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 Moment of Inertia Misalignment - Angular Misalignment - Parallel Misalignment - Axial Bellows Material Shore Hardness Suitable For Use With
RS Stock No. 449-0536
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MSPC-20-20-F
Brand :Ruland
THB3,695.58
Each
Units
20mm Rigid Coupling 42mm 65mm - - - - - - - - - -
RS Stock No. 449-0520
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MSPC-30-30-F
Brand :Ruland
THB5,471.14
Each
Units
30mm Rigid Coupling 53mm 83mm - - - - - - - - - -
RS Stock No. 814-607
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PSMR19-6-6-A
Brand :Ruland
THB914.33
Each
Units
- Beam Coupling 19.1mm 22.9mm - 1.58Nm 2.9°/Nm - 0.203mm 0.127mm - - -
RS Stock No. 423-1731
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MJC25-8-A
Brand :Ruland
THB631.76
Each
Units
8mm Curved Jaw Coupling 25.4mm 11.9mm Clamp - - - - - - - - -
RS Stock No. 296-9838
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCLX-10-10-F
Brand :Ruland
THB807.24
Each
Units
10mm Rigid Coupling 29mm 45mm - - - - - - - - - -
RS Stock No. 364-3149
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PCR16-6-6-A
Brand :Ruland
THB1,342.72
Each
Units
- Beam Coupling 1in 1.25in - 41lb/in 0.103°/lb-in - 0.015in 0.01in - - -
RS Stock No. 435-1166
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCLX-6-6-A
Brand :Ruland
THB1,098.72
Each
Units
6mm Rigid Coupling 18mm 30mm - - - - - - - - - -
RS Stock No. 296-9800
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCLX-6-6-F
Brand :Ruland
THB628.03
Each
Units
6mm Rigid Coupling 18mm 30mm - - - - - - - - - -
RS Stock No. 814-629
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PSMR25-8-8-A
Brand :Ruland
THB1,044.56
Each
Units
- Beam Coupling 25.4mm 31.8mm - 3.73Nm 1.57°/Nm - 0.381mm 0.254mm - - -
RS Stock No. 449-0485
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MSPC-12-12-F
Brand :Ruland
THB2,271.14
Each
Units
12mm Rigid Coupling 29mm 45mm - - - - - - - - - -
RS Stock No. 477-9902
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCLX-6-6-SS
Brand :Ruland
THB1,588.56
Each
Units
6mm Rigid Coupling 18mm 30mm - - - - - - - - - -
RS Stock No. 814-512
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PCMR25-10-10-A
Brand :Ruland
THB1,369.44
Each
Units
- Beam Coupling 25.4mm 31.8mm - - 1.57°/Nm - 0.381mm 0.254mm - - -
RS Stock No. 325-8072
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MWC20-5-5-SS
Brand :Ruland
THB2,261.06
Each
Units
- Beam Coupling 20mm 20mm - 1.3Nm 2.01°/Nm - 0.2mm 0.12mm - - -
RS Stock No. 325-8218
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MWS20-5-5-SS
Brand :Ruland
THB1,802.81
Each
Units
- Beam Coupling 20mm 20mm - 1.3Nm 2.01°/Nm - 0.2mm 0.12mm - - -
RS Stock No. 325-8252
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MWS25-10-10-SS
Brand :Ruland
THB2,019.38
Each
Units
- Beam Coupling 25mm 24mm - 3.1Nm 1.75°/Nm - 0.38mm 0.25mm - - -
RS Stock No. 423-1898
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.JD12/19-92Y
Brand :Ruland
THB180.83
Each: (In a Pack of 2)
Units
- Curved Jaw Coupling 19.1mm - - - - - 0.9° 0.1mm 0.51mm - 92Shore A 19 mm Hubs
RS Stock No. 325-8123
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MWC30-10-10-SS
Brand :Ruland
THB3,506.73
Each
Units
- Beam Coupling 30mm 38mm - 6.9Nm 0.71°/Nm - 0.38mm 0.25mm - - -
RS Stock No. 449-0542
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MSPC-40-40-F
Brand :Ruland
THB8,540.22
Each
Units
40mm Rigid Coupling 77mm 108mm - - - - - - - - - -
RS Stock No. 814-613
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PSMR25-6-6-A
Brand :Ruland
THB994.82
Each
Units
- Beam Coupling 25.4mm 31.8mm - 4.07Nm 1.41°/Nm - 0.381mm 0.254mm - - -
RS Stock No. 325-8173
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MWS15-3-3-SS
Brand :Ruland
THB1,799.60
Each
Units
- Beam Coupling 15mm 20mm - 0.85Nm 4.44°/Nm - 0.2mm 0.12mm - - -