Sprocket 20B-3 z=32 with hub

Product Description

Sprocket 20B-3 z=32, with hub

Sprocket 20B-3 with hub, 32 teeth, triplex (three-strand) - a product matched to chain with a pitch of 31.75 mm (1 1/4"). Compliance with DIN 8187 / ISO 606 guarantees full interchangeability with a chain of the same pitch; the sprocket is made of C45E steel (EN 10083-1) in a non-hardened version - the standard choice for applications with moderate and medium load.

Technical data

Frequently asked questions

If I order today, when will I receive the product?

Information on the lead time is given next to the product's stock level, above the price. If the sprocket is available in the main warehouse, we ship it no later than the next working day.

What does uneven, one-sided wear of the sprocket teeth indicate?

This usually indicates misalignment between the driving and driven sprockets or that the chain is skewed relative to the sprocket. It is worth checking the alignment of both sprockets and the condition of the shaft bearings - over time, one-sided wear causes the chain to jump off the tooth.

How does rotational speed affect the selection of the minimum number of teeth of a sprocket in the system?

At higher rotational speeds, a larger minimum number of teeth on the smallest sprocket in the system is recommended to reduce chain vibration and impacts resulting from the so-called polygon effect. With very small sprockets (e.g. 9-11 teeth) and high speeds, wear and vibration levels increase significantly faster than with larger sprockets.

What does the marking "z=X" on a sprocket mean and why is it so important when ordering?

"z" is the number of teeth of the sprocket - together with the pitch and the number of chain strands, it unambiguously defines the sprocket geometry (pitch circle and outside diameter). Ordering a sprocket with the wrong "z" usually means that it will not work correctly with the second sprocket already in the machine, and a different transmission ratio than intended will result.

Where is this product used?

Applications include drives in the food industry, packaging machines, sorting lines and agricultural harvesting machines, where the sprocket operates seasonally but under full load.

When placing your order, please check the current stock level of this gear - the lead time depends on it and is clearly stated according to the quantity available in the given warehouse.

Product photos are for illustrative purposes only.