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
New
RS Stock No. 216-6563
Mfr. Part No.NMRV050 30,0 105*14 25 U MV
BrandMotovario
MYR1,276.35
Each
units
30:01:00 Worm 113 Nm 25mm 14 mm - - - - - -
RS Stock No. 336-422
Mfr. Part No.P5-G23L82
MYR196.72
Each
units
125:1 Ovoid 0.8 Nm 4mm - - 47.6mm 16.5mm 40rpm - -
New
RS Stock No. 216-6560
Mfr. Part No.NMRV050 25,0 120*19 25 U MV
BrandMotovario
MYR1,276.35
Each
units
25:01:00 Worm 92 Nm 25mm 19 mm - - - - - -
RS Stock No. 424-077
Mfr. Part No.MX9G50B
BrandPanasonic
MYR771.73
Each
units
50:1 Spur 9.8 Nm 12mm - 90mm 90mm 35mm 27rpm 40 W -
New
RS Stock No. 216-6495
Mfr. Part No.NMRV030 50,0 090*11 14 U MV
BrandMotovario
MYR844.06
Each
units
50:01:00 Worm 22 Nm 14mm 11 mm - - - - - -
New
RS Stock No. 216-6619
Mfr. Part No.NMRV-P063 7,5 105*14 25 U MV
BrandMotovario
MYR1,885.57
Each
units
7.5:01 Worm 184 Nm 25mm 14 mm - - - - - -
RS Stock No. 423-983
Mfr. Part No.MX9G3B
BrandPanasonic
MYR683.99
Each
units
3:1 Spur 0.66 Nm 12mm - 90mm 90mm 35mm 450rpm 40 W -
RS Stock No. 103-3931
Mfr. Part No.9PFK5BH
BrandDKM
MYR445.62
Each
units
5:1 - 3.99 Nm 15mm - 90mm 90mm 72mm 360rpm - -
RS Stock No. 469-0900
Mfr. Part No.110311
BrandMaxon
MYR458.66
Each
units
256:1 Planetary 0.1 Nm 2mm 10 mm 22.5mm - - - - -
RS Stock No. 103-3967
Mfr. Part No.9GBK20BH
BrandDKM
MYR302.97
Each
units
20:1 - - 12mm - 90mm 90mm - - - -
RS Stock No. 424-065
Mfr. Part No.MX8G150B
BrandPanasonic
MYR700.89
Each
units
150:1 Spur 7.84 Nm 10mm - 80mm 80mm 30mm 9rpm 25 W -
RS Stock No. 103-4028
Mfr. Part No.8GBK120BH
BrandDKM
MYR336.91
Each
units
120:1 - - 10mm - 80mm 80mm - - - -
RS Stock No. 103-4041
Mfr. Part No.6GBD100BH
BrandDKM
MYR303.44
Each
units
100:1 - - 8mm - 60mm 60mm - - - -
New
RS Stock No. 216-6628
Mfr. Part No.NMRV-P075 25,0 200*24 28 U MV
BrandMotovario
MYR2,261.00
Each
units
25:01:00 Worm 293 Nm 28mm 24 mm - - - - - -
RS Stock No. 624-4537
Mfr. Part No.MX8G100B
BrandPanasonic
MYR700.96
Each
units
100:1 Spur 7.84 Nm 10mm - 80mm 80mm 30mm 13.5rpm 25 W -
RS Stock No. 103-4029
Mfr. Part No.8GBK100BH
BrandDKM
MYR474.58
Each
units
100:1 - - 10mm - 80mm 80mm - - - -
RS Stock No. 440-543
Mfr. Part No.RG1/8.0320
MYR303.39
Each
units
320:1 Ovoid - 4mm - - 50mm - - - -
New
RS Stock No. 216-6488
Mfr. Part No.NMRV030 30,0 090*11 14 U MV
BrandMotovario
MYR844.06
Each
units
30:01:00 Worm 27 Nm 14mm 11 mm - - - - - -
New
RS Stock No. 216-6482
Mfr. Part No.NMRV030 20,0 080*09 14 U MV
BrandMotovario
MYR844.06
Each
units
20:01 Worm 23 Nm 14mm 9 mm - - - - - -
New
RS Stock No. 216-6478
Mfr. Part No.NMRV030 15,0 080*09 14 U MV
BrandMotovario
MYR844.06
Each
units
15:01 Worm 25 Nm 14mm 9 mm - - - - - -