Sprocket 12B-1 z=8 with hub
Available product promotions:
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Weight0,22kg
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UPC Code5908453541031
Product Description
Sprocket 12B-1 z=8, with hub
Simplex sprocket 12B-1 with hub, 8 teeth - designed for chain with a pitch of 3/4" (19.05 mm). The sprocket complies with DIN 8187 / ISO 606 and is made of C45E steel (EN 10083-1); the teeth are not hardened, which lowers the cost of the sprocket and makes it easier to machine (e.g. deep boring of the hub) throughout the entire volume of the material.
Technical data
| Chain | 12B-1 (simplex) |
| Pitch | 3/4" / 19.05 mm |
| Number of teeth (z) | 8 |
| Outside diameter (De) | 57.6 mm |
| Pitch diameter (Dp) | 49.78 mm |
| Hub outer diameter (d) | 31 mm |
| Pilot bore diameter (D) | 12 mm |
| Overall hub height (A) | 30 mm |
| Weight | 0.22 kg |
| Material | C45E steel (EN 10083-1), unhardened teeth |
Frequently asked questions
Does a larger number of teeth always mean a longer service life for the sprocket?
Largely yes - the more teeth are engaged, the lower the load on each individual tooth, and the chain runs over a larger wrap angle, which reduces dynamic impacts. Very small sprockets (with fewer than fifteen or so teeth) wear the fastest and are best avoided if the drive design allows.
How long can a sprocket be kept in storage without losing its properties?
A properly preserved sprocket (dried, coated with grease or anti-corrosion oil, stored in a dry room) can be kept in storage for many years without any loss of its mechanical parameters. The only risk is surface corrosion due to improper storage - it does not affect the tooth geometry, but it is advisable to clean the sprocket and preserve it again before installation.
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.
Do you offer sprockets made to custom dimensions, outside the catalogue?
Yes, in addition to catalogue items we also manufacture sprockets to individual drawings or customer requirements - please contact the sales department and provide the required parameters (pitch, number of teeth, hub dimensions, material).
Where is this product used?
12B-1 sprockets operate in drives of construction machinery, goods lifts, aggregate conveyors and woodworking machines - wherever tooth durability under 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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Weight0,22kg
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UPC Code5908453541031