Gearboxes

Gearboxes, also referred to as gearheads or gear reducers, are enclosed systems consisting of a series of integrated gears within a housing unit. Gearboxes are designed to transmit mechanical energy to operate and alter the torque and speed of a driving device, such as an electric motor. At RS Components, we have a variety of industrial gearboxes, including planetary, spur, and ovoid models from leading industry brands, including DKM, Maxon, Panasonic, Portescap, Trident Engineering and out own RS PRO brand.

How does a gearbox work?

Inside a gearbox, there is one of several different types of gears that can be found - these include bevel gears, worm gears, helical gears, spur gears, and planetary gears. These gears are mounted on to shafts and rotate on rolling element bearings.

What type of gearboxes are there?

The most common types of gearboxes are spur and planetary.

  • Spur gearboxes have straight teeth and are mounted on parallel shafts. Spur gearboxes offer a high power transmission efficiency, a constant velocity ratio and have no slip.
  • Planetary gearboxes have the input shaft and output shaft aligned. They are particularly suited to high torque and low-speed applications.

How is the gear ratio defined?

The gear ratio is defined through the number of turns the output shaft will makes when the input shaft is turned once. When the gear ratio is 1:1, the torque and speed are the same. If the ratio is increased to 1:4, the torque is reduced and the maximum speed is significantly increased. If this is reversed to a ratio of 4:1, then the speed is reduced and the torque is increased.

What are gearboxes used for?

Gearboxes are used in various applications depending on the type and gear ratio. This includes machine tools, conveyor systems and elevators, as well as industrial equipment and mining industry applications. Right angle gearboxes can be utilized in rotary tables.


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Description Price Gear Ratio Gearbox Type Maximum Output Torque Shaft Diameter Diameter Overall Length Overall Width Overall Depth Maximum Speed Power Rating Continuous Output Speed Priced to Clear
RS Stock No. 424-134
Mfr. Part No.MX9G15B
BrandPanasonic
£97.52
Each
Units
15:1 Spur 3.23 Nm 12mm - 90mm 90mm 35mm 90rpm 40 W - -
RS Stock No. 440-149
Mfr. Part No.110333
BrandMaxon
£76.96
Each
Units
370:1 Planetary 0.375 Nm - - - - - - - - -
RS Stock No. 336-438
Mfr. Part No.P5-G17L82
£26.68
Each
Units
50:1 Ovoid 0.8 Nm 4mm - - 47.6mm 16.5mm 100rpm - - -
RS Stock No. 363-6337
Mfr. Part No.IP57-M2-25
£277.49
Each
Units
25:1 Planetary 24 Nm 12.69mm 57 mm 66mm - - - - - -
RS Stock No. 363-6309
Mfr. Part No.IP57-M1-5
£214.11
Each
Units
5:1 Planetary 12 Nm 12.69mm 57 mm 54mm - - - - - -
RS Stock No. 624-4593
Mfr. Part No.MZ9G10B
BrandPanasonic
£166.23
Each
Units
10:1 Spur 4.51 Nm 15mm - 90mm 90mm 43mm 137.5rpm 60 W - -
RS Stock No. 423-933
Mfr. Part No.MY9G15B
BrandPanasonic
£166.23
Each
Units
15:1 Spur 6.76 Nm 15mm - 90mm 90mm 43mm 91.66rpm 60 W - -
RS Stock No. 423-939
Mfr. Part No.MY9G50B
BrandPanasonic
£175.61
Each
Units
50:1 Spur 19.6 Nm 15mm - 90mm 90mm 43mm 27.5rpm 60 W - -
RS Stock No. 424-037
Mfr. Part No.MX9G100B
BrandPanasonic
£110.04
Each
Units
100:1 Spur 9.8 Nm 12mm - 90mm 90mm 35mm 13.5rpm 40 W - -
RS Stock No. 423-955
Mfr. Part No.MY9G120B
BrandPanasonic
£182.23
Each
Units
120:1 Spur 19.6 Nm 15mm - 90mm 90mm 43mm 11.45rpm 60 W - -
RS Stock No. 424-188
Mfr. Part No.MX6G15BA
BrandPanasonic
£76.35
Each
Units
15:1 Spur 0.49 Nm 8mm - 60mm 60mm 24.5mm 83.3rpm 6 W - -
RS Stock No. 441-5103
Mfr. Part No.GS38.0030
£52.86
Each
Units
30:1 Spur 0.7 Nm 6mm - 38mm 38mm 18.5mm - - - -
RS Stock No. 441-5131
Mfr. Part No.GS38.0200
£62.29
Each
Units
200:1 Spur 1.8 Nm 6mm - 38mm 38mm 23.5mm - - - -
RS Stock No. 440-537
Mfr. Part No.RG1/8.0080
£46.58
Each
Units
80:1 Ovoid - 4mm - - 50mm - - - - -
RS Stock No. 336-400
Mfr. Part No.P5-G62L82
£35.60
Each
Units
15000:1 Ovoid 1 Nm 4mm - - 47.6mm 16.5mm 1rph - - -
RS Stock No. 299-0006
Mfr. Part No.390.01.11
BrandHuco
£116.37
Each
Units
1:1 T 2 Nm 8mm - 2.677in 3.189in 1.299in - - - -
RS Stock No. 718-852
Mfr. Part No.MRIG02 (5:1)
£88.06
Each
Units
5:1 Spur 1.5 Nm - - - 56mm 41mm - - - -
RS Stock No. 424-071
Mfr. Part No.MX9G20B
BrandPanasonic
£103.43
Each
Units
20:1 Spur 4.51 Nm 12mm - 90mm 90mm 35mm 67.5rpm 40 W - -
RS Stock No. 441-5096
Mfr. Part No.GS38.0018
£50.02
Each
Units
18:1 Spur 0.6 Nm 6mm - 38mm 38mm 18.5mm - - - -
RS Stock No. 718-868
Mfr. Part No.MRIG06 (25:2)
£87.26
Each
Units
25:2 Spur 2.5 Nm - - - 56mm 41mm - - - -