HSN's Introduction To Vibrating Screen Bearings

Creation on:2025/10/23

Related keywords : Vibrating Screen Bearings , SKF CCJA Bearings , SKF VA405 Bearings , FAG MAT41A Bearings , FAG E1T41A Bearings , Mining Screen Bearings , Replacement for SKF FAG Bearings , Industrial Screen Bearings , High acceleration bearings .

Globally renowned vibrating screen equipment manufacturers include Metso Outotec, Sandvik, Terex Corporation, Svedala, Schenck Process, and JÖST. They hold a significant position in industries such as mining, cement plants, and metallurgy. These companies typically offer various types of screening equipment, such as linear vibrating screens, circular vibrating screens, high-frequency screens, and dewatering screens.

Classification and Selection of Vibrating Screens

The classification of different types of vibrating screens mainly depends on factors such as motion trajectory, excitation method, structural design, and application scenario.
The type of vibrating screen used in different plants can be determined based on the following criteria:

(1) Material Characteristics:

Coarse particles / heavy load (≥2 mm, e.g., ores)→ Circular vibrating screen (inertial excitation)
Fine particles / high precision (≤1 mm, e.g., powders)→ Linear vibrating screen (electromagnetic or inertial excitation)
Moist or sticky materials (containing clay or water)→ Elliptical vibrating screen
Solid–liquid separation (dewatering, desliming)→ Dewatering vibrating screen

(2) Screening Requirements:

High throughput priority→ Circular vibrating screen / eccentric-shaft vibrating screen
High precision priority→ Linear vibrating screen / electromagnetic vibrating screen
Laboratory analysis→ Laboratory vibrating screen

(3) Industry Application:

Mining / Sand and Gravel→ Mining circular vibrating screen
Chemical / Food industry→ Precision linear vibrating screen (fully enclosed type)
Environmental protection / Coal washing→ Dewatering vibrating screen

Vibrating Screen Bearings Used in Ore Processing

In ore processing applications, the common bearing types used in vibrating screens are Spherical roller bearings and Single-row Cylindrical roller bearings. Among them, Spherical roller bearings are particularly prone to damage. The main analysis is as follows:

Vibratory applications induce accelerations of the rollers and cages in the bearings This puts extra demands on the bearing design.

Spherical roller bearings: Spherical roller bearings for vibratory applications can withstand considerably higher accelerations than corresponding standard bearings The permissible acceleration depends on the lubricant and the mode of acceleration.They can accommodate both radial and axial loads, making them ideal for vibrating and harsh environments. Features an inner ring, an outer ring, and a set of spherical rolling elements. The spherical design helps them compensate for any misalignment or shaft deflection, which is crucial in vibrating screen operations.

Bearing Solutions for Vibrating Screens

SKF and FAG have been upgrading their bearing designs to address the operating conditions of vibrating screens. For example, to reduce impact loads from shafts on the bearing inner diameter, they are adding additional coatings to the inner diameter. Two main approaches are being used: hard coatings and flexible coatings. These coatings are already being put into practical use.

Flexible coatings are more widely used, and HSN has also invested in research and development of flexible coatings. The first batch of samples has been shipped to customer sites for testing.

Furthermore, most application sites haven’t chosen new bearings with internal diameter coatings, with the market primarily relying on existing bearing structures, such as FAG’s MAT41A and E1T41A and SKF’s CCJA and VA405. Bearings for vibrating screens have stricter standards than general-purpose bearings in terms of raw material selection, component structural optimization, and manufacturing precision.

With extensive experience in manufacturing vibrating screen bearings, HSN can fully replace SKF and FAG products, offering top-quality bearings with a service life exceeding one year.

For any Vibrating screen bearing procurement needs, please contact our sales department.

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