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. 


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 their simple design, significant load carrying capacity and 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
MYR107.77
Each
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1 Steel Flexible 500mm 160 11mm 10mm +100°C
RS Stock No. 521-7815
BrandRS PRO
MYR205.09
Each
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1 Acetal - 500mm 160 11mm 10mm -
RS Stock No. 876-2406
BrandRS PRO
MYR118.75
Each
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0.5 Steel - 300mm - 9.5mm 5mm -
RS Stock No. 521-7837
BrandRS PRO
MYR572.31
Each
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1 POM Flexible 2000mm 636 0.9mm 5mm +100°C
RS Stock No. 122-3445
BrandRS PRO
MYR247.32
Each
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- Aluminium - - - - - -
RS Stock No. 182-7921
BrandRS PRO
MYR27.00
Each
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0.7 - - 250mm - 6mm 6mm -
RS Stock No. 182-7858
BrandRS PRO
MYR126.32
Each
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1.0 Steel - 500mm - 9mm 10mm -
RS Stock No. 521-7821
BrandRS PRO
MYR456.79
Each
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0.8 POM Flexible 2000mm 795 0.7mm 3.8mm +100°C
RS Stock No. 182-7859
BrandRS PRO
MYR252.82
Each
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1.0 Steel - 1000mm - 9mm 10mm -
RS Stock No. 521-7786
BrandRS PRO
MYR166.00
Each
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1.5 Steel - 500mm 107 18.5mm 15mm -
RS Stock No. 182-7960
BrandRS PRO
MYR94.45
Each
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2.0 - - 250mm - 9mm 15.4mm -
RS Stock No. 521-7792
BrandRS PRO
MYR170.17
Each
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2 Steel - 500mm 80 23mm 20mm -
RS Stock No. 122-3444
BrandRS PRO
MYR1,427.49
Each
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2 Plastic Flexible 2000mm - 1.1mm 8mm +100°C
RS Stock No. 876-2416
BrandRS PRO
MYR302.24
Each
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1.5 Steel - 1000mm - 18.5mm 15mm -
RS Stock No. 182-7942
BrandRS PRO
MYR65.57
Each
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1.5 - - 250mm - 10.5mm 12mm -
RS Stock No. 182-7854
BrandRS PRO
MYR235.80
Each
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1.0 Steel - 1000mm - 14mm 15mm -
RS Stock No. 876-2419
BrandRS PRO
MYR145.13
Each
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1 Steel - 300mm - - 6mm -
RS Stock No. 182-7860
BrandRS PRO
MYR134.77
Each
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2.0 Steel - 500mm - 18mm 20mm -
RS Stock No. 122-3443
BrandRS PRO
MYR1,062.05
Each
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1.5 Plastic Flexible 2000mm - 1mm 6.5mm +100°C
RS Stock No. 182-7984
BrandRS PRO
MYR38.80
Each
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1.0 - - 250mm - 8mm 9mm -