive chemical environments (PEEK option)
Technical drawing — OLDHAM
Technical view — OLDHAM

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