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. 336-416
Mfr. Part No.P5-G27L82
MYR199.75
Each
units
250:1 Ovoid 0.8 Nm 4mm - - 47.6mm 16.5mm 20rpm - -
RS Stock No. 420-603
BrandRS PRO
MYR156.81
Each
units
1:1 L - 5mm - 57.3mm 30mm 57.3mm 500rpm - -
RS Stock No. 892-9265
Mfr. Part No.R32.0 17,4
BrandPortescap
MYR2,068.45
Each
units
17.4:1 Planetary 20 Nm 8mm 32 mm 58.5mm - - 6000 (Input)rpm - -
RS Stock No. 424-049
Mfr. Part No.MX6G180B
BrandPanasonic
MYR640.06
Each
units
180:1 Spur 2.45 Nm 8mm - 60mm 60mm 24.5mm 6.9rpm 6 W -
RS Stock No. 424-059
Mfr. Part No.MX8G10XB
BrandPanasonic
MYR290.26
Each
units
10:1 Spur - - - 80mm 80mm 30mm - 40 W -
RS Stock No. 624-4543
Mfr. Part No.MX8G30B
BrandPanasonic
MYR650.03
Each
units
30:1 Spur 3.82 Nm 10mm - 80mm 80mm 30mm 45rpm 25 W -
RS Stock No. 299-0107
Mfr. Part No.390.02.12
BrandHuco
MYR1,013.64
Each
units
2:1 T 4.1 Nm 15.01mm - 4.094in 4.843in 2.047in - - -
RS Stock No. 748-443
Mfr. Part No.332.31.3
BrandHuco
MYR87.09
Each
units
1:1 L 0.11 Nm 4mm - 30.5mm 30.5mm 18.7mm 1000rpm - 500 rpm
RS Stock No. 441-5147
Mfr. Part No.GS38.0500
MYR457.76
Each
units
500:1 Spur 2 Nm 6mm - 38mm 38mm 26mm - - -
RS Stock No. 424-194
Mfr. Part No.MX6G50B
BrandPanasonic
MYR640.06
Each
units
50:1 Spur 1.57 Nm 8mm - 60mm 60mm 24.5mm 25rpm 6 W -
RS Stock No. 892-9255
Mfr. Part No.K24.0 20
BrandPortescap
MYR522.68
Each
units
20:1 Spur 0.7 Nm 3mm 24 mm 28.4mm - - 5000 (Input)rpm - -
RS Stock No. 336-438
Mfr. Part No.P5-G17L82
MYR188.66
Each
units
50:1 Ovoid 0.8 Nm 4mm - - 47.6mm 16.5mm 100rpm - -
RS Stock No. 323-6088
Mfr. Part No.110482
BrandMaxon
MYR507.04
Each
units
32:1 Spur 0.15 Nm 3mm 24 mm 20.2mm - - - - -
RS Stock No. 441-5131
Mfr. Part No.GS38.0200
MYR434.90
Each
units
200:1 Spur 1.8 Nm 6mm - 38mm 38mm 23.5mm - - -
RS Stock No. 892-9268
Mfr. Part No.K24.0 128
BrandPortescap
MYR539.41
Each
units
128:1 Spur 0.7 Nm 3mm 24 mm 28.4mm - - 5000 (Input)rpm - -
RS Stock No. 455-2628
Mfr. Part No.52747
MYR101.34
Each
units
500:1 Ovoid 50 Ncm 4mm - - 55mm 12.5mm - - -
RS Stock No. 103-3980
Mfr. Part No.8GBK50BH
BrandDKM
MYR496.78
Each
units
50:1 - - 10mm - 80mm 80mm - - - -
RS Stock No. 323-4953
Mfr. Part No.110338
BrandMaxon
MYR588.70
Each
units
19:1 Planetary 0.8 Nm 4mm 22 mm 29.4mm - - - - -
RS Stock No. 748-437
Mfr. Part No.332.31.2
BrandHuco
MYR173.81
Each
units
1:1 L 0.68 Nm 4mm - 30.5mm 30.5mm 18.7mm - - -
RS Stock No. 336-400
Mfr. Part No.P5-G62L82
MYR248.53
Each
units
15000:1 Ovoid 1 Nm 4mm - - 47.6mm 16.5mm 1rph - -