6909, 6909Z, 6909ZZ, 6909RS, 6909-2RS Deep Groove Ball Bearings 45x68x12mm – Heavy-Duty Precision Bearings for High-Speed Industrial & Mechanical Applications

6909, 6909Z, 6909ZZ, 6909RS, 6909-2RS Deep Groove Ball Bearings 45x68x12mm – Heavy-Duty Precision Bearings for High-Speed Industrial & Mechanical Applications

Robust 6909 series deep groove ball bearings in size 45mm (ID) × 68mm (OD) × 12mm (W), engineered for heavy-duty industrial and mechanical systems requiring reliable, smooth, and high-speed rotation under significant radial and moderate axial loads. Ideal for demanding applications where durability, load capacity, and long service life are critical.

Available in multiple sealing configurations to suit diverse operating conditions:

• 6909: Open type – best for clean environments or custom lubrication setups
• 6909Z / 6909ZZ (6909-2Z): Single or double metal shields – protect against dust while retaining factory grease
• 6909RS / 6909-2RS: Single or double rubber seals – offer superior resistance to moisture, dirt, and contaminants

Manufactured from high-grade chrome steel (GCr15) — with stainless steel available on request — these bearings feature precision-ground raceways for low friction, minimal vibration, and stable performance at elevated speeds. Widely used in large electric motors, industrial gearboxes, agricultural and construction machinery, pumps, compressors, conveyors, textile equipment, and automotive drivetrain components.

Most sealed variants come pre-lubricated with long-life, low-torque grease for maintenance-free operation. The 6909 series delivers an excellent balance of high load capacity, rotational accuracy, and robust design, making it a trusted choice for both OEM integration and industrial replacement.

🔧 Key Specifications:

• Models: 6909, 6909Z, 6909ZZ (6909-2Z), 6909RS, 6909-2RS
• Dimensions: 45 × 68 × 12 mm
• Material: Chrome Steel (GCr15) – stainless steel optional
• Precision Rating: ABEC-1 (standard); higher grades available
• Ideal for: Heavy industrial machinery, mining equipment, automation systems, and mechanical repair