By evaluating factors ranging from oil leaks, wear, hardening, shaft surfaces, rotational speed, and temperature to oil quality, you can minimize downtime and rework, while making seal life and maintenance intervals more predictable.
Whether it's oil leaks, wear, hardening, damage to the shaft surface, or issues related to speed, temperature, pressure, lubricant, or materials, you can assess them all at once. You don't have to guess the cause of each problem one by one.
Send us photos of the on-site conditions, the old oil seal, the equipment, or the original specifications, and together we’ll pinpoint the real issue so that the next oil seal is more likely to be the right choice from the start and provide reliable, long-term performance.
Each of these factors contributes to the same outcome: fewer oil leaks, less downtime, longer-lasting oil seals, and easier maintenance scheduling.
By examining the oil leak location, lip wear, hardening, deformation, and the condition of the shaft surface—and cross-referencing these findings with rotational speed, pressure, and oil quality—we can identify the true cause of failure, restore stable sealing to the equipment, and reduce the need for repeated disassembly and oil replenishment.
Select the appropriate material based on temperature, oil type, rotational speed, and operating environment to ensure the oil seal is truly suited to the equipment’s operating conditions, resulting in a more consistent service life and reducing the frequency of spare parts and labor costs.
By evaluating the shaft diameter, rotational speed, and contact conditions together, we reduce temperature rise at the lip, friction, and abnormal wear, enabling the equipment to maintain a stable seal even during high-speed operation.
In addition to the inner diameter, outer diameter, and thickness, we also verify the shaft diameter, tolerances, mounting seat, and actual fit to ensure that the oil seal not only matches the dimensions but also provides a reliable seal once installed, thereby reducing the need for disassembly, reassembly, and rework.
Assess the on-site environment to determine the need for dust protection, water resistance, and auxiliary lips, ensuring that oil seals not only retain lubricant but also minimize the ingress of dust, moisture, and contaminants, thereby extending the service life of bearings and internal components.
By taking into account oil quality, temperature, rotational speed, pressure, operating time, and environmental conditions, the service life of oil seals becomes more predictable, allowing for early planning of spare parts, maintenance, and downtime.
First, choose the right design, then select materials suited to the actual operating conditions—only then can you avoid situations where “the dimensions are the same but there’s still a leak” or “a new oil seal doesn’t last long.”
First, determine whether you need a single-lip, double-lip, dust-proof, or metal-cased seal so that the oil seal meets your equipment's requirements from the start.
The primary sealing lip and secondary dust-proof lip work together to retain lubricant and block out dust and moisture, making the equipment more durable in typical industrial environments.
See the corresponding operating conditions and material selection →
Oil sealing is achieved primarily through the sealing lip, resulting in a simple and straightforward design that makes it easier to select and maintain for general oil sealing needs.
See the corresponding operating conditions and material selection →
The lip seal design, combined with the metal housing, ensures that mounting brackets requiring a specific outer diameter can provide both oil sealing and dust protection.
See the corresponding operating conditions and material selection →
A single-seal lip combined with a metal housing ensures a stable fit even when used solely for oil sealing on specific mounting brackets.
See the corresponding operating conditions and material selection →Even for the same size oil seal, different materials can result in significant differences in the types of oil they can withstand, their temperature tolerance, operating speed, and service life. Only when the material is properly matched will the oil seal truly last a long time.
General-purpose machinery and common lubricants are highly versatile and suitable for most standard sealing and lubrication needs.
Suitable for higher temperatures and more demanding oil and chemical environments, ensuring greater stability under high-temperature operating conditions.
Suitable for a wide temperature range and special applications, offering both flexibility and stability.
Commonly used in high-temperature oil applications and automotive drivetrain environments to maintain consistent oil-sealing performance.
It serves as a more advanced option when dealing with extreme temperatures, chemical media, and low-friction requirements.
When oil seals require high heat resistance and wear resistance, HNBR should be considered; the seal type, compound, and supply specifications should be determined based on the oil type, temperature, and rotational speed.
The crankshaft, transmission, and drive shaft are all subjected to oil, temperature, rotational speed, and vibration. Choosing the right oil seals can reduce oil leaks and make the drivetrain more stable.
When the spindle, gearbox, and hydraulic pump operate for extended periods, reliable oil seals help reduce leaks and unplanned downtime, ensuring that equipment accuracy and uptime are better maintained.
In environments with dust, vibration, heavy loads, and prolonged operation, the right oil seals can protect bearings and lubrication systems, thereby reducing the frequency of maintenance on heavy equipment.
In addition to preventing leaks of lubricants, mixing, conveying, and packaging equipment must also meet cleanliness and material requirements to ensure peace of mind regarding production and hygiene management.
Mixing, conveying, and packaging equipment must prevent lubricant leaks while ensuring compliance with equipment cleanliness and material requirements. Verify the oil seal materials and design based on operating conditions to ensure that both sealing and maintenance requirements are met.
When equipment has special requirements regarding media, low friction, or extreme temperatures, first verify the shaft surface, rotational speed, and sealing conditions, and then evaluate the use of PTFE oil seals or custom designs; cleanliness and vacuum requirements should be confirmed based on the actual equipment specifications.
Just because oil seals are the same size doesn’t mean they’re made of the same material. By verifying material documentation, conducting FTIR material comparisons, and checking dimensions and appearance, we make it easier for you to inspect and trace the oil seals you receive, and to integrate them into your company’s quality control processes.
Step 1 | Document Verification
Material certifications, batch numbers, and compliance documents are verified based on information provided by the original manufacturer or a third party.
Level 2 | Incoming Material Self-Inspection
FTIR material comparison, along with dimensional and visual inspections, makes it easier to verify that the materials match the actual delivery.
Material certifications, batch information, and compliance documentation are provided based on the original manufacturer’s or third-party documents; the specific documents required and their scope of application will be determined based on the actual materials and order requirements.
Incoming materials undergo FTIR material verification, and their dimensions and appearance are checked simultaneously to ensure that the materials, specifications, and actual delivery match.
After reevaluating the oil seal specifications and operating conditions, the equipment’s sealing stability improved, and the frequency of maintenance and downtime decreased significantly.
Select appropriate sealing materials and oil seal solutions based on the operating conditions of the food processing equipment, while also taking into account the equipment’s cleaning and maintenance requirements.
It’s okay if you don’t know the model number. Just send us whatever information you have—such as photos of the old oil seal or equipment, shaft diameter, dimensions, oil type, temperature, and rotational speed—and we’ll help you figure out the next steps.
