Sprocket 16B-2 z=33 with hub, hardened
Available product promotions:
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Weight21kg
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UPC Code5908453533876
Product Description
Sprocket 16B-2 z=33, hardened hub
Duplex sprocket 16B-2 with hardened hub, 33 teeth - dedicated to a chain with a pitch of 1" (25.4 mm). The material is carbon steel C45E (EN 10083-1), and the teeth undergo induction hardening to 45-55 HRC - in accordance with DIN 8187 / ISO 606; the hub retains a lower core hardness, so it can be machined safely.
Technical data
| Chain | 16B-2 (duplex) |
| Pitch | 1" / 25.4 mm |
| Number of teeth (z) | 33 |
| Outside diameter (De) | 278.5 mm |
| Pitch diameter (Dp) | 267.21 mm |
| Hub outer diameter (d) | 140* mm |
| Pilot bore diameter (D) | 25 mm |
| Overall hub height (A) | 70 mm |
| Weight | 21 kg |
| Material | C45E steel (EN 10083-1), teeth induction hardened 45-55 HRC |
Frequently asked questions
What does the pitch of a sprocket mean and how can it be checked?
The pitch of a sprocket corresponds to the chain pitch - it is the theoretical distance between the centres of adjacent teeth on the pitch circle. The easiest way to check it is to place a section of matching chain on the sprocket - it should sit perfectly, without tension.
What is the relationship between the number of teeth of a sprocket and the rotational speed of the drive?
This is the basic principle of the transmission ratio. If there is a small sprocket on the motor (drive) and a large one on the machine, the machine will turn more slowly but gain proportionally greater torque (force).
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.
Is a duplex sprocket the same as a tandem sprocket (for two single chains)?
No, even though they look very similar. A tandem sprocket is also a single, monolithic sprocket, but with a different (wider) spacing of the toothed rims - designed specifically for two independent simplex chains running in parallel. This duplex sprocket has a rim spacing matched to a single duplex chain, in which both strands are integrated with each other. Using a duplex sprocket for two single chains is a mistake - the spacing is too narrow and the chains will rub against each other, which leads to accelerated wear and, in extreme cases, to serious drive failure.
Where is this product used?
16B-2 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.
Product Features
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Weight21kg
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UPC Code5908453533876