The core function of the transmission shaft sealing kit of Atlas Copco screw air compressors
The main role of the transmission shaft sealing kit is to prevent the lubricating oil inside the compressor from leaking out along the transmission shaft, and to prevent external air, dust, moisture and other impurities from entering the compressor through the gap between the shaft and the body, thereby ensuring the sealing performance of the lubrication system and the cleanliness of the compressed air, and avoiding oil loss, environmental pollution or internal component contamination and wear caused by leakage.
Typical composition
The kit usually contains various sealing components, and may include:
Frame oil seal (main sealing component, responsible for the main sealing function);
O-rings, sealing gaskets, etc. as auxiliary sealing components;
May include dust shields (to prevent external impurities from invading);
Some kits may come with installation-required positioning rings or guide sleeves and other small components.
Material and design features
The sealing components mostly use elastic materials that are resistant to oil, high temperature and wear (such as nitrile rubber, fluorine rubber, etc.), to adapt to the oil environment and working temperature inside the compressor (usually operating at higher temperatures continuously);
The frame oil seal usually adopts a structure combining metal frame and rubber to ensure the rigidity and fit of the sealing component, ensuring a good sealing effect even when the shaft rotates;
The size accuracy is strictly matched to the mating tolerance between the transmission shaft and the body, ensuring a close fit after installation without excessive friction that leads to premature wear.
Original equipment advantages
Precise fit: As an original factory part, the kit's size, material and specific model of the screw compressor's transmission shaft system are completely matched, avoiding sealing failure or shaft system wear caused by deviation in non-original part size;
Durability guarantee: The materials and processes comply with Atlas Copco's strict standards, with better anti-aging and anti-wear performance, extending the replacement cycle;
System compatibility: Compatible with the lubricating oil type, working pressure and other parameters of the compressor, avoiding sealing component swelling or hardening due to incompatible materials with the oil.
