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When a worn or mismatched sprocket is causing chain skip, premature wear, or noisy drivetrain operation, the fix starts with a correctly matched component. This 08B simplex roller chain taper lock sprocket is designed for engineers, machine builders, and serious DIYers who need a reliable, repeatable drive solution without the guesswork of interference-fit hubs.
Each sprocket is machined to suit 08B (1/2" pitch) simplex roller chain and features a taper lock bore system for fast, tool-assisted hub mounting and removal. The desk wheel (plate wheel) profile keeps weight low while maintaining full tooth engagement. Available in tooth counts from 20T to 30T, with outer diameters typically ranging from approximately 40 mm (1.57 in) at 20T to approximately 62 mm (2.44 in) at 30T — exact dimensions vary by variant.
Typical applications include light conveyor drives, packaging machinery, agricultural equipment power take-offs, and custom DIY chain drive builds where a taper lock sprocket for 08B chain is required for quick hub changes or multi-shaft setups.
| Chain Standard | 08B Simplex (ISO 606 / BS 228) |
|---|---|
| Chain Pitch | 1/2" (12.7 mm) |
| Chain Type | Simplex (Single Strand) |
| Tooth Count (T) | 20T, 21T, 22T, 23T, 24T, 25T, 26T, 27T, 28T, 29T, 30T |
| Sprocket Style | Desk Wheel (Plate Wheel) |
| Hub Type | Taper Lock (Bushing Not Included) |
| Bore Diameter | See variant options |
| Outer Diameter | See variant options |
| Hub Diameter | See variant options |
| Material | Carbon Steel |
| Surface Finish | See variant options |
| Weight | See variant options |
Your tooth count determines the drive ratio between the driver and driven sprocket. Divide the driven sprocket teeth by the driver sprocket teeth to get the reduction ratio. For example, a 20T driver paired with a 30T driven sprocket gives a 1.5:1 reduction. Match your required output speed and torque to select the correct pairing. If you are replacing an existing sprocket, count the teeth on the worn part or check your machine's documentation.
The compatible taper lock bushing size depends on the specific tooth count variant. Please check the variant detail page or contact us to confirm which bushing series (e.g., 1008, 1108, 1210) fits your selected sprocket. Bushings are sold separately and allow you to match the bore to your exact shaft diameter.
No. This is a simplex (single-strand) sprocket designed exclusively for 08B simplex roller chain. Using it with duplex or triplex chain will result in misalignment and accelerated wear. If you need a duplex or triplex sprocket for 08B chain, please contact us for availability.
The sprocket features a surface treatment that provides resistance to light moisture and oxidation in typical workshop or light industrial conditions. For continuously wet, marine, or chemically aggressive environments, we recommend pairing with a corrosion-resistant chain and applying a suitable chain lubricant. Contact us to confirm the specific finish on your selected variant.
No. The price covers the sprocket body only. Taper lock bushings are sold separately. You will need to select a bushing that matches both the sprocket's taper lock bore series and your shaft diameter. This design allows you to reuse the sprocket body across different shaft sizes by simply changing the bushing.
Yes. Taper lock sprockets can be used on either the driver or driven shaft. For a 1:1 ratio drive, use the same tooth count on both shafts. For a speed reduction or increase, select different tooth counts for each shaft. Ensure both sprockets are aligned in the same plane and that chain tension is correctly set after installation.
A desk wheel (plate wheel) sprocket has a flat plate body with no extended hub projection, making it lighter and more compact. A hub sprocket has an extended cylindrical hub that provides a longer shaft engagement length, which is better suited for high-torque or cantilevered shaft applications. For most light-to-medium conveyor and machinery drives, the desk wheel design is sufficient and saves weight.
