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

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 bearing operation even under 150℃ conditions.

Technical Specifications

Parameter Specification
Dimensions (ID/OD/Width) 90mm / 160mm / 40mm
Load Capacity 245 kN Dynamic / 255 kN Static
Temperature Range -30℃ to +150℃
Precision Standard P0 (P4/P6 Available)

Key Advantages

  • Impact-Resistant: Reinforced bearing cages and optional ceramic-coated rollers enhance shock capacity by 35%.
  • Heat Resilience: 22218-HT bearing variants utilize graphite-enriched lubrication to maintain stability in 150℃+ zones.
  • Agile Delivery: Standard bearing models available for 48-hour dispatch, with bulk orders shipped globally.

Industry-Proven Applications

  • Metallurgy & Mining: 22218 bearing solutions excel in rolling mills and crushers facing heavy thermal and impact stress.
  • Port Cranes: Triple-lip sealing variants prevent abrasive dust ingress in crane slewing bearing rings.
  • Precision Machinery: P4-grade precision ensures <35dB noise operation for high-end medical equipment.

Quality & Lifecycle Support

Every bearing unit passes 12+ rigorous tests, including vibration analysis and 500-hour load cycles. We offer IoT-enabled wear monitoring and 24/7 technical support for legacy retrofits.

FAQs

Q: Can the 22218 bearing operate in corrosive environments?
A: Yes! Opt for our 22218-SE bearing variant with anti-corrosion coatings and triple-lip seals.

Q: What lubrication is best for high-speed roller bearing applications?
A: We recommend synthetic grease (NLGI 2) or solid oil films for RPMs exceeding 3,000.

Q: How does the 22218 bearing achieve longer fatigue life?
A: Advanced carburizing heat treatment and ultra-fine grain steel enhance fatigue resistance by 40%.

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