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 775 products
Results per page
Description Price Bore Coupling Types Outside Diameter Length Fastening Type Torque Rating Torsional Stiffness Moment of Inertia Misalignment - Angular Misalignment - Parallel Misalignment - Axial Bellows Material Shore Hardness Suitable For Use With
RS Stock No. 410-6506
Mfr. Part No.RS3520033
BrandHengstler
MYR68.57
Each
units
5mm - 25mm 32mm - 80Ncm - - ±4° ±0.25mm ±0.4mm - - -
RS Stock No. 489-3834
Mfr. Part No.13005531
BrandLenze
MYR66.77
Each
units
- Straight Jaw Coupling - - - - - - 0.5° 0.4mm 0.4mm - - -
RS Stock No. 862-5859
Mfr. Part No.F120FTBFLG
BrandSKF
MYR977.93
Each
units
- Tyre Coupling 314mm 79.5mm - 3547Nm 296Nm/rad - 3.2mm 4mm - - -
RS Stock No. 808-7260
Mfr. Part No.ROTEX19-92SHEL-KTR
BrandKTR
MYR25.69
Each
units
- Curved Jaw Coupling - - - - - - 1.2° 0.2mm -0.5 mm, +1.2 mm - - -
RS Stock No. 693-2473
Mfr. Part No.530.20.2020
BrandHuco
MYR166.02
Each
units
5mm Bellows Coupling 20mm 31mm Set Screw 2.27Nm 315Nm/rad 90 x 10^-8kg/m² 0.06mm 0.35mm Stainless Steel - -
RS Stock No. 693-0786
Mfr. Part No.452H25.28
BrandHuco
MYR50.69
Each
units
8mm Oldham (Sliding disc) 25.4mm - - - - - - - - - - -
RS Stock No. 693-0865
Mfr. Part No.852.25.22
BrandHuco
MYR88.31
Each
units
6mm Oldham (Sliding disc) 25.4mm - - - - - - - - - - -
RS Stock No. 325-8066
Mfr. Part No.MWC20-6-6-SS
BrandRuland
MYR317.24
Each
units
- Beam Coupling 20mm 28mm - 1.15Nm 2.48°/Nm - 0.2mm 0.12mm - - -
RS Stock No. 693-0770
Mfr. Part No.453H19.24
BrandHuco
MYR36.62
Each
units
6.35mm Oldham (Sliding disc) 19.1mm - - - - - - - - - - -
RS Stock No. 693-0783
Mfr. Part No.452H25.24
BrandHuco
MYR50.69
Each
units
6.35mm Oldham (Sliding disc) 25.4mm - - - - - - - - - - -
RS Stock No. 229-447
Mfr. Part No.470.19.1414
BrandHuco
MYR153.62
Each
units
3 x 3mm Disc (Membrane) 19.2mm 34.5mm - - - 60 x 10^-8kg/m² - - - Aluminium - -
RS Stock No. 693-0774
Mfr. Part No.452H25.22
BrandHuco
MYR50.69
Each
units
6mm Oldham (Sliding disc) 25.4mm - - - - - - - - - - -
RS Stock No. 701-9152
Mfr. Part No.JD16/25-85B
BrandRuland
MYR47.855
Each (In a Pack of 2)
units
- Curved Jaw Coupling 25.4mm - - - - - 0.15mm 0.76mm - - -
RS Stock No. 748-415
Mfr. Part No.205.41.3535
BrandHuco
MYR155.22
Each
units
12mm - - - - 3.5Nm - - 0.25mm - - - -
RS Stock No. 423-1680
Mfr. Part No.MJC19-5-A
BrandRuland
MYR75.04
Each
units
5mm Curved Jaw Coupling 19.1mm 27.2mm Clamp - - - - - - - - -
RS Stock No. 748-263
Mfr. Part No.321.17.3131
BrandHuco
MYR609.53
Each
units
9.525mm Bellows Coupling 17mm 27mm Set Screw 132Ncm 103Nm/rad 36.2 x 10^-8kg/m² 18° +3 → -4mm 1.78mm Electrodeposited Nickel - -
RS Stock No. 748-364
Mfr. Part No.207.27.3232
BrandHuco
MYR124.27
Each
units
10mm - - - - 1.7Nm - - 0.2mm - - - -
RS Stock No. 808-7232
Mfr. Part No.VIVA-V110-HUB-T/L
BrandRexnord
MYR308.57
Each
units
28 → 38mm Tyre Coupling 110mm - - 62Nm - - - - - - - -
RS Stock No. 693-0869
Mfr. Part No.852.25.24
BrandHuco
MYR89.24
Each
units
6.35mm Oldham (Sliding disc) 25.4mm - - - - - - - - - - -
RS Stock No. 423-1911
Mfr. Part No.JD16/25-92Y
BrandRuland
MYR28.515
Each (In a Pack of 2)
units
- Curved Jaw Coupling 25.4mm - - - - - 0.9° 0.1mm 0.51mm - 92Shore A 25 mm Hubs
Related Products
Beam couplings will readily accommodate any combination of ...
Description:
Beam couplings will readily accommodate any combination of axial motion, angular and parallel misalignment. The 3 start helical-cut design provides higher torque capability and reduced wind-up compared with single beam versions. Multi-Beam is available in three standard materials: stainless steel, ...
The Huco coupling has a 32mm OD. This ...
Description:
The Huco coupling has a 32mm OD. This is multi-beam type 3, stainless steel clamp 12mm x 12mm coupling. This is readily accommodated by any combination of axial motion, angular and parallel misalignment. Its 3 start helical cut design provides ...
Ruland MJC51-14-A is a zero-backlash jaw coupling hub ...
Description:
Ruland MJC51-14-A is a zero-backlash jaw coupling hub with a 14mm bore, 50.8mm OD, and 20.8mm length. It is a component in a three-piece design consisting of two aluminum hubs and an elastomeric insert called the spider creating a lightweight ...
The Ruland jaw coupling hub has a 57mm ...
Description:
The Ruland jaw coupling hub has a 57mm OD, 32mm bore and 28.7mm length with clamp fastening. This is readily accommodated by any combination of axial motion, angular and parallel misalignment. It comprises of a three-piece design consisting of two ...