The 6203 ZZ High-Temperature Resistant Bearing is a premium deep groove ball bearing designed specifically for demanding automotive applications, particularly in automobile tensioner systems. Engineered to withstand elevated temperatures and harsh operating conditions, this bearing ensures smooth rotation, reduced friction, and extended service life even under continuous stress.

Featuring dual metal shields (ZZ) for enhanced protection against dust and contaminants, this bearing is ideal for high-speed and high-load environments. Its heat-resistant steel construction and precision-ground components make it a reliable choice for automotive tensioners, pulleys, and other critical engine components.

Specifications:

• Model: 6203 ZZ

• Type: Deep Groove Ball Bearing

• Inner Diameter (ID): 17 mm

• Outer Diameter (OD): 40 mm

• Width (W): 12 mm

• Shield Type: Double Metal Shields (ZZ)

• Material: High-Grade Chrome Steel (GCr15)

• Cage Material: Steel/Nylon (optional)

• Temperature Resistance: Up to 120°C (248°F) (higher with special grease)

• Speed Rating: High-speed capable (varies with lubrication)

• Precision Grade: ABEC-1 (standard), higher grades available

• Lubrication: Pre-lubricated with high-temperature grease

Key Features:

✔ High-Temperature Resistance – Reliable performance in hot engine environments.
✔ Dual Metal Shields (ZZ) – Protects against dust and debris while retaining lubrication.
✔ Low Noise & Vibration – Smooth operation for reduced wear in tensioner systems.
✔ Long Service Life – Precision engineering ensures durability under heavy loads.
✔ Wide Compatibility – Fits standard automobile tensioners and pulley systems.

Applications:

✅ Automotive Tensioners – Ensures proper belt tension in timing and accessory drive systems.
✅ Idler & Guide Pulleys – Reduces friction in serpentine and timing belt systems.
✅ Electric Motors & Alternators – Supports high-speed rotation in automotive electrical components.
✅ Industrial Machinery – Suitable for high-temperature environments in conveyors and pumps.