Set of 10 Precision Sealed Deep Groove Ball Bearings for Enhanced Performance (ZZ)

Product Overview:

💎 This set includes 10 pieces of premium Deep Groove Ball Bearings, specifically designed for a variety of applications including longboard roller skates. Featuring multiple sizes—684, 688, 686, 687, 689, and 685—these bearings are crafted to suit your specific needs with precision.

Sizes and Specifications:

• 684: 4x9x4mm
• 688: 8x16x5mm
• 686: 6x13x5mm
• 687: 7x14x5mm
• 689: 9x17x5mm
• 685: 5x11x5mm

🔧 Features:

🛡️ The 688-2RS bearings are sealed on both sides, providing superior protection against external contaminants while ensuring that the lubrication remains intact. Constructed from durable Chromium Steel (GCr15), these bearings are designed to withstand heavy loads without deforming, promising longevity in high-performance applications.

🏆 Performance Ratings:

💍 Offering an ABEC Tolerance grade of 3 (P6), these bearings achieve a static load rating of 474N and a dynamic load rating of 1064N, making them suitable for a wide range of uses. With a Z2 noise level, the bearings perform quietly, enhancing the overall user experience.

Quality Grade Explanation:

💍 Our bearings are available in various quality grades, including ABEC-1, ABEC-3, and ABEC-5. Each grade is tailored for specific operating conditions:

• ABEC-1: Basic accuracy, designed for low-speed applications where precision is less critical.
• ABEC-3: Offers a smoother feel and higher precision, suitable for moderate-speed uses across various equipment.
• ABEC-5: Ideal for high-speed applications, ensuring excellent performance and durability.

🛠️ Usage Guidelines:

💍 These bearings can comfortably accommodate both radial and axial loads in either direction, making them highly versatile. They are particularly beneficial in environments with low Mohs hardness requirements.

Design Choice:

⚡ It's important to select the correct type of bearing based on your needs: choose shielded (designated with a suffix of Z/ZZ) for high-speed applications needing protection from dirt, or sealed (designated with a suffix of RS/2RS) for oil and liquid resistance, albeit with slightly lower speed capabilities.

📦 Included in the Package:

💍 The set includes 10 pieces of bearings, catering to your assorted project needs with reliability and efficiency.