Steel Stock Bore Sprocket with 21 Teeth
This steel stock bore sprocket is designed with 21 teeth for efficient power transfer. It is compatible with 100/1.25" chains and features a B style configuration.



Technical Specifications
Product Overview
Industrial Steel Sprocket
This 100B21 steel stock bore sprocket is engineered for reliable power transmission in demanding industrial environments. Featuring 21 precision-cut teeth and a robust B-style configuration, this component is designed to accommodate 100/1.25" chain systems. Its welded construction and versatile bore capacity make it a durable choice for heavy-duty machinery applications.
Technical Specifications
- Number of Teeth
- 21
- Chain Pitch
- 1.25 inch
- Bore Size Range
- 1.313" to 3"
- Hub OD
- 4.5 in
- Length Through Bore
- 2 in
- Tooth Thickness
- 0.692 in
- Pitch Diameter
- 8.387 in
Construction & Features
- Style
- B Style (Hub Extension)
- Material
- Steel
- Hardened Teeth
- No
- Construction
- Welded
Condition
- Condition Notes
- Not in original boxMinor scratchesGreat condition



