Spherical plain bearings
In assemblies operating under high loads and low rotational speeds, spherical plain bearings are the most effective solution. They are compact, easy to install and maintain, and can be selected for a wide range of mechanisms and operating tasks.
Size range
A wide range of sizes allows you to purchase products for your specific loads, ensuring the optimal balance between the technical characteristics and spherical plain bearings price.
- Bore diameter: from 6 to 1000 mm
- Outside diameter: from 14 to 1320 mm
- Bearing width: from 5 to 438 mm
The full-size range is available in the NTE technical catalogue.
Design and operating principle
A spherical plain bearing consists of inner and outer rings with mating spherical surfaces that slide smoothly against each other. This design allows it to independently compensate for shaft misalignment or installation inaccuracies. As a result, the bearing can accommodate both radial and axial loads.
The working surfaces of the bearing form an optimal friction pair, ensuring minimal friction and wear. Various material combinations are possible:
- steel / steel – requires regular lubrication;
- steel/bronze or special bronze – self-lubricating;
- steel / PTFE (fabric or composite) and chrome / PTFE composite – practically maintenance-free.
Lubricant ensures smooth movement, and seals (if necessary) protect the bearing from dust and dirt.
Technical specifications
In spherical plain bearings catalog by NTE you can find options for various operating conditions:
- Maximum rotational speed: not very high, which allows the bearing to withstand high loads and serve for a long time.
- Operating temperature range – serial products operate stably at temperatures up to +120°C.
- Basic dynamic load rating – up to 40,500 kN. This allows for the creation of powerful structures with precise and stable movement and minimizes misalignment.
Current values for speed, loads, and temperatures are shown in the NTE technical parameters table.
Industrial аdvantages
NTE spherical plain bearings are selected for industrial use due to the following key benefits:
- Reliability under high loads – the high basic dynamic load capacity of NTE bearings allows them to be used in powerful and heavy mechanisms.oad rating – up to 40,500 kN. This allows for the creation of powerful structures with precise and stable movement and minimizes misalignment.
- Stable performance under misalignment – self-aligning inner rings reduce stress concentrations and simplify mechanical design.
- Long service life without additional maintenance – matched friction pairs and lubricant ensure a long bearing service life, reducing operating costs.
- Flexible installation – a wide selection of series (ES, HS, CR, QCR) and compact designs facilitate integration into existing assemblies.
Fields of application
NTE offers spherical plain bearing wholesale primarily for the following industries:
- Construction and mining equipment: excavators, cranes, bulldozers, drilling rigs.
- Agricultural machinery: tractors, harvesters, seeders.
- Metallurgical and machine-building equipment: presses, rolling mills, heavy machine tools.
- Energy sector: wind turbines, pumping stations, hydro and thermal power units.
Spherical plain bearings are also widely used in automotive, transport, and logistics applications where motion accuracy and durability are critical.
Spherical plain bearings types
You can buy spherical plain bearing by NTE of both types, depending on the task and operating conditions:
- Radial bearings – designed to withstand loads perpendicular to the shaft axis, suitable for assemblies with low and medium rotation speeds.
- Thrust bearings – designed to operate under axial loads and guarantee positioning accuracy.
Why choose NTE
- Stable supply – reduced waiting times.
- Quality assurance – certified products and multi-stage inspection.
- Flexible terms of cooperation – the option to buy bearings wholesale, discounts, and tailored offers.
- Extensive product range – multiple sizes and designs available.
The use of these components is economically efficient and enhances the reliability of the entire mechanism. Choose NTE spherical plain bearings with delivery through distributors and get guaranteed quality and the optimal solution for your equipment!
Take advantage of favorable terms and support - become an NTE distributor today!
We offer bearings compliant with international quality standards. NTE products are manufactured at certified facilities, undergo strict inspection, and combine durability, precision, and stable performance. Their high quality is confirmed by experience in automotive, electrical engineering, machine building, and metallurgical industries.
What we offer distributors:
- Professional technical support
- Certificates & documentation
- Special purchase prices
- Convenient terms of cooperation
- Ongoing support
- Easy interaction
Contact us by email – become an NTE partner today!