Product Introduction

Vibrating screen bearings are specialized rolling bearings designed to withstand the extreme operating conditions of vibrating screens, which are widely used in mining, construction, and aggregate industries. These bearings are engineered to handle high loads, severe vibrations, and harsh environments while ensuring long service life and minimal maintenance.

Key Features & Advantages

Robust Construction: Vibrating screen bearings are built with high-quality chromium steel or other advanced alloys, providing exceptional strength and durability. The material ensures resistance to wear, fatigue, and impact loads.
Special Cage Design: The bearings feature a reinforced cage, typically made of brass or polyamide, to prevent misalignment and reduce friction under high-vibration conditions.
Optimal Lubrication: These bearings are pre-lubricated with high-temperature grease, ensuring smooth operation even under heavy loads and prolonged use. Some models come with relubrication features for extended service intervals.
Enhanced Sealing: Advanced sealing solutions, such as triple-lip seals or labyrinth designs, protect against dust, moisture, and contaminants, significantly improving reliability in harsh environments.
Precision Engineering: The bearings are manufactured to tight tolerances, ensuring consistent performance and reducing the risk of premature failure due to misalignment or uneven load distribution.

Applications

Vibrating screen bearings are essential components in:

Mining and mineral processing equipment
Quarry and aggregate screening systems
Construction and demolition recycling plants
Chemical and fertilizer industry machinery
Food processing and pharmaceutical vibrating screens

Why Choose Our Vibrating Screen Bearings?

Our bearings undergo rigorous quality control, including vibration testing, load endurance checks, and thermal stability assessments. With advanced manufacturing techniques and premium materials, we ensure superior performance, extended lifespan, and reduced downtime for industrial operations.

For optimal performance, always select bearings that match your equipment's specifications regarding load, speed, and environmental conditions. Proper installation and regular maintenance further enhance durability.

Technical Parameters

Bore Diameter (d):	Ranges from 20 mm to 200 mm, catering to various screen sizes and load requirements.
Outer Diameter (D):	Typically between 47 mm and 400 mm, designed to fit standard vibrating screen housings.
Width (B):	Varies from 14 mm to 108 mm, providing optimal load capacity for different applications.
Dynamic Load Rating (C):	Up to 300 kN, ensuring reliable performance under heavy shock loads.
Static Load Rating (C₀):	Up to 200 kN, offering stability during startup and shutdown phases.
Speed Limit:	Depending on the design, some bearings can operate at speeds up to 3,000 RPM.
Operating Temperature Range:	-30°C to +150°C, making them suitable for extreme environments.
Vibration Resistance:	Specially designed to endure constant vibration frequencies between 15 Hz and 30 Hz.

Parameter Category	Technical Index	International Standard Compliance
Material & Heat Treatment	Bearing Steel: High-strength chrome-carbon steel	ASTM A295 (Standard for Alloy Steel for Industrial Applications)
Material & Heat Treatment	Heat Treatment: Deep carburizing quenching	ISO 6509 (Heat Treatment Process Classification)
Hardness	Surface Hardness: HRC 62-64Core Hardness: HRC 38-42	ISO 6508-1 (Rockwell Hardness Testing)
Structural Design	Bearing Type: Double-row self-aligning roller	ISO 15 (Bearing Type Classification)
Load Capacity	Radial Load Rating: 900kNAxial Load Rating: 300kN	ISO 281 (Bearing Dynamic Load Rating Calculation)
Alignment Compensation	Angular Misalignment: ±1.5°	-
Precision	Dimensional Accuracy: ISO P5 ClassRadial Runout: ≤10μm	ISO 492 (Tolerance Classes for Rolling Bearings)
Sealing System	Seal Type: Double-lip contact sealProtection Class: IP67	IEC 60529 (Degrees of Protection Provided by Enclosures)
Lubrication Performance	Lubricant: Food-grade grease (NSF H1 certified)Dust Blocking Rate: ≥99.9%	NSF H1 (Food Contact Material Safety); ISO 4406-19/15 (Cleanliness)
Service Life	L10 Rated Life: >15,000 hours (under rated vibration load)	ISO 281 (Bearing Life Calculation)
Size Range	Shaft Diameter: 20-400mm (customizable for non-standard requirements)	ISO 3449 (Earth-Moving Machinery Safety Requirements)
Certifications	Quality Management: IATF 16949, ISO 9001Material Compliance: ASTM A295	IATF 16949 (Automotive Quality Management), ISO 9001 (General Quality)
Testing Standards	Inspection: 100% vibration fatigue testMethod: Fluorescent penetrant inspection	ISO 281 (Bearing Life Testing); ISO 3452-2 (Non-destructive Testing)