KINEX 6008 ZZ Deep Groove Ball Bearing (40x68x15 mm)

Technical Specifications and Applications of the 6008 ZZ KINEX Bearing

Product Overview

The KINEX 6008 ZZ is a deep groove ball bearing featuring double metal shields (ZZ), designed for radial load support with reduced friction and reliable performance. Its shielded design (ZZ) protects against dust and contaminants while allowing high-speed operation. It is commonly used in electric motors, pumps, gearboxes, fans, and a wide range of industrial applications where a compact, durable bearing is required.

Key Specifications

• Bore (d): 40 mm

• Outer Diameter (D): 68 mm

• Width (B): 15 mm

• Bearing Type: Single-row deep groove ball bearing

• Shielding: ZZ - metal shields on both sides

• Load Ratings (typical for 6008 ZZ):
   • Dynamic load rating (Cr): ~ 20.9 kN
   • Static load rating (C0r): ~ 11.5 kN

• Fatigue load limit (Cu): ~ 0.690 kN

• Speed Capability: Suitable for high-speed use when properly lubricated

• Radial internal clearance: Standard (C0), with variants such as C3 available in some models

• Material: Chrome bearing steel

• Temperature Range: Typical operation from -30 °C to +110 °C (depending on lubricant and operating conditions)

Features & Advantages

1. Double Shielding (ZZ): Shields on both sides protect the rolling elements from dust, debris, and contamination, enhancing longevity.

2. Deep Groove Design: Efficient for radial loads with modest axial carrying capability when needed.

3. High Precision & Low Friction: Optimized for smooth performance and durability.

4. Wide Availability & Compatibility: The 6008 ZZ is a common standard size, making it easily interchangeable and suitable across many machines.

5. Pre-lubricated & Maintenance-Friendly: Typically shipped ready to use, less maintenance required in many applications.

6. Robust Load Capacity: Good balance of load handling and compact form factor.

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FAQ (Frequently Asked Questions)

Q: What does the “ZZ” in 6008 ZZ mean?
A: “ZZ” indicates that the bearing has double metal shields (one on each side) which help protect against dust and contaminants while still allowing relatively high speed operation.

Q: What are the dimensions of 6008 ZZ?
A: The dimensions are 40 mm (inner) x 68 mm (outer) x 15 mm (width).

Q: What’s the dynamic and static load capacity?
A: Typical dynamic load rating is ~ 20.9 kN, and static rating ~ 11.5 kN (for standard 6008 ZZ models).

Q: Can it handle high speeds?
A: Yes — with proper lubrication and under appropriate conditions, 6008 ZZ is capable of high-speed operation.

Q: Are there variants of internal clearance?
A: Yes — the standard is C0 (normal clearance), but versions with clearance C3 (greater internal clearance) are available for specific use cases.

Q: In what applications is 6008 ZZ commonly used?
A: Electric motors, pumps, fans, gearboxes, industrial machinery, conveyor components, and general mechanical systems requiring a robust, shielded bearing.

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