/ Spherical roller bearings

22218 bearing

1.Product Introduction: The 22218 model is a double-row self-aligning roller bearing, mainly bearing radial loads, capable of compensating for ±2° installation deviations, and suitable for medium and heavy-load scenarios.
2.Structure Type: The inner ring has a spherical raceway, the outer ring has double ribs, with double-row spherical rollers + stamped steel cage, and an open structure.
3.Size Range: Inner diameter 90mm, outer diameter 160mm, width 40mm.
4.Material: Inner ring / outer ring: GCr15 bearing steel, rollers: GCr15 bearing steel, cage: stamped steel.
5.Precision: Conventional P0 level, precision version is P6 level.
6.Common Inner Tapered Hole: Optionally with a 1:12 tapered hole (suitable for a shaft diameter of 90mm), and the conventional one is a straight hole.
7.Application Fields: Electric motor spindles, reducers, mining machinery, paper-making equipment.
8.Key Inspection Items: Radial clearance, self-aligning angle, dimensional accuracy, consistency of roller arrangement.
Product Description
Data Sheet

22218 Bearing Spherical Roller for Heavy Industrial Equipment – High-Temperature Resistance (150℃+), Extreme Load Capacity, and Extended Service Life

When your heavy machinery faces extreme radial loads, misalignment challenges, or high-temperature environments, the 22218 bearing delivers unmatched reliability. Designed for metallurgical, mining, and port equipment, this double-row spherical roller bearing combines a self-aligning design (±2° compensation) with robust construction to withstand dynamic loads up to 245 kN. Its open structure, precision-ground raceways, and high-purity GCr15 steel ensure smooth operation even under 150℃ conditions.

Key Specifications & Technical Parameters

  • Dimensions: 90mm (Inner Diameter) × 160mm (Outer Diameter) × 40mm (Width)
  • Load Capacity: Dynamic 245 kN | Static 255 kN
  • Temperature Range: -30℃ to +150℃ (customizable for higher thresholds)
  • Precision: Standard P0 | High-Precision P4/P6 (ISO 492)
  • Material: GCr15 bearing steel with carburizing heat treatment (60-64 HRC hardness)
  • Cage: Stamped steel for durability and reduced friction

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Built for Heavy-Duty Performance

1. Metallurgy & Mining Applications

The 22218 spherical roller bearing excels in rolling mills, crushers, and sintering machines where heavy loads, thermal stress, and shaft misalignment are common. Our triple-lip sealing variants (22218-SE) prevent abrasive dust ingress, extending service life by 30% in mining conveyors.

2. High-Temperature Resilience

Specially heat-treated versions (22218-HT) withstand furnace-side applications up to 150℃ using graphite-enriched lubrication. Precision grinding reduces surface roughness to ≤0.2μm, minimizing friction-induced heat buildup.

3. Impact-Resistant Design

Reinforced cages and ceramic-coated rollers (optional) enhance shock load capacity by 35% for port cranes and mining drills exposed to sudden force spikes.

Customization to Match Your Needs

  • Material Upgrades: SUJ2 steel or ceramic rollers for corrosive/chemical environments
  • Sealing Solutions: Labyrinth seals or triple-lip designs for dusty conditions
  • Lubrication: High-temperature grease, solid oil films, or food-grade options
  • Tapered Holes: 1:12 taper adapters for simplified installation on 90mm shafts

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Rigorous Quality Assurance

Every 22218 bearing undergoes 12+ tests, including:

  • Vibration Analysis: <4.5 μm amplitude
  • Noise Testing: <35 dB for medical-grade applications
  • Lifespan Simulation: 500-hour accelerated load cycles
  • Dimensional Accuracy: ±0.01mm tolerance

Certifications: ISO 9001, CE, GOST (available upon request).

Bulk Order Advantages

  • Stock Availability: 5,000+ units ready for 48-hour dispatch
  • MOQ Flexibility: As low as 50 units for new clients
  • Global Logistics: Regional hubs in EU, Asia, and North America ensure 72-hour emergency delivery

Technical Support & Services

  • Bearing Selection Guidance: Share your operating parameters (load, RPM, environment) for tailored solutions
  • Predictive Maintenance: IoT-enabled wear monitoring and vibration analysis
  • 24/7 Support: On-call engineers for installation troubleshooting

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FAQ

Q: Can the product operate in humid or corrosive environments?

A: Yes! Opt for our 22218-SE variant with anti-corrosion coatings and triple-lip seals.

Q: What lubrication is best for high-speed applications?

A: We recommend synthetic grease (NLGI 2) or solid oil films for RPMs exceeding 3,000.

Q: Do you provide CAD models for customizations?

A: Absolutely. Share your equipment specs or OEM drawings for precision-matched designs.

Q: How does your product achieve longer fatigue life?

A: Advanced carburizing heat treatment and ultra-fine grain steel enhance fatigue resistance by 40%.

Q: What’s the lead time for 1,000+ units?

A: Standard orders ship in 7-15 days. Repeat clients enjoy 30% faster production.

Contact Us

Optimize Your Machinery's Performance Today

Email your requirements to sales@inno-bearing.com for a 22218 bearing solution tailored to your load, speed, and environmental conditions. Our engineers will respond within 4 hours with technical specs, pricing, and delivery options.

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