Sprocket 12B-3 z=29 with hub
Available product promotions:
-
Weight9,95kg
-
UPC Code5907009388199
Product Description
Sprocket 12B-3 z=29, with hub
Triplex (three-strand) sprocket 12B-3 with hub, 29 teeth - designed for chain with a pitch of 3/4" (19.05 mm). 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
| Chain | 12B-3 (triplex (three-strand)) |
| Pitch | 3/4" / 19.05 mm |
| Number of teeth (z) | 29 |
| Outside diameter (De) | 184.1 mm |
| Pitch diameter (Dp) | 176.19 mm |
| Hub outer diameter (d) | 120 mm |
| Pilot bore diameter (D) | 20 mm |
| Overall hub height (A) | 70 mm |
| Weight | 9.95 kg |
| Material | C45E steel (EN 10083-1), unhardened teeth |
Frequently asked questions
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 new chain be fitted on an old, worn sprocket?
Never do this. An old, deformed sprocket has altered tooth geometry and will force drastic mechanical stretching on the new chain. The rule is "new chain - new sprocket" - only then will the drive achieve maximum service life.
In what cases are multi-strand sprockets used?
They are used to drive multi-strand chains in heavily loaded machines where there is no room for a wider sprocket with a larger pitch. Several strands distribute the load evenly, preventing premature chain breakage.
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.
Where is this product used?
12B-3 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
-
Weight9,95kg
-
UPC Code5907009388199