About Roller Chain and Sprockets
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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 ISO 06B Roller Chain (9.53 mm Pitch) | |||||||||
---|---|---|---|---|---|---|---|---|---|
11 | 8 | 14 | 37 | 25 | 23 | Steel | DIN 8187, ISO 606 | 0000000 | 000000 |
12 | 8 | 16 | 41.91 | 25 | 26 | Steel | DIN 8187, ISO 606 | 000000 | 00000 |
13 | 10 | 18 | 43 | 25 | 29 | Steel | DIN 8187, ISO 606 | 0000000 | 00000 |
14 | 10 | 16 | 48.01 | 25 | 31 | Steel | DIN 8187, ISO 606 | 000000 | 00000 |
15 | 10 | 20 | 51.05 | 25 | 34 | Steel | DIN 8187, ISO 606 | 000000 | 00000 |
16 | 10 | 22 | 53.85 | 25 | 37 | Steel | DIN 8187, ISO 606 | 000000 | 00000 |
For ISO 08B Roller Chain (12.7 mm Pitch) | |||||||||
9 | 10 | 15 | 43.4 | 25 | 21 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
10 | 10 | 20 | 47.4 | 25 | 26 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
11 | 10 | 22 | 51.4 | 25 | 30 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
For ISO 10B Roller Chain (15.88 mm Pitch) | |||||||||
8 | 12 | 16 | 51.17 | 25 | 22 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
10 | 12 | 22 | 61.06 | 25 | 32 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
11 | 12 | 25 | 66.03 | 25 | 37 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
12 | 12 | 32 | 71.02 | 25 | 43 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
13 | 12 | 33 | 76.02 | 25 | 48 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
14 | 12 | 36 | 81.03 | 25 | 53 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
15 | 12 | 38 | 86.04 | 25 | 57 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
17 | 12 | 47 | 96.08 | 25 | 67 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
18 | 12 | 48 | 101.1 | 25 | 73 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
19 | 16 | 51 | 106.13 | 25 | 76 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
20 | 16 | 51 | 111.16 | 25 | 76 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
21 | 16 | 51 | 114.81 | 25 | 76 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
Machinable-Bore Corrosion-Resistant Sprockets for Metric Roller Chain
Machine the center of these sprockets to fit the exact dimensions of your shaft. They come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size. The teeth are sized to fit into metric ISO roller chain. Made from stainless steel, they won’t corrode from humidity or frequent washdowns. The extended hub makes these sprockets more stable and more durable than sprockets with flat hubs. They meet ISO 606 (formerly DIN 8187), which is an international standard for dimensions and materials.
For technical drawings and 3-D models, click on a part number.
Sprockets for Double-Strand Metric Roller Chain
The double row of teeth on these sprockets are designed to fit into metric ISO double-strand roller chain. They have an unfinished bore that’s machined to the shaft diameter size listed. Machine them to fit any shaft up to the maximum shaft diameter size. The extended hub makes these sprockets more stable and more durable than flat sprockets. They meet ISO 606 (formerly DIN 8187), which is an international standard for sprocket and roller chain dimensions and materials.
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 ISO 06B-2 Roller Chain (9.53 mm Pitch) | |||||||||
---|---|---|---|---|---|---|---|---|---|
12 | 10 | 16 | 42.36 | 25 | 25 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
14 | 10 | 18 | 48.36 | 25 | 31 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
15 | 10 | 20 | 51.37 | 25 | 34 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
Taper-Lock Bushing-Bore Sprockets for Metric Roller Chain
While their teeth fit into metric ISO roller chain, these sprockets use taper-lock bushings to grip shafts. That means you can switch to a different diameter shaft by changing the bushing instead of machining the sprocket. Bushings mount flush inside these sprockets; secure them in place by tightening the set screws included with the bushings. These sprockets have an extended hub that makes them more stable and durable than flat sprockets. All meet ISO 606 (formerly DIN 8187), which is an international standard for sprocket and roller chain dimensions and materials.
For technical drawings and 3-D models, click on a part number.
Number of Teeth | For Bushing Style | OD, mm | Overall Wd., mm | Hub Dia., mm | Teeth Heat Treatment | Material | Specifications Met | Each | |
For ISO 06B Roller Chain (9.53 mm Pitch) | |||||||||
---|---|---|---|---|---|---|---|---|---|
22 | 1210 | 72.14 | 25 | 60.33 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
26 | 1610 | 84.07 | 25 | 73.03 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
28 | 1610 | 90.17 | 25 | 73.03 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
For ISO 08B Roller Chain (12.7 mm Pitch) | |||||||||
17 | 1210 | 75.95 | 25 | 60 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
18 | 1210 | 80.01 | 25 | 62 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
21 | 1610 | 91.95 | 25 | 70 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
24 | 1610 | 104.14 | 25 | 82 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
25 | 1610 | 108.2 | 25 | 82 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
32 | 1610 | 136.4 | 25 | 76 | __ | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
38 | 1610 | 160.53 | 25 | 76 | __ | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
For ISO 10B Roller Chain (15.88 mm Pitch) | |||||||||
17 | 1610 | 94.49 | 25 | 70.64 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
18 | 1610 | 99.57 | 25 | 70.64 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
19 | 1610 | 104.65 | 25 | 76.2 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
For ISO 12B Roller Chain (19.05 mm Pitch) | |||||||||
13 | 1210 | 89.92 | 25 | 62.69 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
15 | 1610 | 101.85 | 25 | 70.64 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
19 | 1610 | 125.98 | 25 | 82.55 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
Taper-Lock Bushings
Mount these hubless bushings flush into your sprocket or pulley for a slim profile with no protruding screws. They are for use with taper-lock sprockets of the same bushing style. As you tighten the included set screws, the bushing grips the shaft and pulls it into your sprocket or pulley.
For technical drawings and 3-D models, click on a part number.
Keyway | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Overall Wd. | Wd. | Dp. | Taper | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
1210 Style Bushing | |||||||||
14mm | 25mm | 5mm | 2.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 000000 |
16mm | 25mm | 5mm | 2.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
18mm | 25mm | 6mm | 2.8mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
20mm | 25mm | 6mm | 2.8mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
22mm | 25mm | 6mm | 2.8mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
24mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
25mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
28mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
30mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
32mm | 25mm | 10mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
1610 Style Bushing | |||||||||
14mm | 25mm | 5mm | 2.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
16mm | 25mm | 5mm | 2.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
18mm | 25mm | 6mm | 2.8mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
19mm | 25mm | 6mm | 2.8mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
20mm | 25mm | 6mm | 2.8mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
22mm | 25mm | 6mm | 2.8mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
24mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
25mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
28mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
30mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
32mm | 25mm | 10mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
35mm | 25mm | 10mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
38mm | 25mm | 10mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 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. Gears with a clamping bore have a built-in clamp that securely grips shafts without marring them. Use the included clamping screw to tighten or loosen the grip.
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 | Clamping Screw Thread Size | Each | |
Round Bore | ||||||||||||||||
1.5 | 17 | 25.5 | 28.5 | 15 | 25 | 8 | Black-Oxide 1045 Carbon Steel | Not Hardened | 21 | 10 | __ | __ | __ | __ | 00000000 | 000000 |
1.5 | 25 | 37.5 | 40.5 | 15 | 25 | 8 | Black-Oxide 1045 Carbon Steel | Not Hardened | 30 | 10 | __ | __ | __ | __ | 00000000 | 00000 |
1.5 | 30 | 45 | 48 | 15 | 25 | 10 | Black-Oxide 1045 Carbon Steel | Not Hardened | 38 | 10 | __ | __ | __ | __ | 00000000 | 00000 |
1.5 | 42 | 63 | 66 | 15 | 25 | 12 | Black-Oxide 1045 Carbon Steel | Not Hardened | 45 | 10 | __ | __ | __ | __ | 00000000 | 00000 |
1.5 | 48 | 72 | 75 | 15 | 25 | 12 | Black-Oxide 1045 Carbon Steel | Not Hardened | 45 | 10 | __ | __ | __ | __ | 0000000 | 00000 |
1.5 | 50 | 75 | 78 | 15 | 25 | 12 | Black-Oxide 1045 Carbon Steel | Not Hardened | 50 | 10 | __ | __ | __ | __ | 00000000 | 00000 |
1.5 | 80 | 120 | 123 | 15 | 25 | 15 | Black-Oxide 1045 Carbon Steel | Not Hardened | 60 | 10 | __ | __ | __ | __ | 00000000 | 00000 |
Round Bore with Set Screw | ||||||||||||||||
1.5 | 16 | 24 | 27 | 15 | 25 | 8 | Black-Oxide 1045 Carbon Steel | Not Hardened | 20 | 10 | M5 | __ | __ | __ | 00000000 | 00000 |
1.5 | 18 | 27 | 30 | 15 | 25 | 8 | Black-Oxide 1045 Carbon Steel | Not Hardened | 22 | 10 | M4 | __ | __ | __ | 0000000 | 00000 |
1.5 | 20 | 30 | 33 | 15 | 25 | 6 | Black-Oxide 1045 Carbon Steel | Not Hardened | 24 | 10 | M4 | __ | __ | __ | 00000000 | 00000 |
1.5 | 24 | 36 | 39 | 15 | 25 | 8 | Black-Oxide 1045 Carbon Steel | Not Hardened | 28 | 10 | M4 | __ | __ | __ | 0000000 | 00000 |
Keyed Bore with Set Screw | ||||||||||||||||
1.5 | 36 | 54 | 57 | 15 | 25 | 12 | Black-Oxide 1045 Carbon Steel | Not Hardened | 40 | 10 | M4 | 4 | 1.8 | __ | 0000000 | 00000 |
1.5 | 40 | 60 | 63 | 15 | 25 | 12 | Black-Oxide 1045 Carbon Steel | Not Hardened | 40 | 10 | M4 | 4 | 1.8 | __ | 00000000 | 00000 |
Clamping Bore with Clamping Screw | ||||||||||||||||
1 | 14 | 14 | 16 | 8 | 25 | 6 | 303 Stainless Steel | Not Hardened | 17 | 10 | __ | __ | __ | M3 | 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.
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. Made from carbon steel, these gears are strong, but not as strong as alloy steel gears.
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 | ||||||||||||
1.5 | 10 | 45° | 21 | 24.21 | 15 | 25 | 8 | Not Hardened | 16 | 10 | 00000000 | 000000 |
1.5 | 13 | 45° | 27 | 30.58 | 15 | 25 | 10 | Not Hardened | 23 | 10 | 00000000 | 00000 |
1.5 | 26 | 45° | 55 | 58.15 | 15 | 25 | 12 | Not Hardened | 40 | 10 | 00000000 | 00000 |
Right Hand | ||||||||||||
Round Bore—Black-Oxide 1045 Carbon Steel | ||||||||||||
1.5 | 10 | 45° | 21 | 24.21 | 15 | 25 | 8 | Not Hardened | 16 | 10 | 00000000 | 00000 |
1.5 | 13 | 45° | 27 | 30.58 | 15 | 25 | 10 | Not Hardened | 23 | 10 | 00000000 | 00000 |
1.5 | 26 | 45° | 55 | 58.15 | 15 | 25 | 12 | Not Hardened | 40 | 10 | 00000000 | 00000 |
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 | |||||||||||||
1.5 | 15 | 22.5 | 25.5 | 15 | 25 | 8 | Nylon Plastic | Machined | Blue | 18 | 10 | 00000000 | 000000 |
1.5 | 16 | 24 | 27 | 15 | 25 | 8 | Nylon Plastic | Machined | Blue | 20 | 10 | 00000000 | 00000 |
1.5 | 20 | 30 | 33 | 15 | 25 | 8 | Nylon Plastic | Machined | Blue | 24 | 10 | 00000000 | 00000 |
1.5 | 22 | 33 | 36 | 15 | 25 | 8 | Nylon Plastic | Machined | Blue | 26 | 10 | 00000000 | 00000 |
1.5 | 30 | 45 | 48 | 15 | 25 | 8 | Nylon Plastic | Machined | Blue | 38 | 10 | 00000000 | 00000 |
1.5 | 32 | 48 | 51 | 15 | 25 | 8 | Nylon Plastic | Machined | Blue | 40 | 10 | 00000000 | 00000 |
1.5 | 50 | 75 | 78 | 15 | 25 | 10 | Nylon Plastic | Machined | Blue | 45 | 10 | 00000000 | 00000 |
1.5 | 80 | 120 | 123 | 15 | 25 | 12 | Nylon Plastic | Machined | Blue | 55 | 10 | 00000000 | 000000 |
1.5 | 100 | 150 | 153 | 15 | 25 | 12 | Nylon Plastic | Machined | Blue | 60 | 10 | 00000000 | 000000 |
Plastic Miter Gears
Connect two shafts at a right angle without changing shaft speed or torque. Made of plastic, these gears run quieter than metal gears and have good corrosion and chemical resistance.
For two gears to mesh correctly, they must have the same pressure angle, pitch/module, and number of teeth.
Nylon gears are self-lubricating, so they’re often used in food machinery. However, they’re not approved for direct contact with food or chemicals that will come into contact with food.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Number of Teeth | Pressure Angle | Gear Pitch Dia. | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Mounting Distance, mm | Material | Fabrication | Color | Dia., mm | Wd., mm | Each | |
Round Bore | |||||||||||||||
2 | 20 | 20° | 40mm | 42.8 | 10 | 25 | 10 | 37 | Nylon Plastic | Molded | Blue | 34 | 14 | 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.
Face Wd. | Number of Teeth | OD | For Shaft Dia. | Mounting Distance | Material | Teeth Heat Treatment | Overall Wd. | Each | |
Round Bore | |||||||||
---|---|---|---|---|---|---|---|---|---|
25mm | 30 | 120mm | 20mm | 95.7mm | 1045 Carbon Steel | Hardened | 25 mm | 0000000 | 0000000 |