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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รายละเอียดสินค้า / Description ราคา / Price Bore Coupling Types Outside Diameter Length Fastening Type Torque Rating Torsional Stiffness Misalignment - Angular Misalignment - Parallel Misalignment - Axial Bellows Material
RS Stock No. 808-7279
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ROTEX19-98SHEL-KTR
Brand :KTR
THB213.50
Each
Units
- Jaw Coupling - - - - - 1.2° 0.2mm -0.5 mm, +1.2mm -
RS Stock No. 862-5792
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.F70NRTYRE
Brand :SKF
THB858.70
Each
Units
- Tyre Coupling 187mm 43.5mm - 487Nm - 1.9mm 2.3mm -
RS Stock No. 748-235
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.321.12.2222
Brand :Huco
THB3,364.92
Each
Units
6mm Bellows Coupling 12mm 23mm - 79Ncm - 14° +1.6 → -2.2mm 1.72mm -
RS Stock No. 808-7080
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.OMEGA-E5-ELEMENT
Brand :Rexnord
THB8,246.32
Each
Units
- Beam Coupling 5.38in - - 105Nm - 0.063in 0.188in -
RS Stock No. 808-7345
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ROTEX38-Complete-KTR
Brand :KTR
THB4,304.03
Each
Units
38 → 48mm Jaw Coupling 80mm 114mm - - - 0.9° 0.28mm -0.7 mm, +1.8mm -
RS Stock No. 808-7096
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.OMEGA-E30-ELEMENT
Brand :Rexnord
THB16,851.09
Each
Units
- Beam Coupling 8.25in - - 412Nm - 0.031in 0.188in -
RS Stock No. 862-5821
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.F100FRTYRE
Brand :SKF
THB2,434.44
Each
Units
- Tyre Coupling 254mm 58.5mm - 1517Nm - 2.6mm 3.3mm -
RS Stock No. 845-386
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.114826
Brand :Baumer
THB5,887.86
Each
Units
10mm Beam Coupling 25mm 29.5mm - 1Nm - 0.25mm 0.4mm -
RS Stock No. 808-7250
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ROTEX14-92SHEL-KTR
Brand :KTR
THB157.50
Each
Units
- Jaw Coupling - - - - - 1.2° 0.17mm -0.5 mm, +1mm -
RS Stock No. 449-0536
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MSPC-20-20-F
Brand :Ruland
THB3,883.54
Each
Units
20mm Shaft Coupling 42mm 65mm - - - - - - -
RS Stock No. 449-0520
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MSPC-30-30-F
Brand :Ruland
THB4,924.03
Each
Units
30mm Shaft Coupling 53mm 83mm - - - - - - -
RS Stock No. 748-285
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.321.17.3232
Brand :Huco
THB3,586.69
Each
Units
10mm Bellows Coupling 17mm 27mm - 132Ncm - 18° +3 → -4mm 1.78mm -
RS Stock No. 809-0727
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.047.10.2222.RS
Brand :Huco
THB578.48
Each
Units
6mm Specialist Coupling - 27mm - 0.5Nm - 10° - 4.5mm -
RS Stock No. 808-7103
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.OMEGA-ES3-ELEMENT
Brand :Rexnord
THB9,030.75
Each
Units
- Beam Coupling 4in - - 41Nm - 0.063in 0.188in -
RS Stock No. 809-0745
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.047.20.2222.RS
Brand :Huco
THB540.98
Each
Units
6mm Specialist Coupling - 48mm - 1.8Nm - 15° - 7.5mm -
RS Stock No. 808-7389
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ROTEX48-Complete-KTR
Brand :KTR
THB7,392.69
Each
Units
48 → 62mm Jaw Coupling 105mm 140mm - - - 1.0° 0.36mm -1.00 mm, +2.1mm -
RS Stock No. 837-1085
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.L090/095NR
Brand :SKF
THB225.07
Each
Units
- Jaw Coupling 54mm - - - - 0.38mm - -
RS Stock No. 489-3727
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.13024170
Brand :Lenze
THB710.73
Each
Units
1/2in Jaw Coupling 45mm 54mm - - - 0.12mm +1.4mm -
RS Stock No. 489-3783
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.13005536
Brand :Lenze
THB132.62
Each
Units
- Jaw Coupling - - - - - 0.4mm 0.45mm -
RS Stock No. 423-1731
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MJC25-8-A
Brand :Ruland
THB568.58
Each
Units
8mm Jaw Coupling 25.4mm 11.9mm - - - - - - -