Gear Racks

A gear rack is a mechanical component that forms part of a linear actuator, which transfers rotational movement into linear movement. Gear racks work in conjunction with pinions (circular gears) to create vertical and horizontal movement, for example, in lifting equipment. Both the gear rack and the pinion have teeth cut into them. Applying rotational movement to the pinion causes its teeth to interact with the teeth on the straight gear rack, creating linear movement.

In addition, gear rack rails and fixing kits offer a quick and easy installation solution, allowing gear racks to be used in a wide range of applications.

What are gear racks used for?

Gear racks are important for applications where shaft rotation is done by hand or a motor. They are also used to control valves in pipeline transport. Apart from usage in lifting mechanisms, gear racks can help directional change. They provide rigidness coupled with responsiveness for increased control, which is ideal for steering systems.

Their main advantages are:

  • Simple design
  • Significant load carrying capacity
  • Unlimited length design capabilities

Types of gear racks

Conveying systems use fixed racks, where the rack and pinion are joined with straight or helical teeth and the rack remains stationary. Extrusion systems make use of moving racks, which rotate around the gear, supported by roller mechanisms.


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Description Price Module Material Flexibility Overall Length Number of Teeth Pitch Centre Height Face Width Maximum Operating Temperature
RS Stock No. 521-7770
BrandRS PRO
SGD40.15
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1 Steel Flexible 500mm 160 11mm 10mm +100°C
RS Stock No. 122-3445
BrandRS PRO
SGD83.07
Each
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- Aluminium - - - - - -
RS Stock No. 521-7809
BrandRS PRO
SGD141.18
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1 Stainless Steel - 500mm 160 11mm 10mm -
RS Stock No. 521-7865
BrandRS PRO
SGD16.32
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- Aluminium - 10.2mm - - - -
RS Stock No. 876-2425
BrandRS PRO
SGD113.73
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2 Steel - 1000mm - 23mm 20mm -
RS Stock No. 521-7815
BrandRS PRO
SGD79.94
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1 Acetal - 500mm 160 11mm 10mm -
RS Stock No. 122-3443
BrandRS PRO
SGD346.28
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1.5 Plastic Flexible 2000mm - 1mm 6.5mm +100°C
RS Stock No. 521-7821
BrandRS PRO
SGD163.07
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0.8 POM Flexible 2000mm 795 0.7mm 3.8mm +100°C
RS Stock No. 122-3447
BrandRS PRO
SGD46.59
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- Aluminium - 11.4mm - - - -
RS Stock No. 521-7792
BrandRS PRO
SGD63.36
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2 Steel - 500mm 80 23mm 20mm -
RS Stock No. 521-7786
BrandRS PRO
SGD61.04
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1.5 Steel - 500mm 107 18.5mm 15mm -
RS Stock No. 876-2412
BrandRS PRO
SGD72.97
Each
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1 Steel - 1000mm - 11mm 10mm -
RS Stock No. 122-3446
BrandRS PRO
SGD123.39
Each
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- Aluminium - 1000mm - - - -
RS Stock No. 182-7861
BrandRS PRO
SGD100.42
Each
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2.0 Steel - 1000mm - 18mm 20mm -
RS Stock No. 876-2419
BrandRS PRO
SGD44.84
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1 Steel - 300mm - - 6mm -
RS Stock No. 182-7853
BrandRS PRO
SGD43.91
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1.0 Steel - 500mm - 14mm 15mm -
RS Stock No. 122-3444
BrandRS PRO
SGD515.99
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2 Plastic Flexible 2000mm - 1.1mm 8mm +100°C
RS Stock No. 876-2406
BrandRS PRO
SGD44.21
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0.5 Steel - 300mm - 9.5mm 5mm -
RS Stock No. 182-7854
BrandRS PRO
SGD87.79
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1.0 Steel - 1000mm - 14mm 15mm -
RS Stock No. 876-2416
BrandRS PRO
SGD112.56
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1.5 Steel - 1000mm - 18.5mm 15mm -