Sprocket 20B-1 z=76 with hub

Product Description

Sprocket 20B-1 z=76, with hub

The sprocket 20B-1 shown is a simplex sprocket with 76 teeth, made with a hub, for chain with a pitch of 1 1/4" / 31.75 mm. Manufactured in accordance with DIN 8187 / ISO 606 from C45E structural steel (EN 10083-1), without tooth hardening - as a Polish manufacturer, Ozdowski supplies an economical version that is fully dimensionally interchangeable with the hardened variant of the same pitch.

Technical data

Frequently asked questions

How can you check that the sprocket meshes correctly with the chain when the machine is started for the first time?

At low speed (e.g. turning the shaft by hand), it is worth observing whether the chain enters and leaves the teeth smoothly around the entire circumference of the sprocket, without catching or jumping. Any irregularities in operation at this stage usually indicate an alignment error rather than a defect in the sprocket itself.

Will a sprocket from another manufacturer work properly with the chain I already have?

If the sprocket is made to the same standard (DIN 8187/ISO 606) and has the same pitch and number of strands, it should work properly with a chain of another brand - that is the purpose of standardisation in this industry. However, differences between manufacturers may concern, for example, hub dimensions or material, so these parameters are worth checking separately.

Is it possible to order a single trial piece of the sprocket before placing a larger order?

Yes, catalogue items can be ordered in any quantity, including a single piece for testing or verification before a larger series order.

How can a sprocket and chain be protected against corrosion during storage?

After cleaning off any dirt, it is advisable to apply a layer of preservative grease or anti-corrosion oil and store the sprocket in a dry place not exposed to condensation. In the steel version (without coating), even a short damp break in the workshop can cause a rusty film on the tooth surfaces.

Where is this product used?

20B-1 sprockets are used in industrial drive transmissions: conveyors, feeders, packaging machines and production lines where precise, repeatable torque transmission matters.

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.