Sprocket 16B-3 z=39 with hub

Product Description

Sprocket 16B-3 z=39, with hub

Sprocket 16B-3 with hub, 39 teeth, triplex (three-strand) - a product matched to chain with a pitch of 25.4 mm (1"). The material is C45E carbon steel (EN 10083-1), and the teeth remain unhardened (without induction hardening) - in accordance with DIN 8187 / ISO 606; this version is easier to machine over the entire depth of the sprocket.

Technical data

Frequently asked questions

How do sprockets for roller chains differ from sprockets for toothed chains (silent chain)?

A sprocket for roller chain has a rounded tooth root matched to the chain roller (profile according to DIN 8187), whereas a sprocket for toothed chain (silent chain) has a flat, trapezoidal tooth profile that engages the chain plates instead of rollers. These two systems are not interchangeable.

Can a sprocket with a technological bore be installed without additional machining?

No - the technological bore is deliberately too small to fit a typical shaft. It must be bored on a lathe to the required diameter and, if necessary, a keyway cut according to the requirements of the specific machine.

Why are cast sprockets less precise than turned and milled ones?

Cheap castings have a rough tooth surface, hidden air bubbles and slight deformations. CNC-turned and milled sprockets mean a smooth working surface, perfect alignment and safety for the most expensive machines.

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?

16B-3 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.