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Non-standard Bearing Parts

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Seal Ring

Bearing seals are critical components for slewing bearings, rolling bearings, and other mechanical bearings. Their primary function is to effectively isolate dust, impurities, and moisture, preventing lubricant leakage and thus extending bearing life. LTZC bearing seals ring are made of high-strength rubber, polyurethane, with metal frames or reinforcements. They are suitable for high-speed, high-temperature, and heavy-load environments, ensuring stable bearing operation under complex operating conditions.

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Seal Ring

LTZC  seal ring

Highly Reliable Sealing Performance

LTZC seals are made of wear-resistant rubber, fluororubber (FKM), or polyurethane, offering excellent oil, water, and dust resistance, extending sealing life by 30%–50% compared to ordinary seals.

High Precision Machining Matching

Leveraging LTZC's complete production chain, seals are designed and machined synchronously with bearings, gear rings, and slew drive structures, ensuring a sealing surface clearance consistency of ≤0.05mm, effectively improving overall sealing reliability.

Adaptable to Extreme Conditions

Maintaining stable elasticity and sealing force within a temperature range of -40°C to +180°C, suitable for wind power, marine equipment, construction machinery, and heavy-duty industrial applications.

Lower Friction, Reduced Energy Consumption

LTZC optmizes the sealing structure for slew bearings and slewing drive systems, offering various seal designs to reduce frictional resistance by 10%–15%, helping equipment improve efficiency and reduce heat generation.

Customizable Structures

LTZC offers various sealing structures including V-type, U-type, labyrinth type, and combined types. Materials, hardness, lip structure, and assembly methods can be customized to meet customer equipment requirements.

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LTZC Sealing Ring Quality Assurance

LTZC sealing products and complete system kits meet ISO 9001, ISO 14001, and ISO 45001 standards and satisfy marine-grade application requirements such as CCS, BV, and ABS.

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LTZC seal type

Seal MaterialTemperature RangeMain FeaturesTypical Applications
Nitrile Rubber (NBR)–40°C ~ +120°CGood oil resistance, abrasion-resistant, cost-effectiveGeneral machinery, motors, automotive bearings
Fluororubber (FKM / Viton)–20°C ~ +200°CHigh-temperature resistance, chemical resistance, long service lifeChemical equipment, high-temperature machinery, heavy-duty bearings
Silicone Rubber (VMQ)–60°C ~ +200°CExcellent low/high-temperature flexibilityFood machinery, medical devices, low-temperature environments
PTFE (Polytetrafluoroethylene)–180°C ~ +260°CLow friction, corrosion-resistant, ultra-high-temperature capableHigh-speed bearings, corrosive environments, clean equipment
Polyurethane (PU)–40°C ~ +90°CExtremely wear-resistant, high elasticityConstruction machinery, heavy-load equipment, dirty environments
Chloroprene Rubber (CR)–40°C ~ +120°CWeather-resistant, ozone-resistant, water-resistantOutdoor equipment, humid environments
Metal Seals (Steel + Rubber)Depends on materialHigh structural strength, dust-proof, shock-resistantHeavy-duty bearings, construction machinery
Labyrinth SealDepends on metal materialNon-contact design, suitable for high-speed rotationLarge slewing bearings, wind turbines

Why choose LTZC bearings?

A Trusted Brand

With over 20 years of experience in bearing R&D, our global service network covers countries such as India and Russia, ensuring fast and efficient technical support for all bearing issues and ensuring the smooth operation of your equipment.

High-Quality Bearings

Advanced CNC production equipment and manufacturing processes guarantee bearing precision and durability. LTZC bearings also carry third-party testing reports to ensure they meet international standards.


Product Range

LTZC products include slewing bearings, slewing drives, precision thin-wall bearings, and custom bearings. They are widely used in cranes, heavy machinery, and port machinery, maintaining stable performance under harsh operating conditions.

Custom Bearings

Our experienced technical team provides customized bearing solutions for complex applications. Services include load analysis and bearing selection, service life calculations, 3D design, and engineering drawings.


LTZC slewing bearing manufacturer

LTZC Bearings is a trusted bearing manufacturer specializing in slewing bearings, slewing drives, and precision bearings. With advanced CNC machining equipment, comprehensive heat treatment, and strict quality control, our products meet international standards and are ISO certified.

We export high-quality industrial bearings to Germany, India, Russia, and Canada, earning over 10,000 satisfied customer feedbacks. With strong OEM and ODM capabilities, LTZC provides fast delivery and custom bearing solutions for heavy machinery, construction, and automation industries.

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Customized bearing solutions

Customized bearing solutions

LTZC is a professional slewing bearing manufacturer,providing a full range of custom bearing services, including slewing rings, non-standard bearings, large bearings, thin-section bearings, crossed roller bearings, and four-point contact ball bearings. Whether the requirements are special sizes, materials, or complex operating conditions, we can provide customers with the optimal solution through professional R&D and precision manufacturing.

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Feel free to get a quote on the latest price of slewing bearings for any largeapplications, please include your application, needs, requirements and otherdetails.