SW 6203-2ZUNK Deep Groove Ball Bearing | 17x40x12mm | Sealed for Severe Industrial Service
The SW 6203-2ZUNK is a premium deep groove ball bearing engineered specifically for demanding industrial environments where standard specifications fall short. Featuring a standard 17mm bore, 40mm outer diameter, and 12mm width, this bearing utilizes two non-contact metal shields (2Z) to efficiently retain the high-performance lubricant and exclude significant contamination. The proprietary 'UNK' designation signifies upgraded internal geometry and specialized heat treatment, providing enhanced performance under conditions involving elevated vibration, axial misalignment, or increased load cycles. This configuration ensures superior reliability and extended service life compared to standard C0 clearance bearings, making it ideal for electric motors, gearboxes, and high-duty machinery.
Selecting the SW 6203-2ZUNK dramatically reduces total cost of ownership (TCO) by minimizing unplanned downtime and decreasing maintenance frequency. Manufactured using high-purity bearing steel (AISI 52100) and precision finished to meet P6 (ABEC-3) tolerance standards, this bearing guarantees smooth operation and reduced noise profiles across its entire service life. The tailored internal clearance (often equivalent to C3 or specialized application clearance) ensures optimal fit under thermal expansion and load, delivering maximum efficiency and power transfer in critical high-speed or continuously operating industrial processes.
Key Features
Enhanced 'UNK' Internal Geometry for severe duty and high vibration applications.
Two integrated metal shields (2Z) protect against large particle contamination while maintaining lubrication.
High Dynamic Load Rating (9.55 kN) designed for demanding industrial cycling.
Precision machined to P6 tolerance standards for reliable high-speed performance.
Optimal for use in pumps, industrial fans, small gearboxes, and high-volume conveyor systems.
Significantly extends Mean Time Between Failures (MTBF) in critical machinery.
Technical Specifications
d
17 mm
D
40 mm
B
12 mm
Bearing_Type
Deep Groove Ball Bearing (DGBB)
Shields
2Z (Two Metal Shields)
Internal_Clearance
UNK (Specialized Industrial Clearance, typically C3 equivalent)
