Spur Gears

The most common type of gears are spur gears, also known as straight-cut gears, and can be found in a multitude of applications. They have been specifically designed to transmit large amounts of power by placing them on parallel shafts which rotate in opposite directions.Spur gears have an involute profile with straight teeth 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.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.So what are the advantages? High transmission efficiency Compact and very easy to install Constant velocity ratio No slippage – unlike belt drives Highly reliable Can transmit large amounts of powerTypes of spur gearsPlastic 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.Common applications Metal cutting machines Power plants Marine engines Mechanical clocks and watches Fuel pumps Washing machines Gear motors and gear pumps Rack and pinion mechanisms Material handling equipment Automobile gear boxes Steel mills Rolling millsSpur gears are however very loud and so will not be found in vehicles. When the teeth collide with each other there is an impact noise which is really loud compared to the helical gears found in cars.

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Description Price Module Number of Teeth Material Bore Diameter Hub Diameter Pitch Diameter Face Width
RS庫存編號 521-7629
BrandRS PRO
HK$88.77
單位
1 50 POM 8mm 16mm 50mm 6mm
RS庫存編號 182-7881
BrandRS PRO
HK$86.90
單位
0.5 15 Steel 3mm 6mm 7.5mm 4mm
RS庫存編號 521-7253
BrandRS PRO
HK$17.44
單位
0.8 16 POM 4mm 8mm 12.8mm 4mm
RS庫存編號 521-6193
BrandRS PRO
HK$64.52
單位
1 12 Steel 6mm 14mm 12mm 10mm
RS庫存編號 182-7826
BrandRS PRO
HK$458.66
單位
1 80 Steel 12mm 50mm 80mm 15mm
RS庫存編號 521-7180
BrandRS PRO
HK$39.47
單位
0.5 64 POM 6mm 14mm 32mm 3mm
RS庫存編號 182-7815
BrandRS PRO
HK$118.29
單位
1 30 Steel 8mm 20mm 30mm 15mm
RS庫存編號 521-6654
BrandRS PRO
HK$337.02
單位
2 40 Steel 15mm 55mm 80mm 20mm
RS庫存編號 521-6468
BrandRS PRO
HK$200.43
單位
1.5 30 Steel 10mm 38mm 45mm 15mm
RS庫存編號 521-6266
BrandRS PRO
HK$74.42
單位
1 24 Steel 8mm 20mm 24mm 10mm
RS庫存編號 521-6575
BrandRS PRO
HK$98.67
單位
2 18 Steel 12mm 30mm 36mm 20mm
RS庫存編號 521-6761
BrandRS PRO
HK$262.55
單位
1 30 Stainless Steel 8 16mm 25mm 30mm 10mm
RS庫存編號 182-7843
BrandRS PRO
HK$226.92
單位
1.5 35 Steel 12mm 35mm 52.5mm 17mm
RS庫存編號 182-7936
BrandRS PRO
HK$147.74
單位
1.5 40 - 10mm 24mm 60mm 12mm
RS庫存編號 182-7829
BrandRS PRO
HK$86.90
單位
1.5 13 Steel 8mm 14mm 19.5mm 17mm
RS庫存編號 182-7876
BrandRS PRO
HK$240.92
單位
0.7 55 Steel 6mm 18mm 38.5mm 5mm
RS庫存編號 182-7951
BrandRS PRO
HK$191.19
單位
2 28 - 10mm 24mm 56mm 15mm
RS庫存編號 878-7893
BrandRS PRO
HK$381.98
單位
0.8 80 Steel 10mm 22mm 64mm 6mm
RS庫存編號 878-7922
BrandRS PRO
HK$177.89
單位
1 50 Steel 6mm 14mm 50mm 5mm
RS庫存編號 182-7980
BrandRS PRO
HK$117.80
單位
1 55 - 8mm 21mm 55mm 9mm