BS2-2209 K.2RS.VT143 STC spherical roller bearing

STC BS2-2209-K-2RS-VT143 Sealed Spherical Roller Bearing (Tapered Bore)

The STC BS2-2209-K-2RS-VT143 is an advanced, double-row rolling unit engineered for the most demanding industrial environments. Equipped with contact seals (2RS) on both sides, it effectively protects the raceways from dust, dirt, and moisture, drastically extending its service life in aggressive conditions. The VT143 suffix indicates a factory fill with high-grade lithium grease, eliminating the need for regular maintenance. Thanks to its tapered bore (K) with a 1:12 taper, the bearing allows for highly precise radial clearance adjustment when mounted using an adapter sleeve.

Application

• Conveyor Systems: Perfect for drive and return pulleys in mines and quarries due to 2RS sealing.
• Agricultural Machinery: Shaft support in harvesters and seeders exposed to soil and water contact.
• Industrial Fans: Ensuring long, maintenance-free operation in hard-to-reach service areas.
• Wood Processing: Resistance to sawdust and wood particles in chippers and sawmills.
• Lifting Equipment: Winches and cranes operating in variable outdoor conditions.

Technical Specification

• Manufacturer: STC (Specialized Technical Components).
• Designation: BS2-2209-K-2RS-VT143.
• Dimensions: 45 mm (ID) x 85 mm (OD) x 28 mm (Width).
• Tapered Bore (K): 1:12 taper (usually mounted on an H309 sleeve).
• Sealing: 2RS (Rubber contact seals on both sides).
• Lubrication: VT143 (Factory premium lithium grease fill).

Features and Benefits

• Full Self-Alignment: Automatic compensation for shaft deflections and housing misalignments.
• Maintenance-Free: Factory lubrication and sealing save on maintenance time and costs.
• Precision Mounting: Tapered bore ensures a secure fit even with looser shaft tolerances (when using a sleeve).
• Maximum Protection (2RS): Effective isolation of the bearing's interior from external contaminants.
• High Load Capacity: Double-row design guarantees resistance to extreme radial forces.

Why Choose This Product

By choosing the STC BS2-2209-K-2RS-VT143, you are investing in a maximum-reliability solution. In 45 mm shaft applications where dust and moisture are constant factors, standard open bearings require frequent attention. This sealed STC model with a tapered bore ensures stable operation of your production line and a significant reduction in service costs thanks to its "fit and forget" technology.