Spur gear module 4 z=30 with hub hardened
Available product promotions:
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Weight4kg
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UPC Code5908453537881
Product Description
Spur gear module 4, z=30, with hub, hardened
Gear module 4, z=30, with hub - a robust component for building and repairing gear transmissions, reducers and rack drives (gear rack + gear). The tooth surface is induction hardened (45-55 HRC), so the gear better withstands high cyclic loads and operation in harsh industrial conditions.
Technical data
| Module (m) | 4 |
| Pressure angle | 20° |
| Number of teeth (z) | 30 |
| Type | Gear with hub |
| Outside diameter (De) | 128 mm |
| Pitch diameter (Dp) | 120 mm |
| Hub outer diameter (d) | 75 mm |
| Pilot bore diameter (D) | 20 mm |
| Tooth width (h) | 40 mm |
| Overall hub height (A) | 60 mm |
| Weight | 4 kg |
| Material | C45E steel (EN 10083-1), teeth induction hardened 45-55 HRC |
Frequently asked questions
Can gears with different modules be combined in one gearbox?
Absolutely not. Teeth of different modules differ in size and pitch. Any attempt to mesh them will end in the drive jamming or the teeth breaking off immediately on the first revolution of the shaft.
Are the gear wheels for sliding gates also module gears?
Yes, the classic gate drive gear is a module gear working with a gear rack fixed to the gate leaf. This is usually module 4 (m=4), and for intensive commercial use precision-machined components are chosen that run quietly and without jamming.
How do you calculate the ratio of a gear pair of two module gears with different numbers of teeth?
The ratio is calculated as the quotient of the number of teeth of the driven gear to that of the driving gear (i = Z2/Z1); the module must be identical for both gears, otherwise meshing will not work at all.
In which applications do helical module gears perform well?
Helical teeth ensure smoother engagement, which drastically reduces noise and vibration at high rotational speeds. They are used in precision speed reducers and machine tools, bearing in mind, however, the need to use thrust bearings (absorbing axial forces).
Where is this product used?
It performs well in power transmission systems in machine tools, production lines and sliding gates, where it works together with a gear rack of the same module.
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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Weight4kg
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UPC Code5908453537881