SF682x
SF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
SF682x Bearing Product Overview & Core Advantages
The SF682x is a miniature deep groove ball bearing designed for applications demanding compact dimensions and reliable performance. Engineered with a single row construction and open design, this metric bearing is optimized for radial loads in high-speed scenarios. Its all-stainless steel construction (rings, balls, and cage) ensures excellent corrosion resistance and operational integrity. The SF682x is characterized by its extremely small size (2.5 mm bore, 6 mm OD) and light weight (0.24 g), making it an ideal precision bearing for compact mechanisms requiring smooth, low-friction rotation.
SF682x Bearing Model Code Explained, Specifications & Naming Convention
The SF682x model designation indicates a specific bearing series. While the full suffix code is not provided in the specifications, the key design attributes are defined by its construction:
- SF682x: Denotes the bearing series, typically indicating a specific internal design and size standard for miniature bearings.
- Open (Seal Type): The bearing is unsealed, allowing for higher limiting speeds and customization of lubrication, but requires a clean operating environment or external sealing.
- ABEC1: Specifies the tolerance class, defining standard precision levels for runout and dimensions, suitable for a wide range of general applications.
- MC3: Indicates the standard radial internal clearance for deep groove ball bearings, appropriate for most common operating conditions.
SF682x Bearing Structural Features & Performance Benefits
The performance of the SF682x is a direct result of its meticulous design and material selection:
- High-Speed Capability: The open structure, combined with a stainless steel cage and optimized internal geometry, enables a very high limiting speed of 63,900 rpm, making it an excellent high-speed bearing.
- Corrosion Resistance: Manufactured entirely from stainless steel, this bearing is inherently resistant to rust and corrosion, ideal for applications exposed to moisture or harsh environments.
- Compact and Lightweight: With a width of only 1.8 mm and a weight of 0.24 g, it provides a minimalistic solution for space-constrained and weight-sensitive designs.
- Integrated Flange: The flange outer diameter of 7.1 mm facilitates secure and simplified mounting, enhancing positional accuracy and ease of assembly.
SF682x Bearing Typical Application Areas
The SF682x miniature bearing is suited for a diverse range of compact, high-speed devices, including:
- Small DC and coreless motors
- Precision instruments and optical encoders
- Medical devices and dental handpieces
- Robotics and miniature gearboxes
- Radio-controlled models and drones
- Office automation equipment (e.g., small printers, scanners)
