22228 Bearing

1.Product Introduction: The 22228 model is a double-row self-aligning roller bearing, suitable for heavy loads and used in large equipment.
2.Structure Type: The inner ring has a spherical raceway, the outer ring has double ribs, with double-row rollers + brass cage, and it is open.
3.Size Range: Inner diameter 140mm, outer diameter 250mm, width 68mm.
4.Material: Inner ring / outer ring: GCr15 bearing steel, rollers: GCr15 bearing steel, cage: brass.
5.Precision: P0/P6 level.
6.Common Inner Tapered Hole: The standard configuration allows an optional 1:12 tapered hole (suitable for a shaft diameter of 140mm).
7.Application Fields: Large electric motors, rolling mills, port machinery, heavy-duty fans.
8.Key Inspection Items: Radial load-bearing capacity, forging flaw detection, self-aligning performance.

Product Description

22228 Bearing Spherical Roller – Engineered for Heavy Loads & Extreme Temperatures

When your machinery faces relentless heat, shock loads, and abrasive conditions, the 22228 bearing stands as your reliable solution. Designed for large-scale industrial applications like steel mills and port machinery, this self-aligning roller bearing combines 150°C heat resistance, a 450kN dynamic load capacity, and ISO P4 precision. Its self-aligning design compensates for shaft misalignment, ensuring smooth operation even under extreme stress. With <35dB noise levels and a brass cage for enhanced durability, the 22228 bearing model outperforms standard models in lifespan by 40% under harsh conditions.

Technical Specifications

Parameter Specification
Dimensions 140mm (ID) x 250mm (OD) x 68mm (Width)
Load Capacity 450 kN Dynamic / 580 kN Static
Temperature Range -30°C to +150°C (Peak: 200°C)
Precision Grade P0/P6 (Customizable to P4)

Key Features

  • Triple-Hardened Components: Raceways undergo carburizing, quenching, and tempering to prevent micro-cracks in 22228 bearing units.
  • Proactive Quality Control: 12+ tests per roller bearing unit, including vibration analysis and salt spray testing.
  • Rapid Bulk Production: Dedicated lines for orders exceeding 500 units, cutting bearing lead times by 30%.

Industry-Proven Applications

  • Steel Production: Supports rolling mill gearboxes exposed to molten metal splashes (up to 150°C).
  • Port Machinery: 22228 bearing handles uneven loads in crane slewing rings during 24/7 operations.
  • Mining Equipment: Withstands high impact loads in crushers and conveyor systems using abrasive-dust-resistant designs.

Quality & Logistics

Our Spherical Roller Bearings are manufactured under a strict triple-inspection system, including ultrasonic testing and automated micron-level grinding monitoring. We offer 48-hour emergency shipping globally and IoT-based maintenance plans.

FAQs

Q: How does the 22228 bearing handle 200°C heat in steel mills?
A: Our high-purity GCr15 steel retains hardness at elevated temperatures, while graphite-stabilized bearing cages prevent thermal expansion.

Q: Can I get non-standard dimensions for legacy bearing equipment?
A: Yes! We modify inner/outer diameters and widths within 72 hours.

Q: Do you offer installation support for your roller bearing products?
A: Our engineers provide video-guided mounting tutorials or on-site assistance for complex bearing setups.

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