Spur gear module 4 z=48 with hub
Available product promotions:
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Weight9,5kg
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UPC Code5908453537737
Product Description
Spur gear module 4, z=48, with hub
Gear module 4, z=48, with hub - a robust component for building and repairing gear transmissions, reducers and rack drives (gear rack + gear). The standard material is C45E steel (UNI EN 10083-1), widely used in the construction of gear transmissions, gear racks and module drives.
Technical data
| Module (m) | 4 |
| Pressure angle | 20° |
| Number of teeth (z) | 48 |
| Type | Gear with hub |
| Outside diameter (De) | 200 mm |
| Pitch diameter (Dp) | 192 mm |
| Hub outer diameter (d) | 80 mm |
| Pilot bore diameter (D) | 25 mm |
| Tooth width (h) | 40 mm |
| Overall hub height (A) | 60 mm |
| Weight | 9.5 kg |
| Material | C45E steel (UNI EN 10083-1) |
Frequently asked questions
How do you calculate the outside diameter from the number of teeth and the module?
It is very simple maths, often used by maintenance departments. The formula is: Dz = m * (Z + 2). For example, for a gear with module 3 and 20 teeth, the outside diameter will be: 3 * (20 + 2) = 66 mm.
How does the build quality of a Polish/European manufacturer reduce rolling resistance in the gearbox?
Cheap gears from unverified sources often have a rough tooth surface that acts like sandpaper, raising the temperature and the drive resistance. Our gears have a smooth working surface, which helps maintain the lubricating film and minimises energy losses.
How does a module gear differ from a chain sprocket?
A module gear meshes directly with another gear or gear rack, while a sprocket works with a roller chain - they have a different tooth profile and are not interchangeable, even though they look similar from a distance.
What does it mean when the gear "skips" teeth under load?
Most often it is a sign that the transmitted torque exceeds the tooth strength for the given module, or that the backlash is too large - in both cases continued operation leads to the teeth breaking off quickly.
Where is this product used?
Module gears of this type are used in speed reducers, machine gearboxes, CNC machine tools and in rack drives of sliding and entrance gates.
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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Weight9,5kg
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UPC Code5908453537737