6708
6700 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
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6708 Bearing Product Overview & Core Advantages
The 6708 metric ball bearing is a precision-engineered single row deep groove ball bearing designed for reliable performance in a wide range of industrial applications. Characterized by its compact cross-section with a 6 mm width, this bearing excels in handling primarily radial loads efficiently. Manufactured to ABEC-1 precision tolerance class, it ensures consistent operation and is an ideal choice for applications demanding high reliability and cost-effectiveness. Its open design requires lubrication, offering flexibility in grease selection based on specific operational needs.
6708 Bearing Model Code Explained, Specifications & Naming Convention
The model number 6708 follows a standard industry nomenclature. Here is a breakdown of its key characteristics:
- 67: Indicates a "Extra Light" series with a very thin cross-section.
- 08: Specifies a bore diameter of 40 mm (08 x 5 = 40 mm).
- No Suffix: The absence of additional suffix codes confirms this is an open (unsealed) bearing with standard C0 radial internal clearance.
6708 Bearing Structural Features & Performance Benefits
The performance of the 6708 bearing is a direct result of its robust construction and material selection.
- High-Quality Materials: Both rings and balls are made from Chrome Steel, providing excellent hardness and wear resistance. The stainless steel cage ensures durability and reliable performance at the specified limiting speed.
- Optimized Load Capacity: With a dynamic load rating of 565 lbf and a static load rating of 502 lbf, this bearing is engineered to handle significant radial forces for its size.
- Precision & Stability: The ABEC-1 tolerance class and controlled C0 radial internal clearance (0.006mm to 0.020mm) contribute to smooth, low-vibration operation, enhancing the lifespan of the entire assembly.
- Compact & Lightweight: Weighing only 23 grams, its slim profile is ideal for space-constrained designs without compromising on performance.
6708 Bearing Typical Application Areas
The 6708 thin-section ball bearing is versatile and finds use in numerous precision applications, including:
- Small Electric Motors and Gearboxes
- Medical and Dental Equipment
- Precision Instruments and Optical Devices
- Office Automation Equipment (e.g., Printers, Scanners)
- Robotics and Small Actuators
