Roller Bearings

AUBEARING, an ISO 9001 certified manufacturer of roller bearings, offers a range of products including cylindrical roller bearings, tapered roller bearings, spherical roller bearings, crossed roller bearings, needle roller bearings, and thrust tapered roller bearings. Roller bearings consist of inner and outer rings, a cage, and rolling elements which are typically cylindrical but can also be tapered or needle-shaped. Similar to ball bearings, roller bearings operate by carrying loads while minimizing friction. The main distinction lies in their shape and structure; ball bearings use spherical balls while roller bearings utilize cylindrical or tapered rollers. Roller bearings distribute loads more evenly across their contact surfaces, enabling them to withstand higher loads compared to ball bearings. They are available in single or multiple row configurations; multi-row designs significantly enhance radial load capacity. Furthermore, different roller shapes can further reduce friction and support both radial and axial loads, offering diverse performance capabilities. While roller bearings can withstand higher loads than traditional ball bearings, their applications are generally limited to low-speed operations. AUBEARING offers customization options including rings and roller materials (chrome steel, stainless steel, ceramic, Brass), lubrication, clearance, precision grades, and multi-row configurations.MOQ=1 Also known as roller-element bearings, roller bearings work under the same principle as ball bearings and serve one primary function: carrying loads with minimum friction. The difference between ball and roller bearings is shape and construction. The former use balls, while the latter use cylinders, such as cross roller bearings and linear roller bearings. Roller-element bearings contain single or double rows of rollers. For instance, double-row roller bearings significantly improve radial load-carrying. Besides, the utility of these bearings in various shapes and sizes allow for transmissions of both radial and axial loads with reduced friction.

Needle Roller Bearings

Needle roller bearings have higher load-carrying capacity due to their unique design featuring small-diameter cylindrical rollers (6 mm or smaller in diameter) positioned between a single roller path and the shaft, thus offering high load capacity. They also reduce rotational friction, are highly durable, and exhibit high rigidity. Designed with a smaller cross-section, these bearings are suitable for applications requiring minimal space, high temperatures, varying loads, and quiet operation. AUBEARING offers various variants of needle roller bearings to cater to a wide range of applications. Our product series include machined needle roller bearings, drawn cup needle roller bearings, spherical needle roller bearings, inner rings, axial needle roller bearings, needle roller cages, needle thrust bearings, and thrust washers. Roller and cage components are available in single or double rows, solid or split, with different sizes (metric and imperial) and tolerances (ABEC1-ABEC7). AUBEARING has enhanced roller/raceway profiles to prevent stress peaks, thereby extending operational life, and is equivalent to renowned global brands like SKF, IKO, NSK, INA, etc.

Crossed Roller Bearings

Crossed roller bearings consist of an outer ring, an inner ring, multiple rollers, and spacers. Generally, cylindrical or tapered rollers are arranged in a cross formation on a single raceway. The rollers are separated by retainers or spacers. Crossed roller bearings offer high rotational accuracy, large load capacity, compact dimensions, high rotational speed, and rigidity, surpassing other types of bearings in various applications. AUBEARING manufactures six types of crossed roller bearings: split outer ring type (CRBA), split inner ring type (CRBB), high rigidity type (CRBC), split outer ring with mounting holes (CRBD), high rigidity with mounting holes (CRBE), and customized (CRBX).

Tapered Roller Bearings

Tapered roller bearings primarily withstand combined radial and axial loads, with load capacity determined by the outer ring's raceway angle—the larger the angle, the higher the load capacity. Single-row tapered roller bearings have a cone angle between 10° and 19°. Double-row tapered roller bearings feature a larger cone angle between 25° and 29°, enabling them to bear greater axial loads. Four-row tapered roller bearings offer higher radial load capacity than double-row types but with slightly lower maximum speeds, primarily used in heavy-duty machinery. Sealed double and four-row tapered roller bearings typically increase lifespan by 20% to 40% and reduce lubricant consumption by 80% compared to open structure bearings.

Cylindrical Roller Bearings

Cylindrical roller bearings have high radial load capacity and moderate thrust load. The main difference between cylindrical roller bearings and other bearing types is the name - they use cylinders as the rolling elements, rather than the balls you find in ball bearings. The length of the cylinder is slightly greater than the diameter. Cylindrical rollers have a greater radial load capacity than ball bearings. The cylindrical roller design also allows these components to accept relatively faster speeds than other types of roller bearings.

Spherical Roller Bearing

Spherical roller bearings are self-aligning bearings designed for heavy radial loading. They automatically compensate for large angular errors (shaft misalignments). They are usually of the double row design, both the rows of the rollers having common spherical raceways in the outer ring. This feature of this bearing has great practical importance in those cases where it is difficult to obtain exact parallelism between the shaft and housing both axes. So these bearings are suitable where misalignment can arise from mounting errors or from deflection of the shaft. They have the ability to take static as well as dynamic misalignment. Spherical roller bearings are particularly suitable for carrying heavy loads. They are commonly found in Industrial Gear boxes, Conveyors, Cement Grinding Rolls, Sugarcane crushers and passenger coach axle boxes of Railways.

Spherical Roller Thrust Bearings

Spherical Roller Thrust Bearing -- The rolling elements are barrel-shaped and the raceways closely resemble the cone-and-cup design found in standard tapered roller bearings. This provides the bearing with self-aligning capabilities which is beneficial in applications where shaft deflection or shock loads can occur. They support heavy axial thrust in one direction (though variants exist for both directions), and can also tolerate moderate radial loads. As with tapered roller thrust bearings, the angle between the roller axis and the bearing axis determines the ratio of axial/radial loading.

Welcome to AUBEARING, your ideal destination for purchasing high-quality roller bearings. Our diverse range of roller bearings is designed to deliver excellent performance, durability, and reliability for various industrial applications. Whether you require cylindrical roller bearings, tapered roller bearings, or spherical roller bearings, we cater to your needs with products manufactured using top-quality materials and advanced heat treatment techniques for optimal precision and smooth operation. Here, you will find first-class products that meet the highest industry standards. Explore our comprehensive series of roller bearings and experience the performance and longevity they bring to your machinery and equipment.

Cylindrical Bearings: These bearings use cylinders as rolling elements to support heavy radial and impact loads. Due to their larger contact area, they can distribute loads over a greater surface, thus offering higher radial load capacity. AUBEARING provides fully detachable and single-side detachable single-row, double-row, and full-complement cylindrical roller bearings.

Tapered Roller Bearings: Bearings capable of supporting axial and radial loads. Their conical roller geometry allows for linear contact, enabling them to withstand larger loads than point-contact ball bearings. Tapered roller bearings are used in industries such as agriculture, construction, mining, automotive, and robotics. They come in both inch and metric sizes.

Spherical Roller Bearings: These bearings are designed to support heavy radial loads in applications prone to misalignment and shaft deflection. They can be designed with cylindrical or tapered bores for installation with or without sleeve adapters. Spherical roller bearings feature various internal clearances and cage options to handle axial loads in any direction and heavy impact loads. Their bore sizes range from 20 mm to 900 mm.

Needle Roller Bearings: Similar to cylindrical roller bearings but with needle rollers that are cylindrical in shape and 3 to 10 times longer than their diameter. These bearings offer high radial load capacity and are ideal for applications with limited radial space and high-speed requirements. Pressed outer ring types allow for high load capacity and large grease reservoirs while maintaining a thin cross-sectional design. These bearings are available in inch or metric sizes.

Thrust Roller Bearings: Specific rotating bearings designed to withstand high loads in harsh environments. They can feature various rolling elements including needle, tapered, spherical, or cylindrical rollers, which separate the bearing rings. Thrust roller bearings can withstand axial and thrust loads parallel to the axis of the shaft. Their speed ratings vary depending on the type of rolling element used; for example, spherical roller thrust bearings are ideal for high-speed applications, whereas cylindrical roller thrust bearings are suitable for moderate speeds.

Crossed Roller Bearings: High-precision roller bearings capable of withstanding loads in all directions. Their cylindrical rollers are arranged orthogonally to each other, allowing them to bear loads from multiple directions. Therefore, a single crossed roller bearing can replace multiple ball bearings, saving space and reducing related material costs.

Applications include automotive (wheel, gearbox, engine), industrial machinery (conveyors, fans, pumps, gearboxes), medical equipment (X-ray, MRI machines), household appliances (washing machines, refrigerators), agriculture (tractors, combines), and construction equipment (excavators, bulldozers, cranes).