Spur gear module 3 z=40 with hub hardened
Available product promotions:
-
Weight3,3kg
-
UPC Code5908453537324
Product Description
Spur gear module 3, z=40, with hub, hardened
This module 3 spur gear (40 teeth, with hub) is used wherever reliable, maintenance-free power transmission via involute gearing is required. 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) | 3 |
| Pressure angle | 20° |
| Number of teeth (z) | 40 |
| Type | Gear with hub |
| Outside diameter (De) | 126 mm |
| Pitch diameter (Dp) | 120 mm |
| Hub outer diameter (d) | 80 mm |
| Pilot bore diameter (D) | 20 mm |
| Tooth width (h) | 30 mm |
| Overall hub height (A) | 50 mm |
| Weight | 3.3 kg |
| Material | C45E steel (EN 10083-1), teeth induction hardened 45-55 HRC |
Frequently asked questions
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).
Does a module gear require constant lubrication?
Enclosed gears (in speed reducers) run in oil or grease, while open systems (gear + rack) require periodic manual lubrication - without it, friction and tooth wear increase many times faster.
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.
How does manufacturing gears on CNC machine tools eliminate gearbox noise?
Old casting methods or milling on worn machines produce irregularities in the order of tenths of a millimetre. Our CNC machining ensures a perfect tooth profile. The gears roll on each other smoothly, which results in a dramatic drop in decibels on the production floor.
Where is this product used?
Used in the construction and servicing of gear reducers and gear transmissions for agricultural and construction machinery, and wherever precise and repeatable torque transmission 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
-
Weight3,3kg
-
UPC Code5908453537324