3306-BD-XL-2Z-C3 Angular Contact Ball Bearing 3306zz for Railways Double Row P5 Precision Rating

3306-BD-XL-2Z-C3 is a high-performance angular contact ball bearing engineered for heavy-duty industrial applications. It features a BD-type 40° contact angle, an XL (extra load) design that enhances radial and axial load-carrying capacity, double steel shields (2Z) for effective dust and debris protection, and a C3 radial internal clearance that accommodates thermal expansion in high-temperature or high-speed operating conditions. Its precision-machined raceways and high-quality balls ensure smooth rotation, low vibration, and long service life even under continuous high-load and high-speed operation.​
Sizes​
30.2mm ID × 72mm OD × 27mm Width​
Interchange​
3306-BD-XL-2Z-C3 (cross-brand equivalents such as SKF 3306BDXL2ZC3, NSK 3306BD-XL-2Z-C3, NTN 3306BD2Z-C3XL, and other angular contact ball bearings with "30.2mm ID + 72mm OD + 27mm width", 40° contact angle, double steel shields, XL load rating, and C3 internal clearance)​
Applications​
Industrial Motors (high-power AC/DC motors), Machine Tool Spindles (milling machines, lathes), Water Pumps & Compressors, Automotive Transmission Systems, Heavy-Duty Fans & Blowers, and other scenarios requiring high radial/axial load capacity, precise rotation, and resistance to thermal expansion.