NSK 21316 EAE4 HPS 75x160x37 mm Spherical Roller Bearing

Heavy-Duty Spherical Bearing for Industrial Applications

High load capacity, self-aligning reliability, and rugged construction

The NSK 21316 EAE4 HPS is a robust, double-row spherical roller bearing sized 75 mm (bore) x 160 mm (outer diameter) x 37 mm (width), designed for heavy-duty industrial environments. Its configuration with barrel-shaped rollers provides exceptional load capacity in both radial and axial directions, while the spherical outer raceway ensures self-alignment, compensating shaft misalignment or housing deformation during operation. The “HPS” variant denotes enhanced durability and resistance to demanding working conditions.

Key Advantages & Typical Applications

• Outstanding radial and axial load capacity — ideal for heavy machinery, gearboxes, industrial drives, conveyors, crushers, mills, and rotating equipment under high stress.

• Self-aligning design — spherical outer ring allows compensation of shaft deflection or assembly misalignment, prolonging bearing life and ensuring stable operation.

• Built for harsh conditions — strong roller construction and premium materials resist vibrations, shocks, and dynamic loading, suitable for heavy-duty industrial environments.

• Versatile industrial use — manufacturing plants, material processing, heavy-duty drives, conveyors, mining, crushers, construction machinery, and other high-load applications.

• Long service life and reduced maintenance — precision internal geometry and durable build minimize wear, extending operating periods between overhauls.

Detailed Product Description

The NSK 21316 EAE4 HPS 75x160x37 mm spherical roller bearing is engineered for demanding industrial applications where maximum load tolerance, durability, and operational reliability are essential. Its double-row barrel-roller configuration distributes both radial and axial loads effectively, making it suitable for heavy shafts, gearboxes, industrial drives, and rotating machinery subjected to substantial forces.

The self-aligning spherical outer raceway makes this bearing tolerant to installation imprecisions, shaft misalignment, or structural deformation — ensuring smooth operation even under imperfect mounting conditions. This feature significantly reduces stress on rollers and raceways, prolonging service life and minimizing maintenance needs.

Constructed from high-grade steel with robust rollers and optimized internal geometry, the 21316 EAE4 HPS bearing withstands vibrations, shocks, and dynamic loads. It is especially suited for heavy-duty conveyors, crushers, mills, processing equipment, mining and construction machinery, industrial gearboxes, and any application requiring strong, stable bearing units.

Its combination of high load capacity, self-alignment, and rugged construction makes it a reliable choice for new machinery or retrofitting existing equipment — ensuring long-term operational stability and reduced downtime.

FAQ - Frequently Asked Questions

Can NSK 21316 EAE4 HPS handle both radial and axial loads?
Yes — its spherical roller design accommodates significant radial loads and axial loads in both directions, suitable for heavy-duty tasks.

Does the bearing compensate for shaft misalignment or housing deformation?
Yes — the self-aligning spherical outer ring adapts to shaft deflection or structural irregularities, maintaining stable performance.

Where is this bearing commonly used?
Heavy machinery, industrial drives, conveyor systems, crushers, mills, mining equipment, processing plants, rotating assemblies, heavy-duty gearboxes.

Is the bearing suitable for environments with vibration, shock, or heavy dynamic loads?
Yes — its durable roller design and construction make it resistant to vibrations, dynamic stresses, and harsh operating conditions.

Does NSK 21316 EAE4 HPS require frequent maintenance?
No — with proper lubrication and standard operating conditions, it offers long service life and low maintenance demands due to its robust construction.