Couplings

Couplings are used to join two shafts together for the purpose of transmitting power.


Couplings can be either material flexing or mechanical flexing.


Typical uses for couplings are motor to pump, motor to gear box and motor to electric actuator.


Factors to consider unless you are replacing a like for like coupling are:


  • Horsepower of the motor

  • RPM

  • BSE (the distance between shaft ends

  • Operating temperature

  • Space available

  • Run cycle

  • Angular, parallel or axial misalignment handling

There are many different types of couplings available and many factors should be considered before deciding on a specific type.


Some of the types of couplings available:


General purpose, backlash free, flexible beam couplings feature multiple helical cuts and are machined from one piece material. They have 0.4 to 12 Nm nominal torque range and reduces wind-up compared to single beam coupling. Flexible beam couplings are used in a variety of motion-control applications, from aviation and lab equipment to robotics and medical devices. A common industrial application arises when a motor is connected to a pump. Factory automation equipment and other machine tools rely on flexible beam couplings to transmit power from a motor source.


Bellows couplings are made of a thin-walled, flexible metal corrugation (bellows) that is connected between two clamping hubs. They are designed to create a low inertia zero-backlash coupling which will last a long time without maintenance. Bellows couplings can accommodate all forms of misalignment and have a balanced design for reduced vibration at high speeds. They’re best suited for applications where precise positioning is required, such as in material handling or general automation and assembly.


Jaw couplings are used within electrical motor and internal combustion systems to transmit power (torque). They are designed to connect two shafts, enabling smooth torque transmission and reducing loss of power. Jaw couplings work by preventing shock loading (the sudden and drastic increase of load in a system) and/or accommodating shaft misalignment where this has been caused by thermal expansion or manufacturing inefficiencies.


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Nombre de résultats par page
Description Prix Bore Coupling Types Outside Diameter Length Fastening Type Torque Rating Torsional Stiffness Misalignment - Angular Misalignment - Parallel Misalignment - Axial Bellows Material
N° de stock RS 748-235
Référence fabricant321.12.2222
MarqueHuco
71,92 €
Each
Unité
6mm Bellows Coupling 12mm 23mm - 79Ncm - 14° +1.6 → -2.2mm 1.72mm -
N° de stock RS 423-1696
Référence fabricantMJC19-6-A
MarqueRuland
12,56 €
Each
Unité
6mm Jaw Coupling 19.1mm 27.2mm - - - - - - -
N° de stock RS 748-415
Référence fabricant205.41.3535
MarqueHuco
25,56 €
Each
Unité
12mm - - - - 3.5Nm - 0.25mm - -
N° de stock RS 810-0694
MarqueRS PRO
11,21 €
Each
Unité
8 → 19mm Gear Coupling 32mm - - 16Nm - 1mm - -
N° de stock RS 808-7288
Référence fabricantROTEX19-Complete-KTR
MarqueKTR
34,22 €
Each
Unité
19 → 24mm Jaw Coupling 41mm 66mm - - - 1.1° 0.2mm -0.5 mm, +1.2mm -
N° de stock RS 296-9800
Référence fabricantMCLX-6-6-F
MarqueRuland
26,09 €
Each
Unité
6mm Shaft Coupling 18mm 30mm - - - - - - -
N° de stock RS 808-7266
Référence fabricantROTEX14-Complete-KTR
MarqueKTR
24,95 €
Each
Unité
6 → 16mm Jaw Coupling 30mm 35mm - - - 1.2° 0.17mm -0.5 mm, +1.0mm -
N° de stock RS 692-8030
Référence fabricant450H13.14
MarqueHuco
13,27 €
1 Bag of 4
Sachet(s)
3mm Oldham Coupling 12.7mm - - - - - - - -
N° de stock RS 296-9822
Référence fabricantMCLX-8-8-F
MarqueRuland
29,50 €
Each
Unité
8mm Shaft Coupling 24mm 35mm - - - - - - -
N° de stock RS 748-285
Référence fabricant321.17.3232
MarqueHuco
93,50 €
Each
Unité
10mm Bellows Coupling 17mm 27mm - 132Ncm - 18° +3 → -4mm 1.78mm -
N° de stock RS 489-3834
Référence fabricant13005531
MarqueLenze
13,29 €
Each
Unité
- Jaw Coupling - - - - - 0.5° 0.4mm 0.4mm -
N° de stock RS 423-1905
Référence fabricantJD12/19-98R
MarqueRuland
4,525 €
Each (In a Pack of 2)
Unité
- Jaw Coupling 19.1mm - - - - 0.8° 0.08mm 0.51mm -
N° de stock RS 808-7323
Référence fabricantROTEX28-Complete-KTR
MarqueKTR
52,01 €
Each
Unité
28 → 38mm Jaw Coupling 66mm 90mm - - - 0.8° 0.25mm -0.7 mm, +1.5mm -
N° de stock RS 477-9873
Référence fabricantPCMR25-10-6-A
MarqueRuland
42,93 €
Each
Unité
- Beam Coupling 25.4mm 31.8mm - - - 0.381mm 0.254mm -
N° de stock RS 692-8106
Référence fabricant236.13
MarqueHuco
3,68 €
1 Bag of 10
Sachet(s)
- Oldham Coupling - - - 0.5Nm - 0.5° 0.1mm 0.05mm -
N° de stock RS 449-0362
Référence fabricantMCLX-20-20-F
MarqueRuland
28,15 €
Each
Unité
20mm Shaft Coupling 42mm 65mm - - - - - - -
N° de stock RS 814-607
Référence fabricantPSMR19-6-6-A
MarqueRuland
31,59 €
Each
Unité
- Beam Coupling 19.1mm 22.9mm - 1.58Nm - 0.203mm 0.127mm -
N° de stock RS 693-2477
Référence fabricant530.20.2222
MarqueHuco
23,89 €
Each
Unité
6mm Bellows Coupling 20mm 31mm - 2.27Nm - 0.06mm 0.35mm -
N° de stock RS 693-0815
Référence fabricant452H50.38
MarqueHuco
16,18 €
Each
Unité
14mm Oldham Coupling 50mm - - - - - - - -
N° de stock RS 810-0726
MarqueRS PRO
8,16 €
Each
Unité
- Gear Coupling 66mm 46mm - - - - 1mm - -