Spur Gears

Spur gears, also known as straight-cut gears, are a common type of gear used in a wide range of applications. They are designed to transmit large amounts of power by placing them on parallel shafts which rotate in opposite directions.


Spur gears consist of a cylinder with teeth around the outer edge. They have a straight tooth, involute profile which project radially and are parallel to the rotation of the axis. This allows for a smoother operation between each gear and permits greater mounting distances. Spur gears can have a central hub or be hubless and are available in a variety of pitch, hub and bore diameters. The standard pressure angles in spur gears are 14.5, 20 and 25 degrees, and refer to the angle that force is transmitted between the meshing gears.Spur gears are capable of meshing with other gears, with many gears being used to create large gear reductions. When they are meshed the gear with the most teeth is referred to as the gear, whereas the one with smaller teeth is referred to as the pinion. The size of the spur gear is described as "module".


  • Types of spur gears

    Plastic spur gears are commonly made from acetal or nylon and have many positive characteristics including being lightweight, non-rusting and quiet. They enable low cost and large production capabilities and are also able to operate without lubrication. For hygiene reasons, plastic spur gears are an excellent choice for use in industries dealing with food production and medical equipment.Metal spur gears have more strength, load-carrying capacity and heat resilience than their plastic counterpart. They are more dimensionally stable compared to plastic and can be made from many metals such as aluminium, brass and stainless steel.

  • What are the advantages of a spur gear?

    High transmission efficiencyCompact and very easy to installConstant velocity ratioNo slippage unlike belt drivesHighly reliableCan transmit large amounts of power

  • Where are spur gears used?

    Metal cutting machinesMarine enginesMechanical clocks and watchesFuel pumpsWashing machinesGear motors and gear pumpsRack and pinion mechanismsMaterial handling equipmentAutomobile gear boxesSteel and rolling mills

...
Read more Read less

Filters

Viewing 41 - 60 of 313 products
Results per page
Description Price Module Number of Teeth Material Bore Diameter Hub Diameter Pitch Diameter Face Width
RS Stock No. 521-7174
BrandRS PRO
SGD8.06
Each
units
0.5 60 POM 6mm 14mm 30mm 3mm
RS Stock No. 521-7629
BrandRS PRO
SGD16.26
Each
units
1 50 POM 8mm 16mm 50mm 6mm
RS Stock No. 521-7275
BrandRS PRO
SGD5.13
Each
units
0.8 20 POM 5mm 10mm 16mm 4mm
RS Stock No. 521-7196
BrandRS PRO
SGD5.38
Each
units
0.5 70 POM 6mm 14mm 35mm 3mm
RS Stock No. 521-6597
BrandRS PRO
SGD13.08
Each
units
2 20 Steel 12mm 32mm 40mm 20mm
RS Stock No. 521-7679
BrandRS PRO
SGD16.00
Each
units
1 70 POM 8mm 18mm 70mm 6mm
RS Stock No. 521-7354
BrandRS PRO
SGD6.16
Each
units
0.8 40 POM 6mm 12mm 32mm 4mm
RS Stock No. 521-6531
BrandRS PRO
SGD165.90
Each
units
1.5 80 Steel 15mm 60mm 120mm 15mm
RS Stock No. 521-6698
BrandRS PRO
SGD222.69
Each
units
2 80 Steel 20mm 60mm 160mm 20mm
RS Stock No. 521-6783
BrandRS PRO
SGD64.40
Each
units
1 50 Stainless Steel 10mm 35mm 50mm 10mm
RS Stock No. 521-6452
BrandRS PRO
SGD27.30
Each
units
1.5 24 Steel 8mm 28mm 36mm 15mm
RS Stock No. 521-6351
BrandRS PRO
SGD54.09
Each
units
1 50 Steel 10mm 35mm 50mm 10mm
RS Stock No. 521-7203
BrandRS PRO
SGD7.88
Each
units
0.5 72 POM 6mm 14mm 36mm 3mm
RS Stock No. 521-6569
BrandRS PRO
SGD20.08
Each
units
2 16 Steel 12mm 26mm 32mm 20mm
RS Stock No. 878-7881
BrandRS PRO
SGD41.55
Each
units
0.8 50 Steel 8mm 19mm 40mm 6mm
RS Stock No. 878-7847
BrandRS PRO
SGD54.06
Each
units
0.5 60 Steel 4mm 10mm 30mm 4mm
RS Stock No. 521-7297
BrandRS PRO
SGD3.71
Each
units
0.8 25 POM 5mm 10mm 20mm 4mm
RS Stock No. 521-7477
BrandRS PRO
SGD6.35
Each
units
1 15 POM 4mm 8mm 15mm 6mm
RS Stock No. 878-7862
BrandRS PRO
SGD18.31
Each
units
0.8 18 Steel 5mm 12mm 14.4mm 6mm
RS Stock No. 878-7900
BrandRS PRO
SGD20.26
Each
units
1 15 Steel 6mm 14mm 15mm 5mm