Spherical roller bearing 22220-E1

Description

1. Product Overview

Spherical roller bearing 22220-E1 is a heavy-duty, double-row rolling element bearing engineered for high radial loads and moderate axial loads in both directions. It is primarily used in rotating equipment—gearboxes, industrial gear drives, paper and pulp machinery, mining conveyors, and heavy electric motors—where shaft misalignment and shock loads are common. The bearing’s design delivers superior load distribution, extended service life, and reduced maintenance through robust cage geometry and precision heat-treated rolling elements. Strategically, this bearing reduces unplanned downtime and total cost of ownership for mission-critical rotating assets, making it a high-impact component in industrial supply chains.

2. Key Specifications & Technical Characteristics

• Bearing type: Spherical roller bearing, double-row, self-aligning.

• Model: 22220-E1 (standard internal geometry).

• Material (rings & rollers): Through-hardened bearing steel (AISI 52100 / ISO 683-17 equivalent).

• Cage material: Machined brass or steel (depending on order specification).

• Heat treatment: Precision induction/through hardening with controlled tempering for core toughness.

• Surface finish: Ground raceways, micro-polished rollers for low friction.

• Hardness: Raceway surface hardness typically 60–64 HRC after heat treatment.

• Dimensional tolerances: Manufactured to ISO/ABEC tolerances per order (standard ISO P6 or P5 available).

• Load ratings: Dynamic and static load ratings per ISO 281 (specific values available on request with batch code).

• Lubrication: Grease pre-filled option available; oil lubrication compatible.

• Seals/shields: Open standard; sealed variants (RS, 2RS) available upon request.

• Operating temperature range: -30°C to +120°C standard; high-temp variants upon request.

• Speed rating: Dependent on lubrication and sealing; detailed rpm ratings provided per operating conditions.

• Physical characteristics: Metallic component; typical mass and dimensions per 22220-E1 standard (outer diameter 180 mm, bore 100 mm, width 38 mm — verify with datasheet).

• Packaging: Industrial protective packaging with corrosion inhibitor; palletized crates or flip-top wooden boxes for bulk.

• Shelf life: Indefinite when stored in dry, indoor conditions; recommended storage humidity <60% and temperature 5–30°C.

• Traceability: Batch numbering and heat-treatment trace provided with shipment.

3. Core Industrial Applications

• Heavy machinery & mining: Used in gearboxes, crusher drives and conveyor systems where high radial loads, shock loads, and shaft deflection occur. The self-aligning feature maintains performance under misalignment, reducing bearing failures.

• Power generation & wind: Applied in generator bearings and main shafts where reliability and long service intervals are critical. Lower friction and robust roller geometry increase energy efficiency and reduce downtime.

• Pulp & paper and steel rolling mills: Handles combined loads and contamination-prone environments; hardened surfaces and sealing options provide extended life under abrasive conditions.

• Marine & construction equipment: Ideal for propulsion systems and hydraulic drives that experience heavy loads and transient shocks.

• Advantages over alternatives: Compared with single-row deep-groove or cylindrical bearings, the 22220-E1 tolerates misalignment and higher radial/axial load combinations, reducing the need for precision shaft alignment and enabling simplified equipment design, lower maintenance frequency, and lower lifecycle cost.

4. Competitive Advantages

• Quality consistency: Manufactured to industry-standard ISO tolerances with metallurgical and dimensional QA; batch-level heat-treatment traceability.

• Supply reliability: Industrial-scale production capacity with scheduled allocations for long-term contracts; safety stock available to support critical spares programs.

• Logistics capability: Export-grade packaging, container-loading optimization, and partner freight solutions for expedited and consolidated shipments to global B2B customers.

• Price competitiveness: Tiered pricing available by volume (MOQ and negotiated long-term agreements), enabling favorable landed cost for large-scale procurement.

• Sustainability: Efficient material utilization and recyclable steel components; options for low-VOC packaging and supplier sustainability documentation on request.

• Technical support: Detailed dimensional drawings, bearing performance datasheets, installation and lubrication guidelines, and engineering consultancy for application matching and failure analysis.

• Risk mitigation: Pre-shipment inspection, FAI (first article inspection) reports, and availability of sealed/greased variants to reduce field rework.

5. Commercial & Supply Information

• Minimum order quantity (MOQ): BULK 20MT.

• Loading capacity (MT per container): Estimated 20–22 MT per standard 20ft container (final packing density depends on packaging configuration and part count).

• Lead time: Standard stock items—short lead times; bulk/contract orders—lead time per agreement (contact sales for current ETAs).

• Payment & shipping terms: Export-ready Incoterms available; payment terms negotiable for established corporate accounts.

• Documentation included: Packing list, commercial invoice, QA certificate, heat-treatment traceability, and material certificate upon shipment.