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Spherical Plain Bearings
Enhance your machinery’s performance with our spherical plain bearings, ensuring smooth operation, compatibility, and cost-effective upgrades. Upgrade your equipment today for exceptional results!
Selecting the ideal bearing for your specific application can be a challenging task. With an extensive array of bearing types and sizes to choose from, to understand the various options available now!
Bearing maintenance is important to keep bearings running properly in a variety of applications. Our Self-lubricating bearings are oil-free & maintenance-free
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.
The Role of Spherical Plain Bearings in Reducing Friction and Wear
When it comes to heavy-duty industrial machinery, construction equipment, and high-load applications, Spherical Plain Bearings (also known as spherical bearings or rod end bearings) are essential components for ensuring smooth operation and reliability. As a factory manufacturer of self-lubricating spherical bearings, we provide high-performance, long-lasting solutions designed to improve efficiency and reduce maintenance costs.
▪ Material Types
- Inner/Outer Rings: High-strength alloy steel, stainless steel
- Sliding Layer: PTFE (Polytetrafluoroethylene), fiber-reinforced composites
- Lubrication: Solid lubricants (e.g., graphite, molybdenum disulfide)
Spherical Plain Bearing Manufacturer
Experience the pinnacle of quality with our exceptional range of spherical plain bearings. Designed to meet diverse requirements, our bearings are readily available for purchase through our convenient online store. Customization options allow you to tailor the dimensions to your exact specifications. Additionally, we offer prompt delivery of unique designs upon request, showcasing our extensive expertise spanning over four decades in plain bearing technology.
Spherical plain bearings, as machine elements, adhere to stringent industry standards. These bearings facilitate smooth sliding contact between the inner and outer rings. Excelling in rotary, tilting, and swiveling movements, they demonstrate remarkable resilience against shocks, impacts, and vibrations. This makes them a preferred choice for reliable load-bearing and guiding functions.
Spherical Plain Bearing Inner Ring Plugged Graphite Size Chart
| Code | d H7 | D1 h6 | B | C | D | b | Alignment angle a |
|||
| Spherical Bearings | 015 | 15 | 0.018/0 | 26 | 0 / -0.013 | 12 | 9 | 22 | 4 | 8 |
| 020 | 20 | 0.021/0 | 32 | 0 / -0.016 | 16 | 14 | 28 | 4 | 4 | |
| 025 | 25 | 0.018/1 | 42 | 0 / -0.016 | 21 | 18 | 36 | 4 | 5 | |
| 030 | 30 | 0.021/1 | 50 | 0 / -0.016 | 27 | 23 | 44 | 4 | 6 | |
| 035 | 35 | 0.018/2 | 55 | 0 / -0.019 | 30 | 26 | 49 | 4 | 5 | |
| 040 | 40 | 0.021/2 | 62 | 0 / -0.019 | 33 | 28 | 55 | 4 | 6 | |
| 045 | 45 | 0.018/3 | 72 | 0 / -0.019 | 36 | 31 | 62 | 4 | 5 | |
| 050 | 50 | 0.021/3 | 80 | 0 / -0.019 | 42 | 36 | 70 | 4 | 5 | |
| 060 | 60 | 0.018/4 | 100 | 0 / -0.022 | 53 | 45 | 90 | 4 | 6 | |
| 070 | 70 | 0.021/4 | 110 | 0 / -0.022 | 58 | 50 | 99 | 4 | 5 | |
| 080 | 80 | 0.018/5 | 130 | 0 / -0.022 | 70 | 60 | 115 | 4 | 6 | |
| 090 | 90 | 0.021/5 | 140 | 0 / -0.025 | 76 | 65 | 125 | 4 | 6 | |
| 100 | 100 | 0.018/6 | 160 | 0 / -0.025 | 88 | 75 | 145 | 6 | 6 | |
| 110 | 110 | 0.021/6 | 170 | 0 / -0.025 | 93 | 80 | 155 | 6 | 5 | |
| 120 | 120 | 0.018/7 | 190 | 0 / -0.029 | 105 | 90 | 170 | 6 | 6 | |
| 130 | 130 | 0.021/7 | 200 | 0 / -0.029 | 110 | 95 | 180 | 6 | 5 | |
| 140 | 140 | 0.018/8 | 210 | 0 / -0.029 | 90 | 70 | 180 | 6 | 7 | |
| 150 | 150 | 0.021/8 | 220 | 0 / -0.029 | 120 | 105 | 200 | 6 | 5 | |
| 160 | 160 | 0.018/9 | 230 | 0 / -0.029 | 105 | 80 | 200 | 6 | 8 | |
| 180 | 180 | 0.021/9 | 260 | 0 / -0.032 | 105 | 80 | 225 | 6 | 6 | |
| 200 | 200 | 0.018/10 | 290 | 0 / -0.032 | 130 | 100 | 250 | 6 | 7 | |
| 220 | 220 | 0.021/10 | 320 | 0 / -0.036 | 135 | 100 | 275 | 6 | 8 | |
| 240 | 240 | 0.018/11 | 340 | 0 / -0.036 | 140 | 100 | 300 | 9 | 8 | |
| 260 | 260 | 0.021/11 | 370 | 0 / -0.036 | 150 | 110 | 325 | 9 | 7 | |
| 280 | 280 | 0.018/12 | 400 | 0 / -0.036 | 155 | 120 | 350 | 9 | 6 | |
| 300 | 300 | 0.021/12 | 430 | 0 / -0.040 | 165 | 120 | 375 | 9 | 7 | |
Enhanced ride quality and stability of Your Spherical Plain Bearings
To ensure optimal performance and longevity, the sliding surfaces of spherical plain bearings can be enhanced with various protective measures. These include the application of molybdenum disulfide (MoS2), hard chromium plating, or a bronze liner, effectively reducing wear and friction. Furthermore, both the outer and inner rings can undergo phosphate coating, significantly bolstering their corrosion resistance. For added convenience, these bearings are available with an annular groove and lubrication holes, enabling seamless maintenance. In certain bearing designs, seals can be incorporated to safeguard against contamination, ensuring reliable operation even in challenging environments.
| SIZE | JDB-1 | JDB-2 | JDB-22 | JDB-23 | JDB-3 | DB-4 | JDB-5 |
|---|---|---|---|---|---|---|---|
| GB1776-87 | ZCuZn25 Al6Fe3Mn3 | ZCuSn6Zn6Pb3 | ZCuAl10Fe3 | ZCuSu10P1 | Steel+ ZCuSn6Zn6Pb3 | HT250 | GCr15 |
| ISO1338 | GCuZn25 Al6Fe3Mn3 | GCuSn6Zn6Pb3 | GCuAl10Fe3 | – | Steel+ CuSn6Zn6Pb3 Fe3Ni5 | – | B1 |
| DIN | G-CuZn25 Al5 | GB-CuSn5Zn5Pb5 | GB-CuAl10Ni | GB-CuSn10 | Steel+ CuSn6Zn6Pb3Ni | – | 100Cr6 |
| JIS | HBsC4 | BC6 | AIBC3 | BC3 | BC6 | FC250 | SUJ2 |
| ASTM/UNS | C86300 | C83600 | C95500 | C90500 | C83600 | Class40 | 52100 |
| (BS) | HTB2 | LG2 | AB1 | PB4 | LG2 | – | – |
Key Advantages of Self-Lubricating Spherical Bearings
- Maintenance-Free Operation:
Our self-lubricating spherical bearings are embedded with solid lubricants, eliminating the need for external lubrication. This feature is especially beneficial for hard-to-reach or harsh environments, reducing downtime and maintenance costs. - High Load Capacity:
Designed to withstand heavy radial, axial, and combined loads, these bearings are perfect for applications requiring exceptional strength and durability. - Corrosion and Wear Resistance:
Made from high-quality materials such as alloy steel, stainless steel, and specialized coatings, our bearings perform reliably in high-temperature, humid, or corrosive environments. - Low Friction, High Efficiency:
The self-lubricating properties significantly reduce friction, improving operational efficiency and reducing energy consumption. - Long Service Life:
Precision engineering and optimized design ensure extended bearing life, even under extreme operating conditions.

What Are Spherical Plain Bearings?
Spherical plain bearings, also known as spherical plain bushings or spherical plain joints, are self-aligning plain bearings designed to accommodate angular misalignment. They consist of an inner ring, an outer ring, and a spherical sliding contact surface. These bearings are commonly used in applications where misalignment or oscillating movements occur.
A typical spherical plain bearing comprises an inner ring with an inner bore, an outer ring with an outer surface, and a sliding contact surface. The sliding contact surface may be lined with various materials to enhance performance, and one such material is graphite.
Radial Spherical Plain Bearing
Radial spherical plain bearings have been meticulously crafted to handle predominantly radial loads, demonstrating excellent adaptability to angular misalignments. These bearings consist of an inner and outer ring, with a spherical sliding surface nestled between them. Due to their exceptional attributes, radial spherical plain bearings find widespread application in scenarios involving oscillating movements, ensuring minimal friction and facilitating smooth motion.
We offer a wide range of sizes and configurations to meet the specific needs of your damper applications.
Radial Spherical Plain Bearings Used In Forklift Trucks
Radial spherical plain bearings are utilized in several components of the steering assembly for forklift trucks. These components include the articulated steering axle, drag link, and kingpin. The purpose of these bearings is to enable smooth and efficient movement, allowing for precise steering and maneuverability of the forklift truck.
Textile Industry Solution
In the textile industry, metric radial-type spherical plain bearings are employed in heavy-duty extractors. These bearings serve a specific purpose in this application, namely, to accommodate misalignment in the suspension rods. By utilizing these bearings, the extractor can effectively absorb any misalignment, ensuring smooth operation and reducing stress on the equipment. This helps to maintain the reliability and performance of the extractor in the demanding textile industry environment.

High-performance spherical bearing for mining equipment









