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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Beskrivning Pris Bore Coupling Types Outside Diameter Length Fastening Type Torque Rating Torsional Stiffness Misalignment - Angular Misalignment - Parallel Misalignment - Axial Bellows Material
RS-artikelnummer 423-2194
Tillv. art.nrJD21/33-98R
VarumärkeRuland
54,585 kr
Each (In a Pack of 2)
Enheter
- Jaw Coupling 33.3mm - - - - 0.8° 0.08mm 0.76mm -
RS-artikelnummer 423-1775
Tillv. art.nrMJC33-12-A
VarumärkeRuland
185,87 kr
Each
Enheter
12mm Jaw Coupling 33.3mm 44.5mm - - - - - - -
RS-artikelnummer 423-1703
Tillv. art.nrMJC19-8-A
VarumärkeRuland
127,86 kr
Each
Enheter
8mm Jaw Coupling 19.1mm 27.2mm - - - - - - -
RS-artikelnummer 423-1769
Tillv. art.nrMJC33-10-A
VarumärkeRuland
184,38 kr
Each
Enheter
10mm Jaw Coupling 33.3mm 44.5mm - - - - - - -
RS-artikelnummer 296-9838
Tillv. art.nrMCLX-10-10-F
VarumärkeRuland
359,27 kr
Each
Enheter
10mm Shaft Coupling 29mm 45mm - - - - - - -
RS-artikelnummer 693-2477
Tillv. art.nr530.20.2222
VarumärkeHuco
254,76 kr
Each
Enheter
6mm Bellows Coupling 20mm 31mm - 2.27Nm - 0.06mm 0.35mm -
RS-artikelnummer 808-7323
Tillv. art.nrROTEX28-Complete-KTR
VarumärkeKTR
554,63 kr
Each
Enheter
28 → 38mm Jaw Coupling 66mm 90mm - - - 0.8° 0.25mm -0.7 mm, +1.5mm -
RS-artikelnummer 296-9894
Tillv. art.nrMCLX-15-15-F
VarumärkeRuland
387,42 kr
Each
Enheter
15mm Shaft Coupling 34mm 50mm - - - - - - -
RS-artikelnummer 808-7301
Tillv. art.nrROTEX24-Complete-KTR
VarumärkeKTR
393,50 kr
Each
Enheter
22 → 28mm Jaw Coupling 56mm 78mm - - - 0.8° 0.22mm -0.5 mm, +1.4mm -
RS-artikelnummer 809-0727
Tillv. art.nr047.10.2222.RS
VarumärkeHuco
147,16 kr
Each
Enheter
6mm Specialist Coupling - 27mm - 0.5Nm - 10° - 4.5mm -
RS-artikelnummer 869-1705
Tillv. art.nrBOWEXM24-SLEEVE-PB
VarumärkeKTR
76,72 kr
Each
Enheter
- Gear Coupling 53mm 41mm - - - - - - -
RS-artikelnummer 693-2414
Tillv. art.nr537.20.2222
VarumärkeHuco
265,85 kr
Each
Enheter
6mm Bellows Coupling 20mm 31mm - 2.33Nm - 0.06mm 0.35mm -
RS-artikelnummer 869-1714
Tillv. art.nrBOWEXM28-COMPLETE
VarumärkeKTR
659,83 kr
Each
Enheter
28mm Gear Coupling 44mm - - 135Nm - 0.6° 0.23mm - -
RS-artikelnummer 423-1898
Tillv. art.nrJD12/19-92Y
VarumärkeRuland
45,375 kr
Each (In a Pack of 2)
Enheter
- Jaw Coupling 19.1mm - - - - 0.9° 0.1mm 0.51mm -
RS-artikelnummer 814-629
Tillv. art.nrPSMR25-8-8-A
VarumärkeRuland
331,33 kr
Each
Enheter
- Beam Coupling 25.4mm 31.8mm - 3.73Nm - 0.381mm 0.254mm -
RS-artikelnummer 810-0707
VarumärkeRS PRO
196,97 kr
Each
Enheter
10 → 28mm Gear Coupling 44mm - - 45Nm - 1mm - -
RS-artikelnummer 701-9137
Tillv. art.nrMJC41-14-A
VarumärkeRuland
277,37 kr
Each
Enheter
14mm Jaw Coupling 41.3mm 53mm - - - - - - -
RS-artikelnummer 810-0694
VarumärkeRS PRO
107,90 kr
Each
Enheter
8 → 19mm Gear Coupling 32mm - - 16Nm - 1mm - -
RS-artikelnummer 808-7266
Tillv. art.nrROTEX14-Complete-KTR
VarumärkeKTR
266,07 kr
Each
Enheter
6 → 16mm Jaw Coupling 30mm 35mm - - - 1.2° 0.17mm -0.5 mm, +1.0mm -
RS-artikelnummer 489-3761
Tillv. art.nr13005523
VarumärkeLenze
27,73 kr
Each
Enheter
- Jaw Coupling - - - - - 0.4mm 0.45mm -