Spherical Plain Bearings With Graphite

Spherical plain bearings are a type of bearing designed to handle multidirectional loads, with both radial and axial components, while providing smooth, low-friction motion. They are commonly used in applications where misalignment, oscillating, or recurring tilting motions are present.

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A wide range of bearing types and sizes are available to help you select the right bearing for your application.

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Bearing Maintenance

Bearing maintenance is important to keep bearings running properly in a variety of applications. Our Self-lubricating bearings are oil-free & maintenance-free

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Our high performance bearings are designed and manufactured to meet a range of stringent requirements to ensure they remain efficient at high speeds, high loads and high precision.

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Types Of Spherical Plain Bearings

There are three primary types of spherical plain bearings: radial, angular contact, and thrust bearings. Each type has its own unique design and application benefits.

Cast Bronze Thrust Washer

Radial spherical plain bearings are designed to handle primarily radial loads and can accommodate angular misalignments. They are composed of an inner and outer ring, with a spherical sliding surface between them. Radial spherical plain bearings are widely used in applications with oscillating movements, as they provide low friction and smooth motion.

Radial Spherical Plain Bearings

Angular contact spherical plain bearings are designed to handle combined loads, with both radial and axial components. They have a split inner ring and a single-piece outer ring. These bearings are used when a higher load-carrying capacity is required, as they can handle higher axial loads compared to radial spherical plain bearings.

Angular Contact Spherical Plain Bearings

Thrust spherical plain bearings are specifically designed to handle axial loads. They consist of two flat raceways, with a spherical sliding surface in between. These bearings are used in applications where high axial loads or axial misalignment is present.

Thrust Spherical Plain Bearings

Plain Spherical Bearing With Graphite – VIIPLUS

It can rotate and swing at any angle when moving. The VIIPLUS graphite spherical bearing can greatly save time and reduce the difficulty of assembly.

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Spherical plain Bearing

Discover the Hidden Power of Spherical Plain Bearing

Spherical Plain Bearing CuZn25Al5 with White PTFE Plugs

CuZn25Al5, or copper-aluminum alloy, plays a crucial role in enhancing the bearing’s durability and strength. This alloy is known for its excellent corrosion resistance, making it ideal for bearings used in harsh environments.

The Benefit of White PTFE Plugs

PTFE (Polytetrafluoroethylene), popularly known as Teflon, is a high-performance plastic with excellent properties such as low friction, high heat resistance, and chemical inertness. The white PTFE plugs in these bearings provide an added layer of protection, reducing friction and enhancing the overall performance of the bearing.

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Materials Used in Spherical Plain Bearings

Spherical plain bearings can be made of various materials, depending on the specific application requirements. The most common materials include steel-on-steel, steel-on-PTFE, and steel-on-bronze.

  • Steel-on-steel bearings are made of hardened steel, with both the inner and outer rings featuring a steel sliding surface. These bearings are highly durable and can handle high loads. However, they require regular lubrication to minimize friction and wear.

  • Steel-on-PTFE bearings have a steel inner ring and a PTFE (polytetrafluoroethylene) composite material on the sliding surface of the outer ring. They are suitable for applications where lubrication is difficult or undesirable.

  • Steel-on-bronze bearings consist of a steel inner ring and a bronze outer ring. suitable for applications with low to moderate loads and speeds. They are often used in applications where corrosion resistance is important

spherical plain bearing
spherical plain bearings

HIGH-QUALITY graphite spherical plain bearing

Advantages Of Spherical Plain Bearings

Spherical plain bearings offer several advantages compared to other types of bearings:

  • They can accommodate misalignment, oscillating, and tilting motions, making them ideal for applications with complex load conditions.

  • a wide range of materials, sizes, and designs, allowing for customization based on specific application requirements.

  • low friction and smooth motion, ensuring efficient and reliable performance.

  • easy to install and maintain, often requiring minimal maintenance, especially in the case of maintenance-free bearings.

Characteristics Of Graphite Spherical Bearing

  • Maintenance-free features quite long service life.
  • Conforms to ISO Standard E type bearings. High precision.
  • The inner surface of the inner ring is subject to sliding. The outer surface of the outer ring bear self-aligning.
  • Suitable for higher load than other self-lubricating Spherical Plain Bearings.
  • Applicable to large oscillating angles in circumferential oscillating motion.
  • Customized design can be made on your requirement.
spherical plain bearing
graphite spherical plain bearing
Discover the Power of Spherical Plain Bearing

Oilless Spherical Plain Bearings, Self-Lubricated

Viiplus Spherical Plain Bearings incorporate high-quality copper alloy-based metals with engineered solid lubricant plugs. which can rotate or swing in any direction.
Precise tolerances utilizing strategic plug location and plug compounds ensure performance delivery and lubrication-free service. This bearing style is available in standard inch, metric, and made-to-order sizes.

Material Structure

Stainless Steel, C45 Steel, Or Gcr15 Outer Ring.

Spherical Plain Bearing Inter Ring(CuZn25Al5, CuAl10Ni, CuSn12).

The benefits of oilless bronze bearings

Maintenance-Free Radial Graphite Spherical Bearing | Applications

Oilless graphite spherical bearings are used in a variety of industries and applications, including engineering hydraulic cylinders, forging machine tools, engineering machinery, automation equipment, automotive shock absorbers, water conservancy machinery, and other industries.

  • In the aerospace industry, spherical plain bearings are used in flight control systems, landing gear assemblies, and other critical components where high precision and reliability are essential.
  • Automotive applications for spherical plain bearings include suspension systems, steering linkages, and gearshift linkages. These bearings help improve vehicle performance, handling, and ride comfort.
  • Heavy machinery, such as construction equipment, mining machinery, and agricultural equipment, often utilize spherical plain bearings in joints and pivots.
spherical plain bearing
spherical plain bearing

Spherical Plain Bearing Unleashing Maximum Performance!

Steel Outer W/ Copper Alloy Inner – Metric Series

Most plain spherical bearings have adopted special processing methods, such as surface phosphating, galvanizing, chrome plating or outer sliding surface lining, padding, spraying, etc., so they have greater load capacity and impact resistance, and have corrosion resistance, Wear-resistant, self-aligning, well lubricated or self-lubricating without contamination by lubricating dirt

Steel spherical bearing

When the sliding surface material of self-lubricating spherical plain bearings is steel, the permissible operating temperature depends on the permissible operating temperature of the lubricant.

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Selection Of Bronze Plain Spherical Bearings

When selecting a Bronze Plain Spherical Bearings, the load size, direction, and transmission method of the spherical plain bearing, the movement mode of the spherical plain bearing, the working conditions, the lubrication method, the positioning (radial, axial), the required service life, installation, and disassembly, etc. should be fully considered. Require.

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spherical plain bearings

Plain Spherical Bearings Size Chart

Standard No.d(H7)D1(h6)BCDbAlignment Angle (α)Allowable Radial Load (kN)Allowable Thrust Load (kN)
Spherical Bearings-015152612922486.50.5
Spherical Bearings-02020321614284412.61.4
Spherical Bearings-02525422118364521.82.5
Spherical Bearings-030305027234446323.5
Spherical Bearings-03535553026494543.74.8
Spherical Bearings-04040623328554654.75.7
Spherical Bearings-04545723631624569.77.2
Spherical Bearings-05050804236704592.410
Spherical Bearings-060601005345904614316
Spherical Bearings-070701105850994518120
Spherical Bearings-0808013070601154625430
Spherical Bearings-0909014076651254631336
Spherical Bearings-10010016088751456654464
Spherical Bearings-11011017093801556564273
Spherical Bearings-120120190105901706679794
Spherical Bearings-1301302001109518065880105
Spherical Bearings-14014021090701806766856
Spherical Bearings-150150220120105200651135129
Spherical Bearings-160160230105802006889173
Spherical Bearings-1801802601058022566100274
Spherical Bearings-200200290130100250671434117
Spherical Bearings-220220320135100275681577118
Spherical Bearings-240240340140100300981720118
Spherical Bearings-260260370150110325972075143
Spherical Bearings-280280400155120350962455172
Spherical Bearings-300300430165120375972630172


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