System of Measurement System of Measurement |
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Component Component |
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OD OD |
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Roller Chain Trade Size Roller Chain Trade Size |
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Material Material |
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Bore Type Bore Type |
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Machinable | Round |
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Keyed |
Hub Diameter Hub Diameter | Show |
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Hub Diameter Hub Diameter | Hide |
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For Roller Chain Strand Type For Roller Chain Strand Type |
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Pressure Angle Pressure Angle |
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ID ID |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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For Shaft Type For Shaft Type |
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About Roller Chain and Sprockets
More
About Gears
More
Sprockets for Metric Roller Chain


Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN roller chain. They come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size.
For technical drawings and 3-D models, click on a part number.
Number of Teeth | For Shaft Dia., mm | For Max. Shaft Dia., mm | OD, mm | Overall Wd., mm | Hub Dia., mm | Material | Specifications Met | Each | |
For DIN, ISO 05B Roller Chain (8 mm Pitch) | |||||||||
---|---|---|---|---|---|---|---|---|---|
21 | 8 | 25 | 57.5 | 14 | 35 | Steel | DIN 8187, ISO 606 | 0000000 | 000000 |
22 | 8 | 25 | 60 | 14 | 35 | Steel | DIN 8187, ISO 606 | 0000000 | 00000 |
23 | 8 | 17 | 62 | 14 | 35 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
24 | 8 | 17 | 64.6 | 14 | 35 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
25 | 8 | 25 | 67.5 | 14 | 35 | Steel | DIN 8187, ISO 606 | 0000000 | 00000 |
Metal Gears and Gear Racks—20° Pressure Angle
The current industry standard, these 20° pressure angle gears have thicker, stronger teeth than 14½° pressure angle gears. Compared to plastic gears and racks, they’re better for high-load, high-speed, and heavy duty applications. Also known as spur gears.
Combine gears with different numbers of teeth to change speed and torque in your assembly. Combine a gear and rack to convert rotary motion into linear motion. To minimize your footprint, mount one or more standard gears inside of an internal gear.
For components to mesh correctly, they must have the same pressure angle and pitch/module.
Carbon steel components have hard, strong, and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals. They're best for high-torque machines, like lifting equipment, and heavy duty applications, such as rock crushing. Gears with teeth that are not hardened can be hardened to fit your application.
Stainless steel gears and racks resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning.
For technical drawings and 3-D models, click on a part number.





Hub | Keyway | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Material | Teeth Heat Treatment | Dia., mm | Wd., mm | Set Screw Thread Size | Wd., mm | Dp., mm | Each | |
Round Bore | |||||||||||||||
1 | 40 | 40 | 42 | 10 | 20 | 10 | 303 Stainless Steel | Not Hardened | 35 | 10 | __ | __ | __ | 00000000 | 000000 |
1 | 42 | 42 | 44 | 10 | 20 | 10 | 303 Stainless Steel | Not Hardened | 35 | 10 | __ | __ | __ | 00000000 | 00000 |
1 | 45 | 45 | 47 | 10 | 20 | 10 | 303 Stainless Steel | Not Hardened | 35 | 10 | __ | __ | __ | 00000000 | 00000 |
1 | 48 | 48 | 50 | 10 | 20 | 10 | Black-Oxide 1045 Carbon Steel | Not Hardened | 35 | 10 | __ | __ | __ | 00000000 | 00000 |
1 | 48 | 48 | 50 | 10 | 20 | 10 | 303 Stainless Steel | Not Hardened | 35 | 10 | __ | __ | __ | 00000000 | 00000 |
1 | 50 | 50 | 52 | 10 | 20 | 10 | 303 Stainless Steel | Not Hardened | 35 | 10 | __ | __ | __ | 00000000 | 00000 |
1 | 55 | 55 | 57 | 10 | 20 | 10 | Black-Oxide 1045 Carbon Steel | Not Hardened | 35 | 10 | __ | __ | __ | 00000000 | 00000 |
Round Bore with Set Screw | |||||||||||||||
1 | 40 | 40 | 42 | 10 | 20 | 8 | Black-Oxide 1045 Carbon Steel | Not Hardened | 35 | 10 | M5 | __ | __ | 00000000 | 00000 |
1 | 45 | 45 | 47 | 10 | 20 | 8 | Black-Oxide 1045 Carbon Steel | Not Hardened | 35 | 10 | M5 | __ | __ | 00000000 | 00000 |
1 | 45 | 45 | 47 | 10 | 20 | 8 | 1045 Carbon Steel | Not Hardened | 35 | 10 | M5 | __ | __ | 0000000 | 00000 |
1 | 50 | 50 | 52 | 10 | 20 | 8 | Black-Oxide 1045 Carbon Steel | Not Hardened | 35 | 10 | M5 | __ | __ | 00000000 | 00000 |
Keyed Bore with Set Screw | |||||||||||||||
1 | 60 | 60 | 62 | 10 | 20 | 10 | Black-Oxide 1045 Carbon Steel | Not Hardened | 35 | 10 | M4 | 4 | 1.8 | 00000000 | 00000 |
1 | 60 | 60 | 62 | 10 | 20 | 12 | 1045 Carbon Steel | Not Hardened | 35 | 10 | M4 | 4 | 1.8 | 0000000 | 00000 |
High-Power Metal Gears

and Crossed Left-Hand
Gear (Sold Separately)

with Right-Hand
Teeth (Sold Separately)


The helical teeth on these gears stay in contact for longer than straight teeth, which allows them to transmit higher loads at higher speeds than spur gears.
For gears to mesh correctly, they must have the same pressure angle and pitch. All of these gears transmit motion in a straight line—make sure to get one left-hand and one right-hand gear. To change speed and torque in your assembly, pair two gears with different numbers of teeth.
Standard helical components have a 21 1/2° helix angle so they only transmit motion in a straight line since the helix angle is so small. Made from alloy steel, these gears resist abrasion and are stronger than carbon steel gears. Their teeth are ground, so they're more precise than gears with rolled teeth. Pair them with a rack or a gear that has a different tooth direction.
Crossed helical gears, also known as screw gears, can be configured to transmit motion at a 90° angle. To transmit motion at a 90° angle, pair two gears with the same tooth direction. To avoid wearing down gears, which happens when you use the same material, we recommend mating gears with different materials. Carbon steel gears are stronger than 303 stainless steel gears but are not as corrosion resistant. 303 stainless steel gears have good corrosion resistance, and are commonly used on machinery in food-processing plants.
Gears with hardened teeth have better wear resistance than gears with teeth that are not hardened.
For technical drawings and 3-D models, click on a part number.


Hub | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Number of Teeth | Helix Angle | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Teeth Heat Treatment | Dia., mm | Wd., mm | Each | |
Left Hand | ||||||||||||
Round Bore—Black-Oxide 1045 Carbon Steel | ||||||||||||
1 | 30 | 45° | 42 | 44.43 | 10 | 20 | 10 | Not Hardened | 35 | 10 | 00000000 | 000000 |
2 | 15 | 45° | 42 | 46.43 | 20 | 35 | 12 | Not Hardened | 35 | 15 | 00000000 | 00000 |
2.5 | 13 | 45° | 46 | 50.96 | 22 | 38 | 15 | Not Hardened | 35 | 16 | 00000000 | 00000 |
Round Bore—303 Stainless Steel | ||||||||||||
2 | 15 | 45° | 42 | 46.43 | 20 | 35 | 12 | Not Hardened | 35 | 15 | 00000000 | 00000 |
2.5 | 13 | 45° | 46 | 50.96 | 22 | 38 | 15 | Not Hardened | 35 | 16 | 00000000 | 000000 |
Right Hand | ||||||||||||
Round Bore—Black-Oxide 1045 Carbon Steel | ||||||||||||
1 | 30 | 45° | 42 | 44.43 | 10 | 20 | 10 | Not Hardened | 35 | 10 | 00000000 | 00000 |
2 | 15 | 45° | 42 | 46.43 | 20 | 35 | 12 | Not Hardened | 35 | 15 | 00000000 | 00000 |
2.5 | 13 | 45° | 46 | 50.96 | 22 | 38 | 15 | Not Hardened | 35 | 16 | 00000000 | 00000 |
Round Bore—303 Stainless Steel | ||||||||||||
2 | 15 | 45° | 42 | 46.43 | 20 | 35 | 12 | Not Hardened | 35 | 15 | 00000000 | 00000 |
2.5 | 13 | 45° | 46 | 50.96 | 22 | 38 | 15 | Not Hardened | 35 | 16 | 00000000 | 000000 |
Metal Worms and Worm Gears

Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle and pitch/module. These worms are compatible with plastic worm gears.
Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.
Cast iron gears are strong and durable.
Bronze gears have low friction and dissipate heat better than cast iron gears to provide a long service life for both the gear and the worm. They’re also more corrosion resistant than cast iron gears.
Aluminum-bronze gears have excellent wear resistance.
For technical drawings and 3-D models, click on a part number.



Hub | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Speed Ratio | Number of Teeth | Pressure Angle | Gear Pitch Dia., mm | For Number of Thread Starts | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Dia., mm | Wd., mm | Material | For Thread Direction | Teeth Heat Treatment | Teeth Fabrication | Each | |
Round Bore—Cast Iron | |||||||||||||||||
1 | 80:1 | 80 | 20° | 80 | 1 | 83 | 10 | 20 | 10 | 35 | 10 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
2.5 | 20:1 | 20 | 20° | 50 | 1 | 57.5 | 22 | 36 | 12 | 35 | 14 | Cast Iron | Left Hand | Not Hardened | Not Ground | 000000000 | 00000 |
2.5 | 20:1 | 20 | 20° | 50 | 1 | 57.5 | 22 | 36 | 12 | 35 | 14 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
2.5 | 10:1 | 20 | 20° | 50 | 2 | 57.5 | 22 | 36 | 12 | 35 | 14 | Cast Iron | Left Hand | Not Hardened | Not Ground | 000000000 | 00000 |
2.5 | 10:1 | 20 | 20° | 50 | 2 | 57.5 | 22 | 36 | 12 | 35 | 14 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
Round Bore—Bronze | |||||||||||||||||
2.5 | 20:1 | 20 | 20° | 50 | 1 | 57.5 | 22 | 36 | 12 | 35 | 14 | Bronze | Left Hand | Not Hardened | Not Ground | 000000000 | 000000 |
2.5 | 20:1 | 20 | 20° | 50 | 1 | 57.5 | 22 | 36 | 12 | 35 | 14 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
2.5 | 10:1 | 20 | 20° | 50 | 2 | 57.5 | 22 | 36 | 12 | 35 | 14 | Bronze | Left Hand | Not Hardened | Not Ground | 000000000 | 000000 |
2.5 | 10:1 | 20 | 20° | 50 | 2 | 57.5 | 22 | 36 | 12 | 35 | 14 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
Round Bore—Aluminum-Bronze | |||||||||||||||||
1 | 60:1 | 60 | 20° | 60 | 1 | 63 | 10 | 20 | 10 | 35 | 10 | Aluminum-Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
1.5 | 40:1 | 40 | 20° | 60 | 1 | 64.5 | 14 | 24 | 12 | 35 | 10 | Aluminum-Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
2 | 25:1 | 25 | 20° | 50 | 1 | 54 | 18 | 35 | 12 | 35 | 12 | Aluminum-Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
2.5 | 20:1 | 20 | 20° | 50 | 1 | 57.5 | 20 | 34 | 12 | 35 | 14 | Aluminum-Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
2.5 | 10:1 | 20 | 20° | 50 | 2 | 57.5 | 20 | 34 | 12 | 35 | 14 | Aluminum-Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
Metal Bevel Gears


A type of miter gear where one gear (sometimes called a pinion) is smaller than the other, bevel gears provide right-angle speed reduction at speed ratios ranging from 2:1 to 5:1. All are carbon steel for strength; they're compatible with plastic bevel gears. Teeth are not hardened so you can harden them to fit your application. Hardening a gear’s teeth increases its wear resistance.
A complete set consists of a gear and pinion (sold separately). For a gear and pinion to mesh correctly, they must have the same pressure angle, pitch/module, and face width. Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.
For technical drawings and 3-D models, click on a part number.


Hub | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Face Wd., mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Wd., mm | For Shaft Dia., mm | Mounting Distance (A), mm | Dia., mm | Wd., mm | Material | Each | |
Round Bore | ||||||||||||||
11 | 2 | 20° | 3:2 | 30 | 60 | 62 | 27 | 10 | 40 | 35 | 15 | Black-Oxide 1045 Carbon Steel | 00000000 | 000000 |



Hub | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Face Wd., mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Wd., mm | For Shaft Dia., mm | Mounting Distance (B), mm | Dia., mm | Wd., mm | Material | Each | |
Round Bore | ||||||||||||||
11 | 2 | 20° | 3:2 | 20 | 40 | 44 | 25 | 10 | 45 | 30 | 12 | Black-Oxide 1045 Carbon Steel | 00000000 | 000000 |
High-Power Metal Bevel Gears

Made from carbon steel with spiral teeth, these gears handle heavier loads at higher speeds than bevel gears with straight teeth because their teeth stay in contact longer. Their teeth engage gradually, which reduces vibration and noise, and they’re hardened for extra wear resistance. Use these gears to transmit motion at a right angle while changing shaft speed and torque. They reduce speeds at ratios between 1.5:1 and 4:1. Customize their machinable bore to fit them on a variety of shafts. They’re also known as spiral bevel gears.
A complete set consists of a gear and pinion (sold separately). The gear is larger than the pinion, but for them to mesh correctly, they must have the same pressure angle, module, and face width.
Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.
Gears with ground teeth are more precise than gears with teeth that are not ground.
For technical drawings and 3-D models, click on a part number.


Hub | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Face Width, mm | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (A), mm | Material | Diameter, mm | Width, mm | Each | |
Machinable Round Bore | |||||||||||||
11 | 20° | 1.5:1 | 30 | 60 | 61.36 | 26.8 | 12-25 | 40 | Black-Oxide 1045 Carbon Steel | 35 | 15 | 0000000 | 000000 |
Machinable Round Bore with Ground Teeth | |||||||||||||
11 | 20° | 1.5:1 | 30 | 60 | 61.6 | 26.6 | 12-25 | 40 | Black-Oxide 1045 Carbon Steel | 35 | 15 | 0000000 | 000000 |



Hub | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Face Width, mm | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (B), mm | Material | Diameter, mm | Width, mm | Each | |
Machinable Round Bore | |||||||||||||
11 | 20° | 1.5:1 | 20 | 40 | 43.49 | 25 | 10-20 | 45 | Black-Oxide 1045 Carbon Steel | 30 | 12 | 0000000 | 000000 |
Machinable Round Bore with Ground Teeth | |||||||||||||
11 | 20° | 1.5:1 | 20 | 40 | 43.55 | 24.9 | 10-18 | 45 | Black-Oxide 1045 Carbon Steel | 30 | 12 | 0000000 | 000000 |
Plastic Gears and Gear Racks—20° Pressure Angle
The current industry standard, these 20° pressure angle gears have thicker, stronger teeth than 14½° pressure angle gears. Made of plastic, they run quieter than metal gears and have good corrosion and chemical resistance. They’re also known as spur gears.
Combine gears with different numbers of teeth to change speed and torque in your assembly. Combine a gear and rack to convert rotary motion into linear motion.
For components to mesh correctly, they must have the same pressure angle and pitch/module.
Nylon gears can be operated without lubrication, so they’re commonly used in food-processing machines.
For technical drawings and 3-D models, click on a part number.



Hub | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Material | Fabrication | Color | Dia., mm | Wd., mm | Each | |
Round Bore | |||||||||||||
1 | 40 | 40 | 42 | 10 | 20 | 10 | Nylon Plastic | Machined | Blue | 35 | 10 | 00000000 | 000000 |
1 | 45 | 45 | 47 | 10 | 20 | 10 | Nylon Plastic | Machined | Blue | 35 | 10 | 00000000 | 00000 |
1 | 48 | 48 | 50 | 10 | 20 | 10 | Nylon Plastic | Machined | Blue | 35 | 10 | 00000000 | 00000 |
1 | 50 | 50 | 52 | 10 | 20 | 10 | Nylon Plastic | Machined | Blue | 35 | 10 | 00000000 | 00000 |
1 | 55 | 55 | 57 | 10 | 20 | 10 | Nylon Plastic | Machined | Blue | 35 | 10 | 00000000 | 00000 |
1 | 60 | 60 | 62 | 10 | 20 | 10 | Nylon Plastic | Machined | Blue | 35 | 10 | 00000000 | 00000 |
1 | 65 | 65 | 67 | 10 | 20 | 10 | Nylon Plastic | Machined | Blue | 35 | 10 | 00000000 | 00000 |
2 | 22 | 44 | 48 | 20 | 30 | 10 | Nylon Plastic | Machined | Blue | 35 | 10 | 00000000 | 00000 |
High-Power Plastic Gears





Transmitting loads at higher speeds than spur gears in environments where rusting and exposure to chemicals is a concern, these plastic gears have helical teeth, which stay in contact longer than straight teeth. They’re often called screw or crossed-helical gears. Made of plastic, they’re self-lubricating, so you can use them in food machinery as long as they don’t touch food or food-processing chemicals. Compared to metal gears, they make less noise, but are weaker, more likely to warp, and retain more heat.
For gears to mesh correctly, they must have the same pressure angle, helix angle, and module. Paired together—or even with metal gears—these gears transmit motion in a straight line or at a 90° angle. Use one left-hand and one right-hand gear for straight-line motion, or two gears with the same tooth direction for a 90° angle. To change speed and torque in your assembly, combine two gears with different numbers of teeth.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Number of Teeth | Helix Angle | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd, mm | For Shaft Dia., mm | Fabrication | Color | Dia., mm | Wd., mm | Each | |
Left Hand | |||||||||||||
Metric Crossed Gears—20° Pressure Angle | |||||||||||||
Round Bore—Nylon Plastic | |||||||||||||
2 | 15 | 45° | 42 | 46.4 | 20 | 35 | 10 | Machined | Blue | 35 | 15 | 0000000 | 000000 |
2.5 | 13 | 45° | 46 | 51 | 22 | 38 | 12 | Machined | Blue | 35 | 16 | 0000000 | 00000 |
Right Hand | |||||||||||||
Metric Crossed Gears—20° Pressure Angle | |||||||||||||
Round Bore—Nylon Plastic | |||||||||||||
2 | 15 | 45° | 42 | 46.4 | 20 | 35 | 10 | Machined | Blue | 35 | 15 | 0000000 | 00000 |
2.5 | 13 | 45° | 46 | 51 | 22 | 38 | 12 | Machined | Blue | 35 | 16 | 0000000 | 00000 |
Plastic Worm Gears



These plastic gears are lighter and quieter than metal gears—pair them with metal worms for lubrication-free operation. Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle and module.
Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.
Nylon gears are lightweight and stronger than acetal gears.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Speed Ratio | Number of Teeth | Pressure Angle | Gear Pitch Dia., mm | For Number of Thread Starts | OD, mm | Face Width, mm | Overall Width, mm | For Shaft Diameter, mm | Material | Fabrication | Color | Diameter, mm | Width, mm | For Thread Direction | Each | |
Round Bore | |||||||||||||||||
2.5 | 10:1 | 20 | 20° | 50 | 2 | 57.5 | 22 | 36 | 12 | Nylon Plastic | Molded | Blue | 35 | 14 | Right Hand | 00000000 | 000000 |
2.5 | 20:1 | 20 | 20° | 50 | 1 | 57.5 | 22 | 36 | 12 | Nylon Plastic | Molded | Blue | 35 | 14 | Right Hand | 00000000 | 00000 |
Plastic Bevel Gears

Reduce speeds where noise, corrosion, and frequent lubrication are a concern. Compared to metal gears, these nylon gears run more quietly, won't rust, and don't need to be lubricated. Because they’re self-lubricating, these bevel gears are commonly used in food machinery. They should not, however, come in direct contact with food or chemicals that will come in contact with food.
A complete set consists of a gear and pinion (sold separately). For a gear and pinion to mesh correctly, they must have the same pressure angle, module, and face width. Plastic pinions can also be mated with metal gears, and plastic gears with metal pinions.
Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.
For technical drawings and 3-D models, click on a part number.



Hub | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Face Width, mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (A), mm | Material | Fabrication | Color | Diameter, mm | Width, mm | Each | |
Round Bore | ||||||||||||||||
11 | 2 | 20° | 3:2 | 30 | 60 | 61.7 | 27 | 10 | 40 | Nylon Plastic | Molded | Blue | 35 | 15 | 00000000 | 000000 |



Hub | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Face Width, mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (B), mm | Material | Fabrication | Color | Diameter, mm | Width, mm | Each | |
Round Bore | ||||||||||||||||
11 | 2 | 20° | 3:2 | 20 | 40 | 44.2 | 25 | 10 | 45 | Nylon Plastic | Molded | Blue | 35 | 13 | 00000000 | 000000 |
Metal Ratcheting Gears

Compared to plastic gears, these metal ratcheting gears are better for high-load, high-speed, and heavy duty applications. Used to prevent unwanted motion in jacks, tie downs, clutches, and winches, ratchet gears have sloped teeth that allow motion in one direction and prevent it in the other.
Gears with hardened teeth are more wear resistant than gears with teeth that are not hardened.
For technical drawings and 3-D models, click on a part number.