Zibo Najie International Trade Co.,Ltd.
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Engineered for Extreme Conditions: High-Performance Double Row Spherical Roller Bearings
Our double row spherical roller bearings are the ultimate solution for applications demanding exceptional radial load capacity and operational reliability under the toughest conditions. Designed with an innovative spherical outer ring raceway and symmetrical barrel-shaped rollers, they excel in environments where shaft deflection, misalignment, and heavy shocks are inevitable.
The self-aligning capability (typically up to 1.5° - 3°) allows the bearing to automatically compensate for static and dynamic misalignment between the shaft and housing. This critical feature significantly reduces friction, heat generation, and premature wear, leading to dramatically extended service life and reduced maintenance costs for your machinery.
We utilize advanced manufacturing techniques and premium-grade steel to ensure every bearing meets the highest standards of precision and durability. Many of our models come with standard features like a centrifugal cast brass cage for superior strength and guidance, and the W33 lubrication groove and hole for efficient re-lubrication, ensuring optimal performance even in continuous operation.
1.Automatic centre adjustment design:Compensates for misalignment, protecting your equipment from excessive stress.
2.Ultra-high carring capacity: Double row roller design handles very heavy radial loads and moderate axial loads from both directions.
3.Strong and durable: Made from high-carbon chromium steel (GCr15/52100) through forging and heat treatment for superior toughness.
4.Optimised lubrication:Optional W33 code provides lubrication groove and holes for easy maintenance and longer life.
5.Multiple retention frame options:Brass cage for high-speed and high-temperature, steel cage for heaviest loads, polymer cage for reduced weight and corrosion resistance.
6.Low friction operation:Precision grinding ensures smooth operation and reduces energy consumption.
· Material Handling: Vibrating screens, crushers, conveyors.
· Paper Industry: Dryer cylinders, pulp machinery.
· Marine & Shipbuilding: Propeller shafts, deck cranes.
· Wind Energy: Main shafts and gearboxes of wind turbines.
· Construction Machinery: Cranes, excavators.
· Mining & Metallurgy: Rolling mills, large gearboxes.
· Oil & Gas: Pumps, compressors.
· Manfacturer 's direct supply: We are a factory with over 33 years of experience, ensuring competitive prices.
· Strict quality control: From raw material to finished product, every step is monitored under ISO 9001:2015 system.
· Full service: We provide technical support, custom design (non-standard sizes), and OEM services.
· Global supply: We have exported our bearings to over 20 countries and have earned a reputation for reliability.
· Complete inventory: Large inventory of standard models ensures fast delivery.