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

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Igus Igutek P360 60 Teeth Spur Gear, 1 Module, 8mm Bore Diam, 60mm Pitch Diam, 21mm Hub Diam RS Stock No.: 272-5579 Mfr. Part No.: P360GM-ST-100-060-00-080-R Datasheets: HK$305.56 Each	Igus	1	60	Igutek P360	8mm	21mm	60mm	-
Igus Igutek P360 36 Teeth Spur Gear, 1.5 Module, 10mm Bore Diam, 54mm Pitch Diam, 24mm Hub Diam RS Stock No.: 272-5654 Mfr. Part No.: P360GM-ST-150-036-00-100-R Datasheets: HK$311.17 Each	Igus	1.5	36	Igutek P360	10mm	24mm	54mm	-
Igus Iguform S270 48 Teeth Spur Gear, 0.5 Module, 6mm Bore Diam, 24mm Pitch Diam, 15mm Hub Diam RS Stock No.: 272-3556 Mfr. Part No.: S270GM-ST-050-048-00-060-R Datasheets: HK$65.55 Each	Igus	0.5	48	Iguform S270	6mm	15mm	24mm	-
Igus Igutek P360 17 Teeth Spur Gear, 1.5 Module, 6mm Bore Diam, 25.5mm Pitch Diam, 14mm Hub Diam RS Stock No.: 272-5639 Mfr. Part No.: P360GM-ST-150-017-00-060-R Datasheets: HK$184.18 Each	Igus	1.5	17	Igutek P360	6mm	14mm	25.5mm	-
Igus Iguform S270 27 Teeth Spur Gear, 1.5 Module, 8mm Bore Diam, 40.5mm Pitch Diam, 19mm Hub Diam RS Stock No.: 272-5649 Mfr. Part No.: P360GM-ST-150-027-00-080-R Datasheets: HK$266.44 Each	Igus	1.5	27	Iguform S270	8mm	19mm	40.5mm	-
Igus Igutek P360 38 Teeth Spur Gear, 0.5 Module, 4mm Bore Diam, 19mm Pitch Diam, 12mm Hub Diam RS Stock No.: 272-5484 Mfr. Part No.: P360GM-ST-050-038-00-040-R Datasheets: HK$51.02 Each	Igus	0.5	38	Igutek P360	4mm	12mm	19mm	-
Igus Iguform S270 27 Teeth Spur Gear, 3 Module, 14mm Bore Diam, 81mm Pitch Diam, 28mm Hub Diam RS Stock No.: 272-4237 Mfr. Part No.: S270GM-ST-300-027-00-140-R Datasheets: HK$477.39 Each	Igus	3	27	Iguform S270	14mm	28mm	81mm	-
Igus Igutek P360 20 Teeth Spur Gear, 2.5 Module, 10mm Bore Diam, 50mm Pitch Diam, 20mm Hub Diam RS Stock No.: 272-5720 Mfr. Part No.: P360GM-ST-250-020-00-100-R Datasheets: HK$444.33 Each	Igus	2.5	20	Igutek P360	10mm	20mm	50mm	-
Igus Iguform S270 50 Teeth Spur Gear, 2.5 Module, 16mm Bore Diam, 125mm Pitch Diam, 30mm Hub Diam RS Stock No.: 272-5738 Mfr. Part No.: P360GM-ST-250-050-00-160-R Datasheets: HK$640.75 Each	Igus	2.5	50	Iguform S270	16mm	30mm	125mm	-
Igus Igutek P360 100 Teeth Spur Gear, 1.25 Module, 12mm Bore Diam, 125mm Pitch Diam, 24mm Hub Diam RS Stock No.: 272-5632 Mfr. Part No.: P360GM-ST-125-100-00-120-R Datasheets: HK$416.64 Each	Igus	1.25	100	Igutek P360	12mm	24mm	125mm	-
Igus Iguform S270 90 Teeth Spur Gear, 1.5 Module, 14mm Bore Diam, 135mm Pitch Diam, 30mm Hub Diam RS Stock No.: 272-5667 Mfr. Part No.: P360GM-ST-150-090-00-140-R Datasheets: HK$2,200.37 Each	Igus	1.5	90	Iguform S270	14mm	30mm	135mm	-
Igus Igutek P360 70 Teeth Spur Gear, 1 Module, 10mm Bore Diam, 70mm Pitch Diam, 21mm Hub Diam RS Stock No.: 272-5582 Mfr. Part No.: P360GM-ST-100-070-00-100-R Datasheets: HK$311.17 Each	Igus	1	70	Igutek P360	10mm	21mm	70mm	-
Igus Iguform S270 14 Teeth Spur Gear, 1 Module, 4mm Bore Diam, 14mm Pitch Diam, 9mm Hub Diam RS Stock No.: 272-5549 Mfr. Part No.: P360GM-ST-100-014-00-040-R Datasheets: HK$123.44 Each	Igus	1	14	Iguform S270	4mm	9mm	14mm	-
Igus Igutek P360 75 Teeth Spur Gear, 0.5 Module, 6mm Bore Diam, 37.5mm Pitch Diam, 15mm Hub Diam RS Stock No.: 272-5499 Mfr. Part No.: P360GM-ST-050-075-00-060-R Datasheets: HK$100.21 Each	Igus	0.5	75	Igutek P360	6mm	15mm	37.5mm	-
Igus Iguform S270 80 Teeth Spur Gear, 0.5 Module, 6mm Bore Diam, 40mm Pitch Diam, 15mm Hub Diam RS Stock No.: 272-3568 Mfr. Part No.: S270GM-ST-050-080-00-060-R Datasheets: HK$88.77 Each	Igus	0.5	80	Iguform S270	6mm	15mm	40mm	-
Igus Igutek P360 30 Teeth Spur Gear, 0.5 Module, 4mm Bore Diam, 15mm Pitch Diam, 11.9mm Hub Diam RS Stock No.: 272-5480 Mfr. Part No.: P360GM-ST-050-030-00-040-R Datasheets: HK$45.42 Each	Igus	0.5	30	Igutek P360	4mm	11.9mm	15mm	-
Igus Iguform S270 42 Teeth Spur Gear, 1 Module, 8mm Bore Diam, 42mm Pitch Diam, 18mm Hub Diam RS Stock No.: 272-3638 Mfr. Part No.: S270GM-ST-100-042-00-080-R Datasheets: HK$168.17 Each	Igus	1	42	Iguform S270	8mm	18mm	42mm	-
Igus Igutek P360 36 Teeth Spur Gear, 1.25 Module, 8mm Bore Diam, 45mm Pitch Diam, 18mm Hub Diam RS Stock No.: 272-5613 Mfr. Part No.: P360GM-ST-125-036-00-080-R Datasheets: HK$247.68 Each	Igus	1.25	36	Igutek P360	8mm	18mm	45mm	-
Igus Iguform S270 50 Teeth Spur Gear, 1 Module, 8mm Bore Diam, 50mm Pitch Diam, 18mm Hub Diam RS Stock No.: 272-3641 Mfr. Part No.: S270GM-ST-100-050-00-080-R Datasheets: HK$214.39 Each	Igus	1	50	Iguform S270	8mm	18mm	50mm	-
Igus Igutek P360 19 Teeth Spur Gear, 1.5 Module, 8mm Bore Diam, 28.5mm Pitch Diam, 17mm Hub Diam RS Stock No.: 272-5641 Mfr. Part No.: P360GM-ST-150-019-00-080-R Datasheets: HK$194.25 Each	Igus	1.5	19	Igutek P360	8mm	17mm	28.5mm	-

Spur Gears

Types of spur gears

What are the advantages of a spur gear?

Where are spur gears used?

946 Products showing for Spur Gears

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