
Engineered for precision small-scale mechanical assemblies, light automation lines, and fractional horsepower drives, the SB201-8 insert bearing delivers exact 1/2" x 40mm x 12mm dimensions manufactured from premium GCr15 high-carbon steel. Equipped with a secure dual set-screw locking collar for reliable shaft retention, it functions as an exceptional direct OEM drop-in replacement for SB201-8, SB201-8KG5, and SB201-8G.
π Technical Specifications & Cross-Reference Directory
Product Series: SB201-8 (1/2" Precision Imperial Bore Profile)
OEM Interchange Match List: SB201-8, SB201-8KG5, SB201-8G, GE008KRRB
Imperial Bore Diameter (Inner d): 1/2 Inch (0.500" / 12.7 mm)
Outer Diameter (Outer D): 40 mm
Overall Thickness / Width (B): 12 mm (Compact space-saving profile optimized for tight assemblies)
Alloy Composition: High-Carbon GCr15 Bearing-Grade Chrome Steel
Locking Mechanism: Extended Inner Ring with Dual Set-Screws 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
π‘ Core Engineering Advantages
Secure Shaft Grip: The precision dual set-screw collar ensures firm, slip-free anchoring on standard 1/2-inch transmission shafts under vibrational loads.
Whisper-Quiet Rotation: Super-finished internal raceways minimize friction coefficients, maintaining stable, cool operating temperatures at continuous speeds.
Space-Saving Integration: Tailored for seamless drop-in fit inside compact 201-series 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.
βοΈ Typical Operational Sectors
Light Automation & Robotics: Small conveyor modules, packaging machinery wheels, and automated sorting guides.
Agricultural & Garden Equipment: Lightweight grain sifters, lawn care attachments, and small seeders.
General Industrial Appliances: Small ventilation fans, textile processing units, and light commercial appliances.

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