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. 336-438
Mfr. Part No.P5-G17L82
€34.69
Each
units
50:1 Ovoid 0.8 Nm 4mm - - 47.6mm 16.5mm 100rpm - -
RS Stock No. 336-416
Mfr. Part No.P5-G27L82
€34.17
Each
units
250:1 Ovoid 0.8 Nm 4mm - - 47.6mm 16.5mm 20rpm - -
RS Stock No. 332-868
Mfr. Part No.P5-G01L82
€31.51
Each
units
25:6 Ovoid 0.2 Nm 4mm - - 47.6mm 16.5mm 1200rpm - -
RS Stock No. 363-6315
Mfr. Part No.IP57-M1-10
€274.82
Each
units
10:1 Planetary 12 Nm 12.69mm 57 mm 67.75mm - - - - -
RS Stock No. 363-6359
Mfr. Part No.IP57-M2-100
€371.23
Each
units
100:1 Planetary 24 Nm 12.69mm 57 mm 79.75mm - - - - -
RS Stock No. 336-400
Mfr. Part No.P5-G62L82
€46.28
Each
units
15000:1 Ovoid 1 Nm 4mm - - 47.6mm 16.5mm 1rph - -
RS Stock No. 336-444
Mfr. Part No.P5-G11L82
€34.69
Each
units
25:1 Ovoid 0.7 Nm 4mm - - 47.6mm 16.5mm 200rpm - -
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. 336-450
Mfr. Part No.P5-G06L82
€38.54
Each
units
25:2 Ovoid 0.45 Nm 4mm - - 47.6mm 16.5mm 400rpm - -
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. 363-6309
Mfr. Part No.IP57-M1-5
€254.48
Each
units
5:1 Planetary 12 Nm 12.69mm 57 mm 54mm - - - - -
RS Stock No. 877-7196
Mfr. Part No.2038-6:1
€86.00
Each
units
6:1 Spur 0.2 Nm 6mm 38 mm 44.3mm - - - - -
RS Stock No. 877-7199
Mfr. Part No.2038-30:1
€50.45
Each
units
30:1 Spur 0.3 Nm 6mm 38 mm 47.1mm - - - - -
RS Stock No. 363-6337
Mfr. Part No.IP57-M2-25
€360.74
Each
units
25:1 Planetary 24 Nm 12.69mm 57 mm 66mm - - - - -
RS Stock No. 363-6343
Mfr. Part No.IP57-M2-50
€374.46
Each
units
50:1 Planetary 24 Nm 12.69mm 57 mm 79.75mm - - - - -
RS Stock No. 718-896
Mfr. Part No.MRIG22 (100:1)
€164.08
Each
units
100:1 Spur 4 Nm - - - 56mm 41mm - - -
RS Stock No. 718-874
Mfr. Part No.MRIG11 (25:1)
€126.89
Each
units
25:1 Spur 4 Nm - - - 56mm 41mm - - -
RS Stock No. 877-7193
Mfr. Part No.2038-105:1
€83.13
Each
units
100:1 Spur 0.5 Nm 6mm 38 mm 50mm - - - - -
RS Stock No. 718-852
Mfr. Part No.MRIG02 (5:1)
€104.66
Each
units
5:1 Spur 1.5 Nm - - - 56mm 41mm - - -
RS Stock No. 718-880
Mfr. Part No.MRIG17 (50:1)
€138.79
Each
units
50:1 Spur 4 Nm - - - 56mm 41mm - - -