Germany annovi reverberi seals, annovi reverberi models, annovi reverberi prices

annovi reverberi seals are typical representatives of oil seals. The term "oil seal" generally refers to skeleton oil seals. The function of an oil seal is to isolate components requiring lubrication within transmission parts from the external environment, preventing lubricating oil leakage. The skeleton acts like reinforcing steel in concrete components, providing reinforcement and enabling the oil seal to maintain its shape and tension. Based on structural form, they can be divided into single-lip skeleton oil seals and double-lip skeleton oil seals. The secondary lip of a double-lip skeleton oil seal serves a dust-proof function, preventing external dust, impurities, etc., from entering the machine interior. Based on skeleton type, they can be divided into inner-covered skeleton oil seals, exposed skeleton oil seals, and assembled oil seals. Based on operating conditions, they can be divided into rotating skeleton oil seals and reciprocating skeleton oil seals. Used for gasoline engine crankshafts, diesel engine crankshafts, gearboxes, differentials, shock absorbers, engines, axles, and other locations.

annovi reverberi seal principle

Due to the oil film controlled by the oil seal lip edge between the oil seal and the shaft, this oil film possesses fluid lubrication characteristics. Under the action of liquid surface tension, the stiffness of the oil film causes the end contacting air to form a meniscus, preventing leakage of the working medium and thereby achieving sealing of the rotating shaft. The sealing capability of the oil seal depends on the thickness of the oil film on the sealing surface; if the thickness is too great, the oil seal will leak; if the thickness is too small, dry friction may occur, causing wear on the oil seal and shaft; if there is no oil film between the sealing lip and the shaft, it is prone to cause heating and wear. Therefore, during installation, some oil must be applied to the sealing ring, and it must be ensured that the skeleton oil seal is perpendicular to the shaft axis. If not perpendicular, the sealing lip of the oil seal will wipe the lubricating oil off the shaft, also leading to excessive wear of the sealing lip. During operation, it is ideal for a slight amount of lubricant to seep out from within the housing to achieve the state of forming an oil film at the sealing surface.

annovi reverberi seal applications

Skeleton oil seals are widely used in aviation, automotive, motorcycle, railway, vehicle, shipbuilding, home appliance, construction machinery, and other industries. Suitable for sealing rotating motion and reciprocating motion. Installed on various heavy-duty engines, gearboxes, axles, ships, cylinders, and other locations. Mainly prevents permeation of the sealed medium (gas, liquid) and entry of external foreign matter into the body. Precautions: The pressure-bearing range of ordinary oil seals is very limited, generally 0.03 MPa. This pressure is generally formed by the height difference of the lubricating oil itself. If higher pressure sealing is required, high-pressure oil seals should be selected (generally capable of withstanding up to 1 MPa pressure) or other sealing forms should be chosen.

annovi reverberi seal precautions

1) Obtain a fixed quantity of oil seals. 2) From receipt to assembly, oil seals must be kept clean. 3) Before assembly, perform oil seal inspection. Measure whether the dimensions of all parts of the skeleton oil seal match the shaft and housing dimensions. Before installing the skeleton oil seal, clearly compare the shaft diameter dimension with the inner diameter dimension of the oil seal; they must match. The internal dimensions of the housing must be suitable for the outer diameter width of the oil seal. Check whether the lip of the skeleton oil seal is damaged or deformed, and whether the spring has fallen off or rusted. Prevent the oil seal from being placed flat during transportation, which could affect its roundness due to external squeezing and impact. 4) Perform machining inspection procedures before assembly. Measure whether the dimensions of the housing and shaft parts are correct, especially the inner chamfer, which must not have a slope. The end face machining of the shaft and housing must be smooth. Chamfers must not have damage or burrs. Clean the assembly area. There must be no burrs, sand, iron chips, or other debris at the shaft insertion area (chamfer), as these will cause irregular damage to the oil seal lip. It is recommended to use a r angle for the chamfer area. 5) Regarding operational technique, use your hand to feel whether it is smooth and truly round. 6) Do not tear open the packaging paper of the skeleton oil seal too early before installation, to prevent debris from adhering to the oil seal surface and being introduced into operation. 7) Before machine installation, apply an appropriate amount of lithium-based grease containing molybdenum disulfide between the lips of the skeleton oil seal. This prevents dry grinding against the lip during instantaneous shaft startup, which affects the lip's interference fit, and assembly should be completed as soon as possible. If the oil seal housing with the installed oil seal is not immediately installed in the machine, it is recommended to cover it with a cloth to prevent foreign matter from adhering to the oil seal. Hands or tools applying lithium-based grease must be clean. 8) Skeleton oil seals must be installed flat, without tilting. It is recommended to use hydraulic equipment or sleeve tools for installation. Pressure should not be too high, and speed must be uniform and slow. 9) Mark the machine where the skeleton oil seal is installed this time to facilitate tracking, and pay careful attention to the entire process.

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