Steel Plain Bore Sprocket
for Single-Strand ANSI 40 Roller Chain, 21 Teeth
For Chain Type | Roller |
For Strand Type | Single |
Material | Steel |
For Roller Chain | |
Trade Number | 40 |
Standard | ANSI |
Pitch | 1/2" |
Number of Teeth | 21 |
OD | 3 5/8" |
Bore Type | Plain |
For Shaft Diameter | 5/8" |
For Maximum Shaft Diameter | 1 7/8" |
For Shaft Type | Round |
Hub Diameter | 2 3/4" |
ID | 5/8" |
Overall Width | 1" |
Sprocket Type | Drive |
Country of Origin | United States |
DFARS Compliance | Specialty Metals COTS-Exempt |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (11/07/2024, 242 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 848390.1000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | Yes |
Sprocket teeth mesh with your roller chain to smoothly transmit power. These U.S.-made sprockets have machined teeth for a more precise fit than flame-cut or punched teeth, allowing them to glide in and out of the chain to reduce wear and extend chain life.
Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.
Plain Bore—Plain bore sprockets give you options—machine a custom bore, weld, or press-fit them in place. They're sized to the minimum shaft diameter listed and are machinable up to the maximum.
Transmit motion
Align and center
Reduce friction
The information in this 3-D model is provided for reference only.