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.


...
Read more Read less

Filters

Viewing 81 - 100 of 847 products
Results per page
Description Price Bore Coupling Types Outside Diameter Length Fastening Type Torque Rating Torsional Stiffness Misalignment - Angular Misalignment - Parallel Misalignment - Axial Bellows Material
RS Stock No. 229-504
Mfr. Part No.470.26.2222
BrandHuco
$95.16
Each
units
6mm Specialist Coupling 25.6mm 36.1mm - - - - - - -
RS Stock No. 701-9146
Mfr. Part No.MJC41-16-A
BrandRuland
$50.59
Each
units
16mm Jaw Coupling 41.3mm 53mm - - - - - - -
RS Stock No. 477-9801
Mfr. Part No.FCMR25-6-6-A
BrandRuland
$74.53
Each
units
- Beam Coupling 25.4mm 38.1mm - 3.95Nm - 0.381mm 0.254mm -
RS Stock No. 809-0736
Mfr. Part No.047.10.2828.RS
BrandHuco
$34.26
Each
units
8mm Specialist Coupling - 27mm - 0.5Nm - 10° - 4.5mm -
RS Stock No. 693-0777
Mfr. Part No.453H19.22
BrandHuco
$14.92
Each
units
6mm Oldham Coupling 19.1mm - - - - - - - -
RS Stock No. 183-192
BrandRS PRO
$29.97
Each
units
28mm Jaw Coupling - 29mm - - - - - - -
RS Stock No. 748-370
Mfr. Part No.207.27.3132
BrandHuco
$42.55
Each
units
3/8in, 10 mm - - - - 1.7Nm - 0.2mm - -
RS Stock No. 814-499
Mfr. Part No.PCMR25-6-6-A
BrandRuland
$85.41
Each
units
- Beam Coupling 25.4mm 31.8mm - 4.07Nm - 0.381mm 0.254mm -
RS Stock No. 296-9838
Mfr. Part No.MCLX-10-10-F
BrandRuland
$49.45
Each
units
10mm Shaft Coupling 29mm 45mm - - - - - - -
RS Stock No. 229-497
Mfr. Part No.466.26.2424
BrandHuco
$93.55
Each
units
1/4in Specialist Coupling 25.6mm 28.4mm - - - - - - -
RS Stock No. 808-7080
Mfr. Part No.OMEGA-E5-ELEMENT
BrandRexnord
$400.07
Each
units
- Beam Coupling 5.38in - - 105Nm - 0.063in 0.188in -
RS Stock No. 693-2436
Mfr. Part No.536.34.3232
BrandHuco
$105.97
Each
units
10mm Bellows Coupling 34mm 40mm - 2.43Nm - 2.5° 0.1mm 0.6mm -
RS Stock No. 808-7115
Mfr. Part No.OMEGA-ES5-ELEMENT
BrandRexnord
$633.81
Each
units
- Beam Coupling 5.38in - - 105Nm - 0.063in 0.25in -
RS Stock No. 808-7367
Mfr. Part No.ROTEX42-Complete-KTR
BrandKTR
$296.18
Each
units
42 → 55mm Jaw Coupling 95mm 126mm - - - 0.9° 0.32mm -1.00 mm, +2.00mm -
RS Stock No. 814-455
Mfr. Part No.PCMR13-5-4-A
BrandRuland
$62.35
Each
units
5mm Beam Coupling 12.7mm 19.1mm - - - 0.203mm 0.127mm -
RS Stock No. 296-9872
Mfr. Part No.MCLX-14-14-F
BrandRuland
$55.01
Each
units
14mm Shaft Coupling 34mm 50mm - - - - - - -
RS Stock No. 809-0742
Mfr. Part No.047.20.1818.RS
BrandHuco
$28.34
Each
units
4mm Double Loop Elastomer - 48mm - 1.8Nm - - - - -
RS Stock No. 837-1079
Mfr. Part No.L050NR
BrandSKF
$4.61
Each
units
- Jaw Coupling 27.5mm - - - - 0.38mm - -
RS Stock No. 814-528
Mfr. Part No.FCMR32-10-10-A
BrandRuland
$133.95
Each
units
- Beam Coupling 31.75mm 44.45mm - 6.89Nm - 0.381mm 0.254mm -
RS Stock No. 423-1696
Mfr. Part No.MJC19-6-A
BrandRuland
$24.26
Each
units
6mm Jaw Coupling 19.1mm 27.2mm - - - - - - -