S6818
S6800 Series Stainless Steel Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
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S6818 Bearing Product Overview & Core Advantages
The S6818 is a metric single row deep groove ball bearing engineered for high-performance applications requiring precision and reliability. Constructed entirely from stainless steel, it offers excellent corrosion resistance. This bearing is designed to primarily handle radial loads and is characterized by its compact cross-section, with a bore diameter of 90 mm and a width of only 13 mm. Manufactured to ABEC-1 tolerance class, it ensures consistent operation and is ideal for applications demanding high rotational accuracy and long service life.
S6818 Bearing Model Code Explained, Specifications & Naming Convention
| Prefix/Suffix | Technical Meaning |
|---|---|
| S | Indicates the bearing ring and ball material is Stainless Steel. |
| 68 | Series designation for extra-thin section, deep groove bearings. |
| 18 | Bore diameter code (90 mm). |
| (No Seal Suffix) | The open (unsealed) design allows for higher limiting speeds and facilitates custom lubrication regimes. |
S6818 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to ABEC-1 standards, the S6818 provides precise running accuracy. The deep groove raceway and single-row design contribute to its structural stability under radial loads.
- Superior Load Capacity: With a dynamic load rating of 3703 lbf and a static load rating of 3945 lbf, this bearing is capable of handling significant radial forces for its compact size.
- Optimized for High-Speed Operation: The open design and stainless steel cage minimize friction and allow for a high limiting speed of 4,800 rpm.
- Corrosion Resistance & Compliance: The all-stainless steel construction (rings, balls, cage) ensures reliable performance in harsh environments and is compliant with ROHS and REACH regulations.
- Standard Internal Clearance: Features a C0 radial internal clearance (0.012mm to 0.036mm), suitable for a wide range of standard operating conditions.
S6818 Bearing Typical Application Areas
The S6818 is ideally suited for applications where compactness, precision, and corrosion resistance are critical. Common uses include:
- Precision Instruments and optical devices
- Medical Equipment and dental handpieces
- Food Processing Machinery (due to stainless steel construction)
- High-Speed Spindles in specialized machinery
- Office automation equipment and small electric motors
