Spur & Change Gears

Motion carries a vast selection of spur and change gears for your mechanical power transmission needs. Browse through change gears, external tooth spur gears, spur gear idlers, and internal tooth spur gears.

Looking for high quality spur gears for your future projects and plans, or some replacement spur gears for existing systems and machines? No matter what kind of spur gears you require, you can find them all right here at Motion, the home of high quality industrial products.

What are Spur Gears?

Spur gears, which are also sometimes known as straight-cut gears, are a type of gears. They're often regarded as the simplest form of gear available and have one of the widest ranges of applications, due to their simplistic design. Like other kinds of gear, a spur gear consists of a cylinder or disk with a series of protruding teeth around the outside. The teeth are all identical in terms of shape and size, pointing straight out from the center of the gear itself.

There are two main types of spur gears: external and internal. External spur gears are those with the teeth on the outside of the cylinder, while internal spur gears have the teeth on the internal side of the cylinder.

What are Spur Gears Used for?

As with other kinds of gears, spur gears are classed as mechanical power transmission products, used for transferring mechanical energy along a system or throughout a piece of machinery. As the gears turn, they transfer movement to the next gear or part in the system, allowing various machines, systems, and appliances to function.

The Best Spur Gears

Gears are placed under high amounts of pressure, which is why it’s best to always use top quality gears that can withstand repeated use and heavy loads. You’ll find only the best spur gears for sale here at Motion.

Buy Spur Gears Online

Choose Motion for your next order of spur gears or any other kind of gears. We have a wide array of mechanical power products to choose from, with the lowest prices and best levels of customer support. Check out the full collection and order today.

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Manufacturer Name: Boston Gear (Altra)

Boston Gear (Altra) NA28B-1/2   

Spur Gear, 20 DP, 14 1/2 PA, 28 Teeth, Steel

MI ITEM 00374396

AVAILABLE
Factory Order
Boston Gear (Altra) NA28B-1/2
$78.38each
for your price $78.38each
Boston Gear (Altra) NA28B-1/2

Boston Gear (Altra) YJ18-1-1/8   

Spur Gear, 6 DP, 20 PA, 18 Teeth, Steel

MI ITEM 03865032

AVAILABLE
Factory Order
Boston Gear (Altra) YJ18-1-1/8
$281.99each
for your price $281.99each
Boston Gear (Altra) YJ18-1-1/8

Boston Gear (Altra) ND21B   

Spur Gear, 12 DP, 14 1/2 PA, 21 Teeth, Steel

MI ITEM 00370066

IN STOCK
In stock
Boston Gear (Altra) ND21B
$77.17each
for your price $77.17each
Boston Gear (Altra) ND21B

Boston Gear (Altra) ND24B-1   

Spur Gear, 12 DP, 14 1/2 PA, 24 Teeth, Steel

MI ITEM 00374543

IN STOCK
In stock
Boston Gear (Altra) ND24B-1
$133.17each
for your price $133.17each
Boston Gear (Altra) ND24B-1

Boston Gear (Altra) NB96   

Spur Gear, 16 DP, 14 1/2 PA, 96 Teeth, Cast Iron

MI ITEM 00369988

AVAILABLE
Factory Order
Boston Gear (Altra) NB96
$199.93each
for your price $199.93each
Boston Gear (Altra) NB96

Boston Gear (Altra) NB32-5/8   

Spur Gear, 16 DP, 14 1/2 PA, 32 Teeth, Steel

MI ITEM 00374589

AVAILABLE
Factory Order
Boston Gear (Altra) NB32-5/8
$125.72each
for your price $125.72each
Boston Gear (Altra) NB32-5/8

Boston Gear (Altra) NB54   

Spur Gear, 16 DP, 14 1/2 PA, 54 Teeth, Cast Iron

MI ITEM 00369961

AVAILABLE
Factory Order
Boston Gear (Altra) NB54
$127.08each
for your price $127.08each
Boston Gear (Altra) NB54

Boston Gear (Altra) YA70A   

Spur Gear, 20 DP, 20 PA, 70 Teeth, Steel

MI ITEM 00371682

AVAILABLE
Factory Order
Boston Gear (Altra) YA70A
$131.10each
for your price $131.10each
Boston Gear (Altra) YA70A

Boston Gear (Altra) NF24B-1   

Spur Gear, 10 DP, 14 1/2 PA, 24 Teeth, Steel

MI ITEM 00374515

IN STOCK
In stock
Boston Gear (Altra) NF24B-1
$163.22each
for your price $163.22each
Boston Gear (Altra) NF24B-1

Boston Gear (Altra) NA60A   

Spur Gear, 20 DP, 14 1/2 PA, 60 Teeth, Steel

MI ITEM 00369798

IN STOCK
In stock
Boston Gear (Altra) NA60A
$111.43each
for your price $111.43each
Boston Gear (Altra) NA60A

Boston Gear (Altra) YB144   

Spur Gear, 16 DP, 20 PA, 144 Teeth, Cast Iron

MI ITEM 00371762

AVAILABLE
Factory Order
Boston Gear (Altra) YB144
$415.64each
for your price $415.64each
Boston Gear (Altra) YB144

Boston Gear (Altra) GB22   

Change Gear, 16 DP, 14 1/2 PA, 22 Teeth, Steel

MI ITEM 00367180

AVAILABLE
Factory Order
Boston Gear (Altra) GB22
$75.25each
for your price $75.25each
Boston Gear (Altra) GB22

Boston Gear (Altra) NF80   

Spur Gear, 10 DP, 14 1/2 PA, 80 Teeth, Cast Iron

MI ITEM 00370298

AVAILABLE
Factory Order
Boston Gear (Altra) NF80
$369.91each
for your price $369.91each
Boston Gear (Altra) NF80

Boston Gear (Altra) YD12   

Spur Gear, 12 DP, 20 PA, 12 Teeth, Steel

MI ITEM 00371780

AVAILABLE
Factory Order
Boston Gear (Altra) YD12
$61.84each
for your price $61.84each
Boston Gear (Altra) YD12

Boston Gear (Altra) YD24   

Spur Gear, 12 DP, 20 PA, 24 Teeth, Steel

MI ITEM 00371806

AVAILABLE
Factory Order
Boston Gear (Altra) YD24
$87.75each
for your price $87.75each
Boston Gear (Altra) YD24

Boston Gear (Altra) YD12-1/2 STEEL SPUR GEAR C   

Spur Gear, 12 DP, 20 PA, 12 Teeth, Steel

MI ITEM 09433428

AVAILABLE
Factory Order
Boston Gear (Altra) YD12-1/2 STEEL SPUR GEAR C
$76.76each
for your price $76.76each
Boston Gear (Altra) YD12-1/2 STEEL SPUR GEAR C

Boston Gear (Altra) NA15B   

Spur Gear, 20 DP, 14 1/2 PA, 15 Teeth, Steel

MI ITEM 00369721

IN STOCK
In stock
Boston Gear (Altra) NA15B
$37.85each
for your price $37.85each
Boston Gear (Altra) NA15B

Boston Gear (Altra) H2424   

Spur Gear, 24 DP, 14 1/2 PA, 24 Teeth, Steel

MI ITEM 00368695

IN STOCK
In stock
Boston Gear (Altra) H2424
$58.99each
for your price $58.99each
Boston Gear (Altra) H2424

Boston Gear (Altra) YD18   

Spur Gear, 12 DP, 20 PA, 18 Teeth, Steel

MI ITEM 00371796

AVAILABLE
Factory Order
Boston Gear (Altra) YD18
$73.00each
for your price $73.00each
Boston Gear (Altra) YD18

Boston Gear (Altra) YH28   

Spur Gear, 8 DP, 20 PA, 28 Teeth, Steel

MI ITEM 00371972

AVAILABLE
Factory Order
Boston Gear (Altra) YH28
$217.35each
for your price $217.35each
Boston Gear (Altra) YH28

Boston Gear (Altra) NB16B   

Spur Gear, 16 DP, 14 1/2 PA, 16 Teeth, Steel

MI ITEM 00369897

IN STOCK
In stock
Boston Gear (Altra) NB16B
$45.45each
for your price $45.45each
Boston Gear (Altra) NB16B

Boston Gear (Altra) NH28A   

Spur Gear, 8 DP, 14 1/2 PA, 28 Teeth, Steel

MI ITEM 00370406

AVAILABLE
Factory Order
Boston Gear (Altra) NH28A
$240.00each
for your price $240.00each
Boston Gear (Altra) NH28A

Boston Gear (Altra) YB80A   

Spur Gear, 16 DP, 20 PA, 80 Teeth, Steel

MI ITEM 00371754

IN STOCK
In stock
Boston Gear (Altra) YB80A
$188.90each
for your price $188.90each
Boston Gear (Altra) YB80A

Boston Gear (Altra) NB20B   

Spur Gear, 16 DP, 14 1/2 PA, 20 Teeth, Steel

MI ITEM 00369908

IN STOCK
In stock
Boston Gear (Altra) NB20B
$65.10each
for your price $65.10each
Boston Gear (Altra) NB20B
Boston Gear (Altra) NA28B-1/2
MI ITEM 00374396
Available - Factory Order
$78.38each
Boston Gear (Altra) YJ18-1-1/8
MI ITEM 03865032
Available - Factory Order
$281.99each
Boston Gear (Altra) ND21B
MI ITEM 00370066
In stock
$77.17each
Boston Gear (Altra) ND24B-1
MI ITEM 00374543
In stock
$133.17each
Boston Gear (Altra) NB96
MI ITEM 00369988
Available - Factory Order
$199.93each
Boston Gear (Altra) NB32-5/8
MI ITEM 00374589
Available - Factory Order
$125.72each
Boston Gear (Altra) NB54
MI ITEM 00369961
Available - Factory Order
$127.08each
Boston Gear (Altra) YA70A
MI ITEM 00371682
Available - Factory Order
$131.10each
Boston Gear (Altra) NF24B-1
MI ITEM 00374515
In stock
$163.22each
Boston Gear (Altra) NA60A
MI ITEM 00369798
In stock
$111.43each
Boston Gear (Altra) YB144
MI ITEM 00371762
Available - Factory Order
$415.64each
Boston Gear (Altra) GB22
MI ITEM 00367180
Available - Factory Order
$75.25each
Boston Gear (Altra) NF80
MI ITEM 00370298
Available - Factory Order
$369.91each
Boston Gear (Altra) YD12
MI ITEM 00371780
Available - Factory Order
$61.84each
Boston Gear (Altra) YD24
MI ITEM 00371806
Available - Factory Order
$87.75each
Boston Gear (Altra) YD12-1/2 STEEL SPUR GEAR C
MI ITEM 09433428
Available - Factory Order
$76.76each
Boston Gear (Altra) NA15B
MI ITEM 00369721
In stock
$37.85each
Boston Gear (Altra) H2424
MI ITEM 00368695
In stock
$58.99each
Boston Gear (Altra) YD18
MI ITEM 00371796
Available - Factory Order
$73.00each
Boston Gear (Altra) YH28
MI ITEM 00371972
Available - Factory Order
$217.35each
Boston Gear (Altra) NB16B
MI ITEM 00369897
In stock
$45.45each
Boston Gear (Altra) NH28A
MI ITEM 00370406
Available - Factory Order
$240.00each
Boston Gear (Altra) YB80A
MI ITEM 00371754
In stock
$188.90each
Boston Gear (Altra) NB20B
MI ITEM 00369908
In stock
$65.10each