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. 892-9249
Mfr. Part No.R22.10.0 641
BrandPortescap
MYR869.14
Each
units
641:1 Planetary 2 Nm 4mm 22 mm 54mm - - 5000 (Input)rpm - -
RS Stock No. 892-9271
Mfr. Part No.R32.0 416
BrandPortescap
MYR2,441.77
Each
units
416:1 Planetary 20 Nm 8mm 32 mm 70.5mm - - 6000 (Input)rpm - -
RS Stock No. 469-0916
Mfr. Part No.110312
BrandMaxon
MYR508.03
Each
units
1024:1 Planetary 0.1 Nm 2mm 10 mm 26.6mm - - - - -
RS Stock No. 424-071
Mfr. Part No.MX9G20B
BrandPanasonic
MYR725.37
Each
units
20:1 Spur 4.51 Nm 12mm - 90mm 90mm 35mm 67.5rpm 40 W -
RS Stock No. 892-9211
Mfr. Part No.R16.0 5.5
BrandPortescap
MYR364.98
Each
units
5.5:1 Planetary 1 Nm 3mm 16 mm 26mm - - 7500 (Input)rpm - -
RS Stock No. 336-400
Mfr. Part No.P5-G62L82
MYR244.76
Each
units
15000:1 Ovoid 1 Nm 4mm - - 47.6mm 16.5mm 1rph - -
RS Stock No. 420-5041
Mfr. Part No.203116
BrandMaxon
MYR1,812.48
Each
units
15:1 Planetary 11.3 Nm 12mm 42 mm 55.5mm - - - - -
New
RS Stock No. 216-6583
Mfr. Part No.NMRV050 7,5 120*19 25 U MV
BrandMotovario
MYR1,276.35
Each
units
7.5:01 Worm 112 Nm 25mm 19 mm - - - - - -
New
RS Stock No. 216-6585
Mfr. Part No.NMRV050 7,5 160*14 25 U MV
BrandMotovario
MYR1,276.35
Each
units
7.5:01 Worm 112 Nm 25mm 14 mm - - - - - -
New
RS Stock No. 216-6587
Mfr. Part No.NMRV050 80,0 105*14 25 U MV
BrandMotovario
MYR1,276.35
Each
units
80:01:00 Worm 75 Nm 25mm 14 mm - - - - - -
New
RS Stock No. 216-6520
Mfr. Part No.NMRV040 25,0 160*14 18 U MV
BrandMotovario
MYR976.22
Each
units
25:01:00 Worm 51 Nm 18mm 14 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 -
New
RS Stock No. 216-6646
Mfr. Part No.NMRV-P090 60,0 200*24 35 B3 MV
BrandMotovario
MYR2,700.67
Each
units
60:01:00 Worm 528 Nm 35mm 24 mm - - - - - -
New
RS Stock No. 216-6597
Mfr. Part No.NMRV-P063 15,0 140*24 25 U MV
BrandMotovario
MYR1,885.57
Each
units
15:01 Worm 200 Nm 25mm 24 mm - - - - - -
RS Stock No. 103-4028
Mfr. Part No.8GBK120BH
BrandDKM
MYR336.91
Each
units
120:1 - - 10mm - 80mm 80mm - - - -
RS Stock No. 892-9243
Mfr. Part No.K24 0 5
BrandPortescap
MYR493.38
Each
units
5:1 Spur 0.7 Nm 3mm 24 mm 25.4mm - - 5000 (Input)rpm - -
New
RS Stock No. 216-6532
Mfr. Part No.NMRV040 50,0 090*11 18 U MV
BrandMotovario
MYR976.22
Each
units
50:01:00 Worm 53 Nm 18mm 11 mm - - - - - -
New
RS Stock No. 216-6598
Mfr. Part No.NMRV-P063 15,0 200*19 25 U MV
BrandMotovario
MYR1,885.57
Each
units
15:01 Worm 200 Nm 25mm 19 mm - - - - - -
New
RS Stock No. 216-6590
Mfr. Part No.NMRV-P063 10,0 120*19 25 U MV
BrandMotovario
MYR1,885.57
Each
units
10:01 Worm 185 Nm 25mm 19 mm - - - - - -
RS Stock No. 440-149
Mfr. Part No.110333
BrandMaxon
MYR539.73
Each
units
370:1 Planetary 0.375 Nm - - - - - - - -