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.
Bearing Selection
A wide range of bearing types and sizes are available to help you select the right bearing for your application.
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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Tilt Angle
The inclination angle of the spherical plain bearing is much larger than that of the general adjustable rolling bearing, and it is very suitable for use in the supporting parts with low concentricity requirements. The inclination angle of the spherical plain bearing varies with the size, type, sealing device and support form of the bearing structure
Cooperate
In any case, the selected fit of the spherical plain bearing shall not cause uneven deformation of the ring, and the selection of its fit and grade must be determined according to the working conditions such as bearing type, support form and load size.
Loading And Unloading
The assembly and disassembly of spherical plain bearings should follow the following principles, that is, the force exerted by assembly and disassembly cannot be transmitted directly through the spherical sliding surface. In addition, auxiliary loading and unloading tools, such as sleeves, disassemblers, etc., should be used to directly and uniformly apply the loading and unloading force exerted by the outside to the matching ferrule, or use auxiliary methods such as heating for unloaded loading and unloading.

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


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.


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 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.
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.

Plain Spherical Bearings Size Chart
Standard No. | d(H7) | D1(h6) | B | C | D | b | Alignment Angle (α) | Allowable Radial Load (kN) | Allowable Thrust Load (kN) |
Spherical Bearings-015 | 15 | 26 | 12 | 9 | 22 | 4 | 8 | 6.5 | 0.5 |
Spherical Bearings-020 | 20 | 32 | 16 | 14 | 28 | 4 | 4 | 12.6 | 1.4 |
Spherical Bearings-025 | 25 | 42 | 21 | 18 | 36 | 4 | 5 | 21.8 | 2.5 |
Spherical Bearings-030 | 30 | 50 | 27 | 23 | 44 | 4 | 6 | 32 | 3.5 |
Spherical Bearings-035 | 35 | 55 | 30 | 26 | 49 | 4 | 5 | 43.7 | 4.8 |
Spherical Bearings-040 | 40 | 62 | 33 | 28 | 55 | 4 | 6 | 54.7 | 5.7 |
Spherical Bearings-045 | 45 | 72 | 36 | 31 | 62 | 4 | 5 | 69.7 | 7.2 |
Spherical Bearings-050 | 50 | 80 | 42 | 36 | 70 | 4 | 5 | 92.4 | 10 |
Spherical Bearings-060 | 60 | 100 | 53 | 45 | 90 | 4 | 6 | 143 | 16 |
Spherical Bearings-070 | 70 | 110 | 58 | 50 | 99 | 4 | 5 | 181 | 20 |
Spherical Bearings-080 | 80 | 130 | 70 | 60 | 115 | 4 | 6 | 254 | 30 |
Spherical Bearings-090 | 90 | 140 | 76 | 65 | 125 | 4 | 6 | 313 | 36 |
Spherical Bearings-100 | 100 | 160 | 88 | 75 | 145 | 6 | 6 | 544 | 64 |
Spherical Bearings-110 | 110 | 170 | 93 | 80 | 155 | 6 | 5 | 642 | 73 |
Spherical Bearings-120 | 120 | 190 | 105 | 90 | 170 | 6 | 6 | 797 | 94 |
Spherical Bearings-130 | 130 | 200 | 110 | 95 | 180 | 6 | 5 | 880 | 105 |
Spherical Bearings-140 | 140 | 210 | 90 | 70 | 180 | 6 | 7 | 668 | 56 |
Spherical Bearings-150 | 150 | 220 | 120 | 105 | 200 | 6 | 5 | 1135 | 129 |
Spherical Bearings-160 | 160 | 230 | 105 | 80 | 200 | 6 | 8 | 891 | 73 |
Spherical Bearings-180 | 180 | 260 | 105 | 80 | 225 | 6 | 6 | 1002 | 74 |
Spherical Bearings-200 | 200 | 290 | 130 | 100 | 250 | 6 | 7 | 1434 | 117 |
Spherical Bearings-220 | 220 | 320 | 135 | 100 | 275 | 6 | 8 | 1577 | 118 |
Spherical Bearings-240 | 240 | 340 | 140 | 100 | 300 | 9 | 8 | 1720 | 118 |
Spherical Bearings-260 | 260 | 370 | 150 | 110 | 325 | 9 | 7 | 2075 | 143 |
Spherical Bearings-280 | 280 | 400 | 155 | 120 | 350 | 9 | 6 | 2455 | 172 |
Spherical Bearings-300 | 300 | 430 | 165 | 120 | 375 | 9 | 7 | 2630 | 172 |
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