Precision SB203 Set-Screw Insert Ball Bearing | 17mm Bore x 40mm Outer Diameter x 12mm Width (Replaces SB203-17MM, SB203-17MMN)

Technical Specifications & Cross-Reference Directory

• Product Series: SB203 (17mm Precision Metric Bore Profile)

• OEM Interchange Match List: SB203, SB203-17MM, SB203-17MMN, GE17KRRB

• Metric Bore Diameter (Inner d): 17 mm

• Outer Diameter (Outer D): 40 mm

• Overall Thickness / Width (B): 12 mm (Space-saving compact profile optimized for tight assemblies)

• Alloy Composition: High-Carbon GCr15 Bearing-Grade Chrome Steel

• Locking Mechanism: Integrated Set-Screw Locking Collar for secure, slip-free shaft anchoring

• Outer Ring Contour: Spherical Outer Surface (Compensates smoothly for initial shaft deflection and housing misalignment)

• Sealing Technology: Reinforced Dual-Lip Contact Rubber Seals with Steel Deflector Shields

Core Engineering Advantages

• Reliable Shaft Anchoring: The precision set-screw locking collar ensures firm, stable grip on standard 17mm transmission shafts under continuous operational cycles.

• Whisper-Quiet Rotation: Super-finished internal raceways minimize friction coefficients, maintaining stable, cool operating temperatures at high speeds.

• Space-Saving Integration: Tailored for seamless drop-in fit inside compact 203-series industrial pillow blocks, pressed-steel flanged units, and lightweight housings.

• Effective Contamination Defense: Factory pre-lubricated with multi-purpose grease and tightly shielded to block out dust, debris, and moisture infiltration.

Typical Operational Sectors

• Automation & Robotics: Small conveyor modules, automated guided vehicle (AGV) wheels, and light assembly lines.

• Agricultural Small Machinery: Lightweight grain sifters, garden equipment, and small seeders.

• General Industrial Appliances: Small ventilation fans, textile processing units, and food packaging machinery.