Products
Wide Range of Bearing Products
ETERNUM Motion Technology Co., Ltd. manufactures a comprehensive range of precision bearings designed to meet the demands of modern industrial applications. Whether you require standard catalog products or fully customized solutions, our bearings are backed by over 20 years of manufacturing expertise, an ISO 9001:2015 certified quality management system, and SGS-verified compliance with EU RoHS and REACH regulations.
Every bearing undergoes rigorous inspection throughout our fully automated production process to ensure consistent dimensional accuracy, low-noise operation, and reliable service life from batch to batch. Our product range covers everything from miniature bearings for small electric motors, home appliances, office equipment, and medical devices to heavy-duty roller bearings for industrial machinery, automotive systems, and power transmission equipment. All products are manufactured at our production facility in Cixi, Ningbo—one of China’s leading bearing manufacturing centers.
We serve customers worldwide with flexible OEM and ODM manufacturing services tailored to specific application requirements. When standard products are not suitable, our engineering team can develop customized bearing solutions based on your drawings, samples, or technical specifications, providing reliable support from design through production.
Categories
Categories
Deep Groove Ball Bearings
Deep Groove Ball Bearings are the most widely used type of rolling bearing, characterized by raceway grooves on both the inner and outer rings that are deep relative to the ball diameter. This structural design allows them to support both radial loads and moderate bidirectional axial loads simultaneously, making them suitable for a broad range of general-purpose and demanding industrial applications alike.
Angular Contact Ball Bearings
Angular Contact Ball Bearings are the most widely used type of rolling bearing, characterized by raceway grooves on both the inner and outer rings that are deep relative to the ball diameter. This structural design allows them to support both radial loads and moderate bidirectional axial loads simultaneously, making them suitable for a broad range of general-purpose and demanding industrial applications alike.
Four-Point Contact Ball Bearings
Four-Point Contact Ball Bearings are single-row angular contact bearings, featuring specially designed raceways that allow each ball to make four contact points under axial loading. This unique design enables them to support radial loads, bidirectional axial loads, and overturning moments simultaneously, making them an ideal solution for applications requiring compact designs, high rigidity, and accurate shaft positioning.
Tapered Roller Bearings
Tapered Roller Bearings are a high-capacity rolling bearing type featuring conical (tapered) rollers arranged between tapered inner and outer ring raceways, with all roller axes converging at a common point on the bearing centerline. This geometry allows the bearing to support substantial combined radial and axial loads simultaneously, making it one of the most load-dense bearing types available, particularly well-suited for applications involving heavy loads and moderate-to-high speeds.
Spherical Roller Bearings
Spherical Roller Bearings are a heavy-duty rolling bearing type featuring barrel-shaped (spherical) rollers arranged between an outer ring with a spherical raceway and an inner ring with two raceways, typically in a double-row configuration. The spherical outer raceway gives this bearing type its defining characteristic – self-aligning capability – allowing it to accommodate shaft misalignment and housing deflection while continuing to support substantial combined radial and axial loads.
Thin Section Bearings
Thin Section Bearings are a specialized category of rolling bearings characterized by an exceptionally narrow cross-section relative to bore diameter, typically maintaining a near-constant cross-sectional width across a wide range of bore sizes within the same series. This design enables significant weight reduction, compact installation envelopes, and minimized material usage compared to standard-section bearings of equivalent bore size, making them the preferred solution for applications where space, weight, and precision are simultaneously critical.
Needle Roller Bearings
Needle Roller Bearings are a compact rolling bearing type utilizing long, thin cylindrical rollers (needle rollers) with a small diameter-to-length ratio, arranged radially around the shaft. This design provides high radial load capacity within an extremely small cross-sectional envelope, making needle roller bearings the preferred choice for applications where radial space is severely limited but load support requirements remain substantial.
Cylindrical Roller Bearings
Cylindrical Roller Bearings are a high-capacity radial bearing type featuring cylindrical rollers in line contact with the inner and outer ring raceways, rather than the point contact found in ball bearings. This line contact distributes load over a larger surface area, enabling the series to support substantially higher radial loads than deep groove ball bearings of equivalent size, while maintaining good speed capability.
Thrust Bearings
Thrust Bearings are a category of rolling bearings specifically designed to support axial (thrust) loads acting along the shaft axis, with little or no capacity for radial loading. Unlike radial bearings, the rolling elements in thrust bearings are arranged between two flat or grooved washers (races) oriented perpendicular to the shaft, allowing efficient transfer of axial force between rotating and stationary components.
Miniature Ball Bearings
Miniature Ball Bearings are compact deep groove ball bearings designed for applications where space is limited but smooth, high-speed operation is required. Their lightweight construction, low friction, and low noise characteristics make them ideal for small electric motors, office equipment, home appliances, medical devices, robotics, and precision instruments requiring reliable rotational performance.
Insulated Bearings
Insulated Bearings are specialized rolling bearings designed to prevent electrical current from passing through the bearing, protecting equipment from electrical erosion and premature failure. Available in ceramic-coated and hybrid ceramic designs, they are widely used in industrial motors, generators, railway traction motors, wind turbines, and variable frequency drive (VFD) applications requiring reliable electrical insulation and extended service life.
Industry Applications
Eternum bearings are engineered for the full spectrum of industrial demand — from high-speed electric motors and precision robotics to heavy-duty mining equipment and agricultural machinery. Whatever the operating condition, whatever the load, we have a bearing solution built for it.
FAQs
What types of bearings do you supply?
We supply a broad range of industrial bearings, including deep groove ball bearings, angular contact bearings, tapered roller bearings, cylindrical roller bearings, thrust bearings, spherical roller bearings, needle roller bearings, thin section bearings, miniature bearings and insulated bearing solutions.
How do I choose the right bearing for my application?
Share the bearing number or the shaft and housing dimensions, together with load direction, operating speed, temperature, lubrication and working environment. Our team can recommend a suitable type, series, clearance, seal and precision grade.
Can you provide OEM, ODM or customized bearings?
Yes. We support OEM and ODM projects, including non-standard dimensions, special materials, seals, cages, lubricants, tolerances, laser marking, private-label packaging and export carton design.
Which materials, seals and precision grades are available?
Common options include GCr15 / 52100 chrome steel, stainless steel and hybrid ceramic designs. Depending on the product, we can offer open, metal-shielded, rubber-sealed and special sealing options, with normal and higher precision grades for demanding applications.
Can you help cross-reference an existing bearing part number?
Yes. Send us the existing brand and part number, plus a photo or dimensions if available. We can check the relevant dimensions and technical requirements, then recommend an equivalent or an improved alternative.
What are your minimum order quantity and sample options?
MOQ depends on the bearing type, size, packaging and whether the item is a standard stock model or a customized production. Sample orders and small trial quantities can be discussed before a larger purchasing program.
How do you control quality and arrange global delivery?
Products are checked through incoming-material, dimensional, noise, vibration and appearance inspections as applicable. We can provide export packing, required documentation and shipment coordination for sea, air or courier delivery worldwide.
Get a Fast Response from Our Team
Share your bearing requirements or project details — our team will review your inquiry and respond with the right product recommendations and pricing.
ETERNUM MOTION TECHNOLOGY