N315EA Single Row Cylindrical Roller Bearing — 75×160mm
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N315EA Single Row Cylindrical Roller Bearing — 75×160mm
Replacing an oversized N-series unit with the N315EA saves space without sacrificing load capacity, whereas swapping to a standard open design often reduces fatigue life in high-speed scenarios. The N315EA delivers a compact footprint with 75×160mm boundary dimensions while maintaining the radial rigidity required for demanding rotary shafts where thermal stability is critical.
At a glance
How does the N315EA compare to standard N315 equivalents?
The EA designation represents a comprehensive internal redesign rather than a minor cosmetic update. The roller ends feature optimized crowning profiles that redistribute contact stress away from sharp edges, significantly delaying crack initiation points common in older N-designs. When analyzing equivalent models, engineers frequently observe that cross-references to basic N315 units overlook the enhanced load-carrying potential derived from these geometric improvements. The rib design also incorporates modified chamfer angles to improve lubricant retention, which translates to longer service intervals compared to unmodified counterparts. This level of refinement ensures that this unit outperforms generic substitutes, particularly in applications where misalignment compensation is required. You can explore more options within our Single row cylindrical roller bearings category to find compatible variations for your machinery.
What are the boundary dimensions and load ratings?
Dimensional precision remains paramount for interchange success. The bearing maintains a bore of 75 mm, accommodating standard diameter shafts, while the outer diameter spans 160 mm. With a width of 37 mm, the unit offers significant contact area for axial guidance compared to thinner alternatives. The dynamic load rating of 284,000 N serves as the baseline for calculating fatigue life under steady-state conditions, indicating resilience against rolling contact fatigue. The static load rating of 263,000 N establishes the threshold beyond which permanent deformation compromises rotational smoothness. Surface roughness on the mating journal must be controlled strictly; excessive texture can damage the raceway under high contact pressures. Additionally, checking housing shoulder radii is critical to avoid interference with the inner ring corner radius.
Which applications suit this bearing?
The mechanical characteristics make it ideal for sectors prioritizing durability and throughput. Applications such as wind turbine pitch mechanisms benefit from the low-friction properties of the resin cage, which helps maintain efficiency despite variable load directions. In printing presses, the rigidity provided by the single-row cylindrical roller arrangement ensures registration accuracy during high-speed web movement. The bearing also excels in agricultural harvesters exposed to abrasive environments, where the interface between the cage and rollers resists particle ingress better than some metal alternatives. Each of these uses leverages the specific balance of stiffness and low inertia inherent to this design.
How should the unit be installed?
Execution of the mounting process directly influences the realized lifespan. Prior to installation, inspect the shaft fillets and housing shoulders for burrs or machining marks that could act as stress concentrators. Cleanliness protocols should eliminate any residual cutting fluids or particulate matter from contact zones. Since the inner ring is designed for an interference fit, applying uniform axial force is essential; using a drift bar across the entire face of the ring prevents tilting and skewing. Thermal expansion techniques require careful temperature control to avoid exceeding material limits. Once seated, verify axial positioning with shims or collars to lock the ring against the shoulder. Proper lubrication selection based on operating speed and temperature completes the preparation phase. Consult the bearing number reference documentation for specific fitting recommendations linked to this model’s geometry.
Where can you source this component?
Reliable supply and technical support ensure uninterrupted production schedules. FIJ Bearing provides this model with rigorous quality assurance measures, including dimensional inspection and noise testing to meet global industry expectations. Stock availability minimizes downtime for urgent replacements, while customized packaging protects units during transit. For complex inquiries involving non-standard configurations or volume procurement, our engineering department offers direct assistance. You can initiate discussions through the main portal at FIJ Bearing to access catalogs, datasheets, and expert guidance tailored to your industrial needs. Contact us to request a quote for the N315EA and optimize your sourcing today.