Product Description

Double-row cylindrical roller bearings comprise an inner ring, outer ring, two rows of parallel cylindrical rollers, and a cage, with line contact between rollers and raceways. These bearings deliver high radial load capacity, exceptional rigidity, and separability, serving as core components in heavy-duty, high-precision, medium-to-high-speed rotational applications.

Features and Advantages

● High load capacity

The combination of double-row rollers and line contact provides 70%–80% greater radial load capacity than single-row bearings of equivalent size, making them suitable for heavy loads and impact conditions.

● High rigidity, low deformation

Their compact structure and numerous rollers deliver exceptional radial rigidity with minimal deformation under load, ensuring shaft system precision and stability.

● Low Friction, High Rotational Speed

Optimised roller end faces and flange design minimise friction coefficient, achieving near-equivalent maximum rotational speeds to deep groove ball bearings for medium-to-high-speed applications.

● Axial Free Play

Permits bidirectional axial displacement between shaft and housing bore, compensating for thermal expansion and installation errors. Commonly employed as a floating support.

● Convenient Installation and Maintenance

Separable rings facilitate assembly, inspection, and replacement. Tapered bores allow fine adjustment of clearance, simplifying positioning.

● Demands High Installation Precision

Shaft misalignment is virtually impermissible, as it may cause stress concentration and reduced service life.

Product Applications

Machine tool spindles, large motors, gearboxes, rolling mills, mining machinery, cranes, printing machinery, textile machinery, compressors, water pumps, marine machinery, construction machinery, new energy equipment, metallurgical equipment, conveying machinery, etc.