Spur gear module 4 z=29 with hub
Available product promotions:
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Weight3,8kg
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UPC Code5908453537607
Product Description
Spur gear module 4, z=29, with hub
The spur gear module 4 shown, 29 teeth, with hub, is a basic component of module drives - it meshes with any other gear or gear rack (toothed rack) of the same module and pressure angle 20°. Made of C45E steel (UNI/EN 10083-1), which ensures high mechanical strength and wear resistance during prolonged operation under load.
Technical data
| Module (m) | 4 |
| Pressure angle | 20° |
| Number of teeth (z) | 29 |
| Type | Gear with hub |
| Outside diameter (De) | 124 mm |
| Pitch diameter (Dp) | 116 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 | 3.8 kg |
| Material | C45E steel (UNI EN 10083-1) |
Frequently asked questions
How do you choose a gear rack to match a specific module gear?
The principle is the same as when selecting two gears - the rack must have the same module as the drive gear. Remember to choose the right rack width, which should be equal to or slightly wider than the face width of the gear, in order to transmit the full torque.
Does the tooth shape of a module gear affect smooth running?
Yes, the ideal involute profile achieved through precise machining ensures uniform power transmission. This prevents jerking that could lead to teeth breaking off under load.
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.
How do you cut a keyway in a module gear with a small hub?
In gears with a small hub, the keyway is slotted with great care so as not to weaken the wall above the tooth. If there is not enough space, we recommend dispensing with a standard key (feather key) in favour of mounting with clamping bushes (locking assemblies).
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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Weight3,8kg
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UPC Code5908453537607