About Roller Chain and Sprockets
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Sprockets for Double-Strand ANSI Roller Chain
These sprockets come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size. All have hardened teeth for increased wear resistance and a long service life.
For technical drawings and 3-D models, click on a part number.
| Number of Teeth | For Shaft Dia. | For Max. Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Each | |
For ANSI 35-2 Roller Chain (3/8" Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 12 | 1/2" | 9/16" | 1.63" | 1 1/4" | 63/64" | Steel | 000000 | 000000 |
| 13 | 1/2" | 11/16" | 1.75" | 1 1/4" | 1 7/64" | Steel | 000000 | 00000 |
| 14 | 1/2" | 7/8" | 1.87" | 1 1/4" | 1 1/4" | Steel | 000000 | 00000 |
| 15 | 1/2" | 15/16" | 1.99" | 1 1/4" | 1 13/32" | Steel | 000000 | 00000 |
| 16 | 1/2" | 15/16" | 2.11" | 1 1/4" | 1 15/32" | Steel | 000000 | 00000 |
| 17 | 1/2" | 1 1/16" | 2.23" | 1 1/4" | 1 19/32" | Steel | 000000 | 00000 |
| 18 | 1/2" | 1 3/16" | 2.35" | 1 1/4" | 1 23/32" | Steel | 000000 | 00000 |
| 19 | 1/2" | 1 5/16" | 2.47" | 1 1/4" | 1 7/8" | Steel | 000000 | 00000 |
| 20 | 3/4" | 1 5/16" | 2.59" | 1 3/8" | 1 15/16" | Steel | 000000 | 00000 |
For ANSI 40-2 Roller Chain (1/2" Pitch) | ||||||||
| 11 | 1/2" | 3/4" | 2" | 1 1/2" | 1 7/16" | Steel | 0000000 | 00000 |
| 12 | 1/2" | 15/16" | 2.17" | 1 1/2" | 1 9/16" | Steel | 0000000 | 00000 |
| 13 | 1/2" | 1" | 2.33" | 1 1/2" | 1 1/2" | Steel | 0000000 | 00000 |
| 14 | 1/2" | 1 1/8" | 2.49" | 1 1/2" | 1 11/16" | Steel | 0000000 | 00000 |
| 15 | 1/2" | 1 1/4" | 2.65" | 1 1/2" | 1 13/16" | Steel | 0000000 | 00000 |
| 16 | 5/8" | 1 3/8" | 2.81" | 1 1/2" | 2" | Steel | 0000000 | 00000 |
| 17 | 5/8" | 1 7/16" | 2.98" | 1 1/2" | 2 1/8" | Steel | 0000000 | 00000 |
| 18 | 5/8" | 1 1/2" | 3.14" | 1 1/2" | 2 5/16" | Steel | 0000000 | 00000 |
| 19 | 5/8" | 1 3/4" | 3.3" | 1 1/2" | 2 1/2" | Steel | 0000000 | 00000 |
| 20 | 5/8" | 1 7/8" | 3.46" | 1 5/8" | 2 5/8" | Steel | 0000000 | 00000 |
For ANSI 50-2 Roller Chain (5/8" Pitch) | ||||||||
| 11 | 5/8" | 15/16" | 2.5" | 1 3/4" | 1 15/32" | Steel | 0000000 | 000000 |
| 12 | 5/8" | 1 1/8" | 2.71" | 1 3/4" | 1 11/16" | Steel | 0000000 | 000000 |
| 13 | 5/8" | 1 5/16" | 2.91" | 1 3/4" | 1 7/8" | Steel | 0000000 | 000000 |
| 14 | 5/8" | 1 3/8" | 3.11" | 1 3/4" | 2 1/16" | Steel | 0000000 | 000000 |
| 15 | 3/4" | 1 1/2" | 3.32" | 1 3/4" | 2 5/16" | Steel | 0000000 | 000000 |
| 16 | 3/4" | 1 3/4" | 3.52" | 1 3/4" | 2 1/2" | Steel | 0000000 | 000000 |
| 17 | 3/4" | 1 7/8" | 3.72" | 1 3/4" | 2 11/16" | Steel | 0000000 | 000000 |
| 18 | 3/4" | 1 15/16" | 3.92" | 1 3/4" | 2 7/8" | Steel | 0000000 | 000000 |
| 19 | 1" | 2 1/8" | 4.12" | 1 3/4" | 3 1/8" | Steel | 0000000 | 000000 |
| 20 | 1" | 2 1/4" | 4.32" | 1 3/4" | 3 1/4" | Steel | 0000000 | 000000 |
For ANSI 60-2 Roller Chain (3/4" Pitch) | ||||||||
| 11 | 1" | 1 1/4" | 3" | 2 1/8" | 1 13/16" | Steel | 0000000 | 00000 |
| 12 | 1" | 1 7/16" | 3.25" | 2 1/8" | 2 1/8" | Steel | 0000000 | 000000 |
| 13 | 1" | 1 1/2" | 3.49" | 2 1/8" | 2 1/4" | Steel | 0000000 | 000000 |
| 14 | 1" | 1 3/4" | 3.74" | 2 1/8" | 2 1/2" | Steel | 0000000 | 000000 |
| 15 | 1" | 1 7/8" | 3.98" | 2 1/8" | 2 13/16" | Steel | 0000000 | 000000 |
| 16 | 1" | 2" | 4.22" | 2 1/8" | 3" | Steel | 0000000 | 000000 |
| 17 | 1" | 2 1/4" | 4.46" | 2 1/8" | 3 1/4" | Steel | 0000000 | 000000 |
| 18 | 1" | 2 3/8" | 4.7" | 2 1/8" | 3 1/2" | Steel | 0000000 | 000000 |
| 19 | 1" | 2 1/2" | 4.95" | 2 1/8" | 3 11/16" | Steel | 0000000 | 000000 |
| 20 | 1" | 2 1/2" | 5.19" | 2 1/8" | 3 3/4" | Steel | 0000000 | 000000 |
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 |
| 16 | 12 | 20 | 54.38 | 30 | 37 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 17 | 12 | 24 | 57.39 | 30 | 40 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 18 | 12 | 25 | 60.41 | 30 | 43 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 19 | 12 | 28 | 63.43 | 30 | 46 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 20 | 12 | 30 | 66.44 | 30 | 49 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 21 | 12 | 30 | 69.46 | 30 | 52 | Steel | DIN 8187, ISO 606 | 0000000 | 00000 |
| 25 | 12 | 40 | 81.55 | 30 | 64 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 27 | 12 | 45 | 87.6 | 30 | 70 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 30 | 12 | 52 | 96.68 | 30 | 80 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
For ISO 08B-2 Roller Chain (12.7 mm Pitch) | |||||||||
| 12 | 12 | 23 | 56.44 | 35 | 34 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 16 | 14 | 33 | 72.46 | 35 | 50 | Steel | DIN 8187, ISO 606 | 0000000 | 000000 |
| 17 | 14 | 36 | 76.48 | 35 | 54 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 18 | 14 | 38 | 80.5 | 35 | 58 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 20 | 14 | 40 | 88.55 | 35 | 66 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 21 | 16 | 45 | 92.58 | 40 | 70 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 26 | 20 | 56 | 112.73 | 40 | 85 | Steel | DIN 8187, ISO 606 | 0000000 | 000000 |
| 30 | 20 | 64 | 128.86 | 40 | 100 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 36 | 20 | 73 | 153.08 | 40 | 110 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 38 | 20 | 73 | 161.16 | 45 | 110 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 42 | 20 | 73 | 177.31 | 45 | 110 | Steel | DIN 8187, ISO 606 | 0000000 | 000000 |
For ISO 12B-2 Roller Chain (19.05 mm Pitch) | |||||||||
| 15 | 16 | 45 | 103.37 | 50 | 71 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 17 | 20 | 54 | 115.42 | 50 | 83 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 19 | 20 | 62 | 127.49 | 50 | 95 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
Idler Sprockets for Double-Strand ANSI Roller Chain
Maintain constant tension on your drive with these sprockets that press against your chain to take up slack and reduce wear and vibration. They rotate freely on built-in bearings and are for use with roller chain tensioners. Bearings are double sealed to keep dirt out.
For technical drawings and 3-D models, click on a part number.
Bearing | ||||||||
|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Material | Type | Material | Each | |
For ANSI 35-2 Roller Chain (3/8" Pitch) | ||||||||
| 19 | 1/2" | 2.47" | 9/16" | Steel | Ball | Steel | 000000 | 0000000 |
| 19 | 5/8" | 2.47" | 9/16" | Steel | Ball | Steel | 000000 | 000000 |
For ANSI 40-2 Roller Chain (1/2" Pitch) | ||||||||
| 18 | 1/2" | 3.14" | 27/32" | Steel | Ball | Steel | 000000 | 000000 |
| 18 | 5/8" | 3.14" | 27/32" | Steel | Ball | Steel | 000000 | 000000 |
For ANSI 50-2 Roller Chain (5/8" Pitch) | ||||||||
| 17 | 1/2" | 3.72" | 1 3/64" | Steel | Ball | Steel | 000000 | 000000 |
| 17 | 5/8" | 3.72" | 1 3/64" | Steel | Ball | Steel | 000000 | 000000 |
For ANSI 60-2 Roller Chain (3/4" Pitch) | ||||||||
| 15 | 1/2" | 3.98" | 1 11/32" | Steel | Ball | Steel | 000000 | 000000 |
| 15 | 5/8" | 3.98" | 1 11/32" | Steel | Ball | Steel | 000000 | 000000 |
For ANSI 80-2 Roller Chain (1" Pitch) | ||||||||
| 12 | 3/4" | 4.33" | 1 23/32" | Steel | Ball | Steel | 000000 | 000000 |
Taper-Lock Bushing-Bore Sprockets for Double-Strand ANSI Roller Chain
Switch out the bushing to install these sprockets on shafts with different diameters—no machining necessary. They have two rows of teeth for use with double-strand ANSI roller chain. Choose a taper-lock bushing that matches your shaft’s diameter. The bushing fits flush inside the sprocket hub for a thin profile.
Sprockets with hardened teeth have increased wear resistance for a long service life.
For technical drawings and 3-D models, click on a part number.
| Number of Teeth | For Bushing Style | OD | Overall Wd. | Hub Dia. | Teeth Heat Treatment | Material | Each | |
For ANSI 40-2 Roller Chain (1/2" Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 15 | 1008 | 2.652" | 7/8" | __ | Hardened | Steel | 0000000 | 0000000 |
| 16 | 1008 | 2.814" | 7/8" | __ | Hardened | Steel | 0000000 | 000000 |
| 17 | 1008 | 2.975" | 7/8" | __ | Hardened | Steel | 0000000 | 000000 |
| 18 | 1210 | 3.135" | 1" | 2 5/16" | Hardened | Steel | 0000000 | 000000 |
| 19 | 1210 | 3.296" | 1" | 2 1/2" | Hardened | Steel | 0000000 | 000000 |
| 20 | 1610 | 3.457" | 1" | 2 5/8" | Hardened | Steel | 0000000 | 000000 |
| 21 | 1610 | 3.617" | 1" | 2 3/4" | Hardened | Steel | 0000000 | 000000 |
| 25 | 2012 | 4.258" | 1 1/4" | 3 13/32" | Hardened | Steel | 0000000 | 000000 |
| 30 | 2012 | 5.057" | 1 1/4" | 4 1/4" | Not Hardened | Steel | 0000000 | 000000 |
| 36 | 2012 | 6.015" | 1 1/4" | 5 5/32" | Not Hardened | Steel | 0000000 | 000000 |
For ANSI 50-2 Roller Chain (5/8" Pitch) | ||||||||
| 14 | 1008 | 3.113" | 7/8" | __ | Hardened | Steel | 0000000 | 000000 |
| 15 | 1210 | 3.315" | 1" | __ | Hardened | Steel | 0000000 | 000000 |
| 16 | 1210 | 3.517" | 1" | __ | Hardened | Steel | 0000000 | 000000 |
| 17 | 1610 | 3.719" | 1" | __ | Hardened | Steel | 0000000 | 000000 |
| 18 | 1610 | 3.92" | 1" | __ | Hardened | Steel | 0000000 | 000000 |
| 19 | 1610 | 4.12" | 1" | __ | Hardened | Steel | 0000000 | 000000 |
| 20 | 2012 | 4.321" | 1 1/4" | 3 1/4" | Hardened | Steel | 0000000 | 000000 |
| 21 | 2012 | 4.522" | 1 1/4" | 3 1/2" | Hardened | Steel | 0000000 | 000000 |
| 25 | 2012 | 5.322" | 1 1/4" | 4 9/32" | Hardened | Steel | 0000000 | 000000 |
| 30 | 2517 | 6.321" | 1 3/4" | 5 9/32" | Not Hardened | Steel | 0000000 | 000000 |
| 36 | 2517 | 7.519" | 1 3/4" | 4 1/4" | Not Hardened | Steel | 0000000 | 000000 |
For ANSI 60-2 Roller Chain (3/4" Pitch) | ||||||||
| 13 | 1215 | 3.493" | 1 1/2" | 2 1/4" | Hardened | Steel | 0000000 | 000000 |
| 14 | 1215 | 3.736" | 1 1/2" | 2 1/2" | Hardened | Steel | 0000000 | 000000 |
| 15 | 1615 | 3.979" | 1 1/2" | 2 13/16" | Hardened | Steel | 0000000 | 000000 |
| 16 | 1615 | 4.221" | 1 1/2" | 3" | Hardened | Steel | 0000000 | 000000 |
| 17 | 1615 | 4.462" | 1 1/2" | 3 1/4" | Hardened | Steel | 0000000 | 000000 |
| 18 | 2012 | 4.704" | 1 1/4" | __ | Hardened | Steel | 0000000 | 000000 |
| 19 | 2012 | 4.945" | 1 1/4" | __ | Hardened | Steel | 0000000 | 000000 |
| 20 | 2517 | 5.185" | 1 3/4" | 3 15/16" | Hardened | Steel | 0000000 | 000000 |
| 21 | 2517 | 5.426" | 1 3/4" | 4 3/16" | Hardened | Steel | 0000000 | 000000 |
| 25 | 2517 | 6.387" | 1 3/4" | 5 5/32" | Hardened | Steel | 0000000 | 000000 |
| 30 | 2517 | 7.586" | 1 3/4" | 6 11/32" | Not Hardened | Steel | 0000000 | 000000 |
| 36 | 2517 | 9.022" | 1 3/4" | 4 1/4" | Not Hardened | Steel | 0000000 | 000000 |
ANSI Roller Chain Spring Clips
Replace lost or damaged spring clips to secure the pins on your connecting links. Face the opening away from the direction of travel to maintain a snug fit.
For technical drawings and 3-D models, click on a part number.