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
RS Stock No. 624-4537
Mfr. Part No.MX8G100B
BrandPanasonic
€129.94
Each
units
100:1 Spur 7.84 Nm 10mm - 80mm 80mm 30mm 13.5rpm 25 W -
RS Stock No. 624-4521
Mfr. Part No.MX8G20B
BrandPanasonic
€118.66
Each
units
20:1 Spur 2.55 Nm 10mm - 80mm 80mm 30mm 67.5rpm 25 W -
RS Stock No. 299-0006
Mfr. Part No.390.01.11
BrandHuco
€151.28
Each
units
1:1 T 2 Nm 8mm - 2.677in 3.189in 1.299in - - -
RS Stock No. 440-149
Mfr. Part No.110333
BrandMaxon
€78.63
Each
units
370:1 Planetary 0.375 Nm - - - - - - - -
RS Stock No. 624-4565
Mfr. Part No.MX8G50B
BrandPanasonic
€129.94
Each
units
50:1 Spur 6.73 Nm 10mm - 80mm 80mm 30mm 27rpm 25 W -
RS Stock No. 424-122
Mfr. Part No.MZ9G10XB
BrandPanasonic
€168.51
Each
units
10:1 Spur - - - 90mm 90mm 43mm - 60 W -
RS Stock No. 892-9237
Mfr. Part No.R22.10.0 111
BrandPortescap
€133.90
Each
units
111:1 Planetary 2 Nm 4mm 22 mm 54mm - - 5000 (Input)rpm - -
RS Stock No. 336-422
Mfr. Part No.P5-G23L82
€37.19
Each
units
125:1 Ovoid 0.8 Nm 4mm - - 47.6mm 16.5mm 40rpm - -
RS Stock No. 440-537
Mfr. Part No.RG1/8.0080
€60.57
Each
units
80:1 Ovoid - 4mm - - 50mm - - - -
RS Stock No. 716-323
Mfr. Part No.GM-0136
BrandParvalux
€121.17
Each
units
72:1 Worm - 12mm - - - - 40rpm - -
RS Stock No. 424-027
Mfr. Part No.MX8G180B
BrandPanasonic
€129.94
Each
units
180:1 Spur 7.84 Nm 10mm - 80mm 80mm 30mm 7.5rpm 25 W -
RS Stock No. 420-603
BrandRS PRO
€29.49
Each
units
1:1 L - 5mm - 57.3mm 30mm 57.3mm 500rpm - -
RS Stock No. 624-4515
Mfr. Part No.MX8G10B
BrandPanasonic
€110.97
Each
units
10:1 Spur 1.27 Nm 10mm - 80mm 80mm 30mm 135rpm 25 W -
RS Stock No. 441-5169
Mfr. Part No.GP32.0005
€217.40
Each
units
5.2:1 Planetary 1.12 Nm 6mm 32 mm 26.6mm - - - - -
RS Stock No. 718-868
Mfr. Part No.MRIG06 (25:2)
€103.72
Each
units
25:2 Spur 2.5 Nm - - - 56mm 41mm - - -
RS Stock No. 336-236
Mfr. Part No.RG1/8.0015
€51.96
Each
units
15:1 Ovoid - 4mm - - 50mm - - - -
RS Stock No. 892-9259
Mfr. Part No.K24.0 32
BrandPortescap
€93.29
Each
units
32:1 Spur 0.7 Nm 3mm 24 mm 28.4mm - - 5000 (Input)rpm - -
RS Stock No. 892-9243
Mfr. Part No.K24 0 5
BrandPortescap
€93.29
Each
units
5:1 Spur 0.7 Nm 3mm 24 mm 25.4mm - - 5000 (Input)rpm - -
RS Stock No. 424-184
Mfr. Part No.MX6G20BA
BrandPanasonic
€107.39
Each
units
20:1 Spur 0.66 Nm 8mm - 60mm 60mm 24.5mm 62.5rpm 6 W -
RS Stock No. 445-0229
Mfr. Part No.110316
BrandMaxon
€88.29
Each
units
275:1 Planetary 0.45 Nm 3mm 13 mm 27.6mm - - - - -