Sprocket 10B-2 z=20 with hub, hardened
Available product promotions:
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Weight2,1kg
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UPC Code5908453532770
Product Description
Sprocket 10B-2 z=20, hardened hub
Sprocket 10B-2 with hardened hub, 20 teeth, duplex - a product matched to a chain with a pitch of 15.875 mm (5/8"). As a European manufacturer, Ozdowski supplies the sprocket in C45E steel (EN 10083-1), in accordance with DIN 8187 / ISO 606 - the teeth are induction hardened (45-55 HRC), while the hub remains soft and easy to machine.
Technical data
| Chain | 10B-2 (duplex) |
| Pitch | 5/8" / 15.875 mm |
| Number of teeth (z) | 20 |
| Outside diameter (De) | 108.4 mm |
| Pitch diameter (Dp) | 101.49 mm |
| Hub outer diameter (d) | 84 mm |
| Pilot bore diameter (D) | 16 mm |
| Overall hub height (A) | 45 mm |
| Weight | 2.1 kg |
| Material | C45E steel (EN 10083-1), teeth induction hardened 45-55 HRC |
Frequently asked questions
How do you calculate the pitch circle diameter of a sprocket?
The pitch circle diameter (Dp) is, in simplified terms, the line along which the chain rollers roll. It is calculated using the formula: pitch divided by sine (180° / number of teeth).
How do you correctly align sprockets during installation?
The driving and driven sprockets must be in one perfect line. You can use a long steel straightedge placed against the faces of both sprockets or a professional laser alignment tool. Even a slight angular deviation will quickly destroy the chain.
How do I select a sprocket with bearing for a tensioning system?
An idler sprocket (with built-in bearing) is selected according to the pitch of the working chain and mounted on the slack side (not on the tight side). It is important that the bearing is protected against dust, especially in agricultural machinery.
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?
10B-2 sprockets operate in the drives of construction machinery, goods lifts, aggregate conveyors and woodworking machines - wherever tooth durability under heavy load 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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Weight2,1kg
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UPC Code5908453532770