The toothed ring gear of the excavator ESh-10/70 is one of the main power units of the swing mechanism. Method of attachment to the support base is mechanical.
The Material: Gear modules are made of steel 40 ХН, casing is made of steel 35.
Advantages of the toothed ring:
Increase of service life by 30-50% in relation to the original cast design of the tooth gear, is achieved by using a forged billet as a material. Volumetric hardening of gear modules provides high hardness of tooth material, it is technically impossible to obtain the same indicators on a cast product.
Reducing the cost of each subsequent gear repair due to the lower cost of a set of modules compared with the cost of a cast gear. Total weight of 24 modules in one repair set is 5,316 kg.
Decrease in cost for each subsequent repair of a ring gear by eliminating the need to dismantle a support base and reboring a ring gear.
Modules replacement is made with the help of locksmith's tool using standard excavator lifting equipment.
Weight of one module is 221 kg.
|Number of teeth||
|Accuracy degree of GOST 1643-81||
|Constant tooth chord||
|Height to the constant chord||
|Number of sectors||
|Number of interchangeable modules||