Cylindrical Roller Bearing NU205 Type

Description

1. Product Overview

Cylindrical Roller Bearing NU205 Type is a precision-engineered rolling-element bearing designed to support high radial loads with low friction in rotating machinery. It is primarily used in heavy-duty industrial equipment—gearboxes, electric motors, conveyors, and rolling mills—where reliable radial load capacity and high-speed stability are essential. The key value proposition is predictable, long-life performance under heavy radial loads combined with straightforward mounting and dismounting thanks to the separable inner ring design. Strategically, NU205 bearings reduce downtime and maintenance costs in production-critical assets, making them a core component in supply chains for heavy industry and OEMs.

2. Key Specifications & Technical Characteristics

• Bearing type: Cylindrical roller bearing, NU205 type (single row, separable inner ring allowing axial displacement of shaft relative to housing).

• Materials: High-carbon chromium bearing steel (typically AISI 52100 / ISO 683-17 grade), raceways and rollers hardened for wear resistance.

• Heat treatment: Induction hardened raceways, through-hardened rollers (typical case hardness and core hardness per industry standard).

• Surface finish: Precision-ground raceways and rollers to ISO dimensional/quality classes (e.g., P0/P6/P5 options available).

• Internal clearance: Standard NU internal clearance; custom C2/C3/C4 options on request.

• Lubrication: Compatible with grease or oil lubrication; grease-filled or open variants available.

• Sealing: Open design standard; seal shields or contact seals available upon specification.

• Dimensional data (typical NU205): bore 25 mm, outer diameter 47 mm, width 15 mm (confirm spec sheet for tolerances).

• Dynamic and static load ratings: Per industry catalog values (refer to technical datasheet for exact Cr and Cor ratings).

• Rotational speed limits: Dependent on lubrication and clearance, consult datasheet for permissible rpm.

• Packaging: Industrial bulk boxes (count per box specified), wooden pallets, protective inner wrapping, anti-corrosion inhibitor.

• Traceability: Batch/Lot marking and material certificates (e.g., EN/ISO-compliant test reports) available.

• Shelf life: Indefinite when stored dry, clean, and in original packaging; recommend first-in-first-out for long-term stock.

3. Core Industrial Applications

• Primary industries: Heavy machinery manufacturing, steel and metal processing, pulp & paper, mining, cement, power generation, conveyors and material handling, rail and transportation, and large electric motor OEMs.

• Operational use cases: Radial-load bearing in gearbox intermediate shafts, motor bearings under high load, idler rollers and conveyor drives, mill stands and roll necks where axial displacement must be accommodated.

• Performance advantages over alternatives: Higher radial load capacity per unit volume than ball bearings, better stiffness under load than plain bearings, and easier assembly/disassembly than non-separable designs. NU205’s separable inner ring allows axial positioning flexibility, simplifying maintenance and reducing alignment-related failures.

• Commercial relevance: Extends equipment run-time, lowers mean time to repair (MTTR), and reduces lifecycle cost through increased bearing life and lower failure rates.

4. Competitive Advantages

• Quality consistency: Manufactured to recognized ISO/ABEC/IAJ standards with strict dimensional and metallurgical controls to ensure uniform performance across batches.

• Supply reliability: Industrial-scale production and managed inventory ensure consistent availability for OEMs and MRO supply chains.

• Logistics capability: Configurable packaging for bulk shipments, export-ready crating, and coordinated LCL/FCL container loading optimized for 20MT MOQ and standard container capacities.

• Price competitiveness: Economies of scale and streamlined sourcing allow competitive per-unit pricing for bulk procurement while maintaining material and processing quality.

• Sustainability: Long service life reduces replacement frequency and lifecycle environmental impact; packaging options minimize waste and support returnable/recyclable materials on request.

• Technical support: Full technical documentation (dimension drawings, load ratings, installation/removal guidelines, lubrication recommendations), material certificates, and engineering support for fitment and lifecycle optimization.

5. Commercial & Supply Information

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

• Loading capacity (MT per container): Configurable by packaging; typical 20-foot container capacity optimized for bulk loading up to 20 MT, 40-foot containers up to ~25–26 MT depending on palletization and packaging.

• Order fulfillment: Batch-traceable shipments with material certificates and packing lists; lead times depend on order size and stock status—contact sales for real-time availability.