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Oldham Couplings for Medical & Lab Analysis Equipment

Ruland oldham couplings are a three-piece assembly with a balanced design comprised of two anodized aluminum or stainless steel hubs and a center disk. Oldham couplings are manufactured with a proprietary machining process for smooth interaction between the hub tenons and disk allowing for the longest service life in the industry. Oldham couplings accommodate far more parallel misalignment (up to 10% of the outer diameter) than any other servo coupling offered by Ruland.
Oldham couplings are highly versatile because of the variety of hub and insert materials available. Designers can choose between acetal, Nylon, and PEEK disks to balance torsional rigidity, torque, environmental compliance, and misalignment capabilities. Aluminum oldham couplings are lightweight, cost effective, and offer low bearing loads. These properties make them useful in stop-and-go systems or scanning applications that prioritize rigidity. Stainless steel oldham couplings can be used in corrosive and chemical washdown environments when paired with a PEEK disk. This combination is useful in a variety of medical and lab analysis systems with strict hygienic requirements. In the event of coupling failure, the center disk will act as a torque limiter by breaking cleanly and ceasing power transmission, protecting expensive machine components and ensuring that sensitive materials are not mishandled.
Bore sizes are available from 1/8” to 1-1/8” and 3mm to 30mm. Oldham coupling hubs are available in clamp and set screw styles with or without keyways, allowing designers to mix and match hubs to fit different shaft types. All oldham couplings have a balanced, zero-backlash design for reduced vibration at speeds up to 4,500 RPM. They are manufactured in our Marlborough, MA factory under strict controls using proprietary processes.

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  1. Ruland OCC21-10-A, Oldham Coupling Hub
    OCC21-10-A
    Ab 28,69 € 42,08 €
    Ruland OCC21-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, Klemme mit passfedernut, 1.313" außendurchmesserm, 0.590" länge
  2. OCC21-10-SS
    OCC21-10-SS
    Ab 70,78 € 173,66 €
    Ruland OCC21-10-SS, 5/8" Oldham Kupplungsnabe, 1.4305 (X10CrNiS189) Edelstahl, Klemme mit passfedernut, 1.313" außendurchmesserm, 0.590" länge
  3. Ruland OCC26-10-A, Oldham Coupling Hub
    OCC26-10-A
    Ab 33,50 € 49,13 €
    Ruland OCC26-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, Klemme mit passfedernut, 1.625" außendurchmesserm, 0.710" länge
  4. OCC26-10-SS
    OCC26-10-SS
    Ab 82,64 € 202,75 €
    Ruland OCC26-10-SS, 5/8" Oldham Kupplungsnabe, 1.4305 (X10CrNiS189) Edelstahl, Klemme mit passfedernut, 1.625" außendurchmesserm, 0.710" länge
  5. Ruland OCC32-10-A, Oldham Coupling Hub
    OCC32-10-A
    Ab 52,43 € 76,88 €
    Ruland OCC32-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, Klemme mit passfedernut, 2.000" außendurchmesserm, 0.820" länge
  6. Ruland OCC36-10-A, Oldham Coupling Hub
    OCC36-10-A
    Ab 66,08 € 96,92 €
    Ruland OCC36-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, Klemme mit passfedernut, 2.250" außendurchmesserm, 1.130" länge
  7. Ruland OCT21-10-A, Oldham Coupling Hub
    OCT21-10-A
    Ab 22,49 € 32,99 €
    Ruland OCT21-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, Klemme, 1.313" außendurchmesserm, 0.590" länge
  8. OCT21-10-SS
    OCT21-10-SS
    Ab 55,50 € 136,18 €
    Ruland OCT21-10-SS, 5/8" Oldham Kupplungsnabe, 1.4305 (X10CrNiS189) Edelstahl, Klemme, 1.313" außendurchmesserm, 0.590" länge
  9. Ruland OCT26-10-A, Oldham Coupling Hub
    OCT26-10-A
    Ab 26,23 € 38,46 €
    Ruland OCT26-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, Klemme, 1.625" außendurchmesserm, 0.710" länge
  10. OCT26-10-SS
    OCT26-10-SS
    Ab 64,73 € 158,81 €
    Ruland OCT26-10-SS, 5/8" Oldham Kupplungsnabe, 1.4305 (X10CrNiS189) Edelstahl, Klemme, 1.625" außendurchmesserm, 0.710" länge
  11. Ruland OCT32-10-A, Oldham Coupling Hub
    OCT32-10-A
    Ab 44,09 € 64,66 €
    Ruland OCT32-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, Klemme, 2.000" außendurchmesserm, 0.820" länge
  12. Ruland OCT36-10-A, Oldham Coupling Hub
    OCT36-10-A
    Ab 51,05 € 74,89 €
    Ruland OCT36-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, Klemme, 2.250" außendurchmesserm, 1.130" länge
  13. Ruland OSC21-10-A, Oldham Coupling Hub
    OSC21-10-A
    Ab 23,94 € 35,11 €
    Ruland OSC21-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, stellschraube mit passfedernut, 1.313" außendurchmesserm, 0.590" länge
  14. OSC21-10-SS
    OSC21-10-SS
    Ab 59,12 € 145,05 €
    Ruland OSC21-10-SS, 5/8" Oldham Kupplungsnabe, 1.4305 (X10CrNiS189) Edelstahl, stellschraube mit passfedernut, 1.313" außendurchmesserm, 0.590" länge
  15. Ruland OSC26-10-A, Oldham Coupling Hub
    OSC26-10-A
    Ab 28,78 € 42,21 €
    Ruland OSC26-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, stellschraube mit passfedernut, 1.625" außendurchmesserm, 0.710" länge
  16. OSC26-10-SS
    OSC26-10-SS
    Ab 71,01 € 174,22 €
    Ruland OSC26-10-SS, 5/8" Oldham Kupplungsnabe, 1.4305 (X10CrNiS189) Edelstahl, stellschraube mit passfedernut, 1.625" außendurchmesserm, 0.710" länge
  17. Ruland OST21-10-A, Oldham Coupling Hub
    OST21-10-A
    Ab 17,75 € 26,02 €
    Ruland OST21-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, stellschraube, 1.313" außendurchmesserm, 0.590" länge
  18. OST21-10-SS
    OST21-10-SS
    Ab 43,81 € 107,47 €
    Ruland OST21-10-SS, 5/8" Oldham Kupplungsnabe, 1.4305 (X10CrNiS189) Edelstahl, stellschraube, 1.313" außendurchmesserm, 0.590" länge
  19. Ruland OST26-10-A, Oldham Coupling Hub
    OST26-10-A
    Ab 21,50 € 31,54 €
    Ruland OST26-10-A, 5/8" Oldham Kupplungsnabe, Aluminium, stellschraube, 1.625" außendurchmesserm, 0.710" länge
  20. OST26-10-SS
    OST26-10-SS
    Ab 53,10 € 130,28 €
    Ruland OST26-10-SS, 5/8" Oldham Kupplungsnabe, 1.4305 (X10CrNiS189) Edelstahl, stellschraube, 1.625" außendurchmesserm, 0.710" länge
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