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309515D Double Row Angular Contact Ball Bearing (140x209.5x66mm)
- Bearing Model: 309515D (Also commonly searched as 309515, 309515 D)
- Bearing Type: Double Row Angular Contact Ball Bearing
- Inner Diameter (d): 140 mm
- Outer Diameter (D): 209.5 mm (Critical Non-Standard Dimension)
- Width (B): 66 mm
- Design Feature: "D" suffix denotes a split inner ring for enhanced axial load capacity and easier mounting.
- Primary Application: Rolling mill equipment, specialized industrial gearboxes, and heavy metallurgical transmissions.
The 309515D is a highly specialized double row angular contact ball bearing, instantly recognizable by its non-standard dimensions of 140x209.5x66mm. Engineered primarily for specific rolling mill applications and heavy metallurgical machinery, this bearing features a two-piece (split) inner ring design, indicated by the "D" suffix. This split-ring construction allows it to accommodate massive bidirectional axial loads alongside heavy radial loads. Due to its unique 209.5mm outer diameter, it serves as a critical exact-fit replacement part for equipment where standard catalog bearings simply cannot fit. At DBS Bearing, each unit is rigorously inspected and carefully assembled to deliver exceptional rotational stability, significantly reducing maintenance downtime in your demanding production lines.
