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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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庫存編號 423-1804
製造零件編號MJS19-6-A
BrandRuland
HK$113.60
單位
6mm Curved Jaw Coupling 19.1mm 27.2mm Set Screw - - - - - - - - -
RS庫存編號 808-7213
製造零件編號VIVA-VS150-ELEMENT
BrandRexnord
HK$2,897.87
單位
- Tyre Coupling 150mm - - 250Nm - - 1.6mm 6.1mm - - -
RS庫存編號 364-3155
製造零件編號PCR16-10MM-3/8”-A
BrandRuland
HK$335.54
單位
10mm Beam Coupling 25.4mm 31.8mm - - 1.8°/Nm - 0.381mm 0.254mm - - -
RS庫存編號 808-7092
製造零件編號OMEGA-E20-ELEMENT
BrandRexnord
HK$3,378.23
單位
- Tyre Coupling 7.25in - - 260Nm - - 0.031in 0.188in - - -
RS庫存編號 489-3862
製造零件編號13024175
BrandLenze
HK$387.24
單位
7/16in Straight Jaw Coupling 54mm 54mm - - - - 0.12mm +1.4mm - - -
RS庫存編號 808-7106
製造零件編號OMEGA-E40-ELEMENT
BrandRexnord
HK$3,706.67
單位
- Tyre Coupling 9.5in - - 621Nm - - 0.031in 0.188in - - -
RS庫存編號 814-433
製造零件編號PCMR13-3-3-A
BrandRuland
HK$238.87
單位
3mm Beam Coupling 12.7mm 19.1mm - 0.92Nm 6.66°/Nm - 0.203mm 0.127mm - - -
RS庫存編號 809-0727
製造零件編號047.10.2222.RS
BrandHuco
HK$134.88
單位
6mm Double Loop Elastomer - 27mm - 0.5Nm - - 10° - 4.5mm - - -
RS庫存編號 693-2417
製造零件編號536.26.2222
BrandHuco
HK$439.30
單位
6mm Bellows Coupling 26mm 37.5mm Clamping 2.43Nm 755Nm/rad 330 x 10^-8kg/m² 0.06mm 0.36mm Stainless Steel - -
RS庫存編號 477-9895
製造零件編號PCMR25-8-6-A
BrandRuland
HK$336.79
單位
- Beam Coupling 25.4mm 31.8mm - 3.73Nm 1.57°/Nm - 0.381mm 0.254mm - - -
RS庫存編號 808-7096
製造零件編號OMEGA-E30-ELEMENT
BrandRexnord
HK$4,378.48
單位
- Tyre Coupling 8.25in - - 412Nm - - 0.031in 0.188in - - -
RS庫存編號 810-0726
BrandRS PRO
HK$71.16
單位
- Gear coupling 66mm 46mm - - - - - 1mm - - - -
RS庫存編號 692-8046
製造零件編號450H13.22
BrandHuco
HK$182.93
毎包:4 個
Bag(s)
6mm Oldham (Sliding disc) 12.7mm - - - - - - - - - - -
RS庫存編號 814-607
製造零件編號PSMR19-6-6-A
BrandRuland
HK$210.61
單位
- Beam Coupling 19.1mm 22.9mm - 1.58Nm 2.9°/Nm - 0.203mm 0.127mm - - -
RS庫存編號 748-207
製造零件編號321.07.1414
BrandHuco
HK$786.73
單位
3mm Bellows Coupling 6.35mm 14mm Set Screw 41Ncm 7Nm/rad 1.3 x 10^-8kg/m² 11° 1mm 0.65mm Electrodeposited Nickel - -
RS庫存編號 748-285
製造零件編號321.17.3232
BrandHuco
HK$836.26
單位
10mm Bellows Coupling 17mm 27mm Set Screw 132Ncm 103Nm/rad 36.2 x 10^-8kg/m² 18° +3 → -4mm 1.78mm Electrodeposited Nickel - -
RS庫存編號 489-3799
製造零件編號13007045
BrandLenze
HK$76.19
單位
- Straight Jaw Coupling - - - - - - 0.4mm 0.45mm - - -
RS庫存編號 364-3082
製造零件編號PSR16-6-6-A
BrandRuland
HK$251.45
單位
3/8in Beam Coupling 1in 1.25in - 41lb/in 0.103°/lb-in - 0.015in 0.01in - - -
RS庫存編號 808-7358
製造零件編號ROTEX42-98SHEL-KTR
BrandKTR
HK$198.60
單位
- Curved Jaw Coupling - - - - - - 0.32mm -1 mm, +2 mm - - -
RS庫存編號 477-9867
製造零件編號PCMR19-6-5-A
BrandRuland
HK$287.83
單位
- Beam Coupling 19.1mm 22.9mm - 1.58Nm 2.9°/Nm - 0.203mm 0.127mm - - -