Caution for Replacing Floating Oil Seals
Mechanical equipment in every industry has a certain lifespan, and the floating oil seals are no exception. In daily use, they inevitably suffer some degree of damage due to friction or other external environmental factors, which can eventually lead to failure over time. To ensure the normal operation of mechanical equipment, it's crucial to replace the floating oil seals in a timely manner, and some issues should be noted during the replacement process. DO0830 Coal Mining Machine Floating Oil Seal Installation Video
Additionally, the DO0830 coal mining machine's floating oil seal installation pressure should be adjusted after replacing the new floating oil seal. To ensure the product is properly seated, it's advisable to use shims to avoid the original friction marks. This significantly guarantees the new product's optimal performance. Meanwhile, when pricing the DO0830 coal mining machine floating oil seal, attention should also be given to proper maintenance and care for the newly installed product. Regular cleaning and lubrication will greatly extend the oil seal's lifespan.

Failure Analysis of Floating Oil Seals
1. Uneven or excessive sealing face load (contact pressure)
Improper installation can lead to this phenomenon, causing leaks and damage to the floating seal ring.
2. Violation of installation requirements
InstallFailure to operate according to specifications can lead to damage and deformation of the float seal ring, as well as cuts and tears in the rubber ring, all of which result in failure. Contamination or fluff on the sealing surface can also cause leakage. Therefore, it is essential to operate meticulously according to the installation specifications.
3、Internal Pressure Piercing
Floating oil seals can withstand varying internal pressures within the design range. Typically, the internal pressure is below 1.0 to 1.7 Bar, ensuring a safe seal.

Floating Seal Ring
Floating Seal Ring: Also known as a floating ring, floating seal ring, sealing ring, or floating oil film seal, it is a type of liquid seal. The structure of this seal ring typically consists of an inner floating ring (high-pressure ring), an outer floating ring (low-pressure ring), springs, sealing rings, and anti-rotation pins, etc., as sealing elements. Since floating seal rings are used in pairs, the DO0830 coal mining machine floating oil seal features a sealing face made of wear-resistant metal seal material, which is ground to create a metal circular seal ring for sealing purposes.
So, during equipment operation, the floating seal ring (a specialized floating ring for coal mining oil seals) remains in a floating state under the action of oil film pressure, overcoming the wear phenomenon that is prone to occur in fixed sleeves. This design significantly reduces the sealing gap, and the oil pump's capacity and the process of waste oil recovery can also be correspondingly reduced and simplified. It is also one of the ideal sealing devices for coal mining machinery and equipment.

DO0830 Coal Mining Machine Floating Oil Seal - ZHONU Seal Co., Ltd. provided by Beijing ZHONU Seal Technology Co., Ltd. Beijing ZHONU Seal Technology Co., Ltd. has dedicated much enthusiasm and passion to the field of sealing components. ZHONU Seal has always been customer-centric, creating value for customers, winning the market with quality and service, and sincerely hopes to cooperate with all sectors of society to create success and brilliance together. For related business inquiries, please contact Shan Xiaopei.






























